diff --git a/Cargo.lock b/Cargo.lock
index b7bdb47c5..3c6b01c69 100644
--- a/Cargo.lock
+++ b/Cargo.lock
@@ -65,15 +65,10 @@ version = "0.2.14"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 dependencies = [
  "hermit-abi 0.1.13 (registry+https://github.com/rust-lang/crates.io-index)",
- "libc 0.2.70 (registry+https://github.com/rust-lang/crates.io-index)",
+ "libc 0.2.74 (registry+https://github.com/rust-lang/crates.io-index)",
  "winapi 0.3.8 (registry+https://github.com/rust-lang/crates.io-index)",
 ]
 
-[[package]]
-name = "autocfg"
-version = "0.1.7"
-source = "registry+https://github.com/rust-lang/crates.io-index"
-
 [[package]]
 name = "autocfg"
 version = "1.0.0"
@@ -86,7 +81,7 @@ source = "registry+https://github.com/rust-lang/crates.io-index"
 dependencies = [
  "addr2line 0.12.1 (registry+https://github.com/rust-lang/crates.io-index)",
  "cfg-if 0.1.10 (registry+https://github.com/rust-lang/crates.io-index)",
- "libc 0.2.70 (registry+https://github.com/rust-lang/crates.io-index)",
+ "libc 0.2.74 (registry+https://github.com/rust-lang/crates.io-index)",
  "object 0.19.0 (registry+https://github.com/rust-lang/crates.io-index)",
  "rustc-demangle 0.1.16 (registry+https://github.com/rust-lang/crates.io-index)",
 ]
@@ -105,15 +100,6 @@ name = "base-x"
 version = "0.2.6"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 
-[[package]]
-name = "base64"
-version = "0.6.0"
-source = "registry+https://github.com/rust-lang/crates.io-index"
-dependencies = [
- "byteorder 1.3.4 (registry+https://github.com/rust-lang/crates.io-index)",
- "safemem 0.2.0 (registry+https://github.com/rust-lang/crates.io-index)",
-]
-
 [[package]]
 name = "base64"
 version = "0.9.3"
@@ -148,15 +134,6 @@ dependencies = [
  "constant_time_eq 0.1.5 (registry+https://github.com/rust-lang/crates.io-index)",
 ]
 
-[[package]]
-name = "block-buffer"
-version = "0.3.3"
-source = "registry+https://github.com/rust-lang/crates.io-index"
-dependencies = [
- "arrayref 0.3.6 (registry+https://github.com/rust-lang/crates.io-index)",
- "byte-tools 0.2.0 (registry+https://github.com/rust-lang/crates.io-index)",
-]
-
 [[package]]
 name = "block-buffer"
 version = "0.7.3"
@@ -184,18 +161,6 @@ dependencies = [
  "byte-tools 0.3.1 (registry+https://github.com/rust-lang/crates.io-index)",
 ]
 
-[[package]]
-name = "bodyparser"
-version = "0.8.0"
-source = "registry+https://github.com/rust-lang/crates.io-index"
-dependencies = [
- "iron 0.5.1 (registry+https://github.com/rust-lang/crates.io-index)",
- "persistent 0.4.0 (registry+https://github.com/rust-lang/crates.io-index)",
- "plugin 0.2.6 (registry+https://github.com/rust-lang/crates.io-index)",
- "serde 1.0.110 (registry+https://github.com/rust-lang/crates.io-index)",
- "serde_json 1.0.53 (registry+https://github.com/rust-lang/crates.io-index)",
-]
-
 [[package]]
 name = "bstr"
 version = "0.2.13"
@@ -207,25 +172,11 @@ dependencies = [
  "serde 1.0.110 (registry+https://github.com/rust-lang/crates.io-index)",
 ]
 
-[[package]]
-name = "buf_redux"
-version = "0.6.3"
-source = "registry+https://github.com/rust-lang/crates.io-index"
-dependencies = [
- "memchr 1.0.2 (registry+https://github.com/rust-lang/crates.io-index)",
- "safemem 0.2.0 (registry+https://github.com/rust-lang/crates.io-index)",
-]
-
 [[package]]
 name = "bumpalo"
 version = "3.3.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 
-[[package]]
-name = "byte-tools"
-version = "0.2.0"
-source = "registry+https://github.com/rust-lang/crates.io-index"
-
 [[package]]
 name = "byte-tools"
 version = "0.3.1"
@@ -236,15 +187,6 @@ name = "byteorder"
 version = "1.3.4"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 
-[[package]]
-name = "bytes"
-version = "0.4.12"
-source = "registry+https://github.com/rust-lang/crates.io-index"
-dependencies = [
- "byteorder 1.3.4 (registry+https://github.com/rust-lang/crates.io-index)",
- "iovec 0.1.4 (registry+https://github.com/rust-lang/crates.io-index)",
-]
-
 [[package]]
 name = "bytes"
 version = "0.5.4"
@@ -318,17 +260,25 @@ dependencies = [
  "bitflags 1.2.1 (registry+https://github.com/rust-lang/crates.io-index)",
 ]
 
+[[package]]
+name = "cloudabi"
+version = "0.1.0"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+dependencies = [
+ "bitflags 1.2.1 (registry+https://github.com/rust-lang/crates.io-index)",
+]
+
 [[package]]
 name = "comrak"
-version = "0.3.1"
+version = "0.8.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 dependencies = [
  "entities 1.0.1 (registry+https://github.com/rust-lang/crates.io-index)",
  "lazy_static 1.4.0 (registry+https://github.com/rust-lang/crates.io-index)",
- "pest 1.0.6 (registry+https://github.com/rust-lang/crates.io-index)",
- "pest_derive 1.0.8 (registry+https://github.com/rust-lang/crates.io-index)",
+ "pest 2.1.3 (registry+https://github.com/rust-lang/crates.io-index)",
+ "pest_derive 2.1.0 (registry+https://github.com/rust-lang/crates.io-index)",
  "regex 1.3.7 (registry+https://github.com/rust-lang/crates.io-index)",
- "twoway 0.1.8 (registry+https://github.com/rust-lang/crates.io-index)",
+ "twoway 0.2.1 (registry+https://github.com/rust-lang/crates.io-index)",
  "typed-arena 1.7.0 (registry+https://github.com/rust-lang/crates.io-index)",
  "unicode_categories 0.1.1 (registry+https://github.com/rust-lang/crates.io-index)",
 ]
@@ -352,7 +302,7 @@ version = "0.7.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 dependencies = [
  "core-foundation-sys 0.7.0 (registry+https://github.com/rust-lang/crates.io-index)",
- "libc 0.2.70 (registry+https://github.com/rust-lang/crates.io-index)",
+ "libc 0.2.74 (registry+https://github.com/rust-lang/crates.io-index)",
 ]
 
 [[package]]
@@ -385,7 +335,7 @@ dependencies = [
  "badge 0.3.0",
  "base64 0.12.1 (registry+https://github.com/rust-lang/crates.io-index)",
  "chrono 0.4.11 (registry+https://github.com/rust-lang/crates.io-index)",
- "comrak 0.3.1 (registry+https://github.com/rust-lang/crates.io-index)",
+ "comrak 0.8.0 (registry+https://github.com/rust-lang/crates.io-index)",
  "crates-index-diff 7.0.1 (registry+https://github.com/rust-lang/crates.io-index)",
  "criterion 0.3.3 (registry+https://github.com/rust-lang/crates.io-index)",
  "dotenv 0.15.0 (registry+https://github.com/rust-lang/crates.io-index)",
@@ -399,13 +349,12 @@ dependencies = [
  "mime_guess 2.0.3 (registry+https://github.com/rust-lang/crates.io-index)",
  "notify 4.0.15 (registry+https://github.com/rust-lang/crates.io-index)",
  "once_cell 1.4.0 (registry+https://github.com/rust-lang/crates.io-index)",
- "params 0.8.0 (registry+https://github.com/rust-lang/crates.io-index)",
  "path-slash 0.1.3 (registry+https://github.com/rust-lang/crates.io-index)",
- "postgres 0.15.2 (registry+https://github.com/rust-lang/crates.io-index)",
+ "postgres 0.17.5 (registry+https://github.com/rust-lang/crates.io-index)",
  "procfs 0.7.9 (registry+https://github.com/rust-lang/crates.io-index)",
  "prometheus 0.7.0 (registry+https://github.com/rust-lang/crates.io-index)",
  "r2d2 0.8.8 (registry+https://github.com/rust-lang/crates.io-index)",
- "r2d2_postgres 0.14.0 (registry+https://github.com/rust-lang/crates.io-index)",
+ "r2d2_postgres 0.16.0 (registry+https://github.com/rust-lang/crates.io-index)",
  "rand 0.7.3 (registry+https://github.com/rust-lang/crates.io-index)",
  "regex 1.3.7 (registry+https://github.com/rust-lang/crates.io-index)",
  "reqwest 0.10.6 (registry+https://github.com/rust-lang/crates.io-index)",
@@ -416,7 +365,7 @@ dependencies = [
  "rustwide 0.7.1 (registry+https://github.com/rust-lang/crates.io-index)",
  "sass-rs 0.2.2 (registry+https://github.com/rust-lang/crates.io-index)",
  "schemamama 0.3.0 (registry+https://github.com/rust-lang/crates.io-index)",
- "schemamama_postgres 0.2.4 (registry+https://github.com/rust-lang/crates.io-index)",
+ "schemamama_postgres 0.3.0 (registry+https://github.com/rust-lang/crates.io-index)",
  "semver 0.9.0 (registry+https://github.com/rust-lang/crates.io-index)",
  "serde 1.0.110 (registry+https://github.com/rust-lang/crates.io-index)",
  "serde_json 1.0.53 (registry+https://github.com/rust-lang/crates.io-index)",
@@ -520,15 +469,6 @@ dependencies = [
  "lazy_static 1.4.0 (registry+https://github.com/rust-lang/crates.io-index)",
 ]
 
-[[package]]
-name = "crypto-mac"
-version = "0.5.2"
-source = "registry+https://github.com/rust-lang/crates.io-index"
-dependencies = [
- "constant_time_eq 0.1.5 (registry+https://github.com/rust-lang/crates.io-index)",
- "generic-array 0.9.0 (registry+https://github.com/rust-lang/crates.io-index)",
-]
-
 [[package]]
 name = "crypto-mac"
 version = "0.8.0"
@@ -593,14 +533,6 @@ dependencies = [
  "syn 1.0.22 (registry+https://github.com/rust-lang/crates.io-index)",
 ]
 
-[[package]]
-name = "digest"
-version = "0.7.6"
-source = "registry+https://github.com/rust-lang/crates.io-index"
-dependencies = [
- "generic-array 0.9.0 (registry+https://github.com/rust-lang/crates.io-index)",
-]
-
 [[package]]
 name = "digest"
 version = "0.8.1"
@@ -631,7 +563,7 @@ name = "dirs-sys"
 version = "0.3.5"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 dependencies = [
- "libc 0.2.70 (registry+https://github.com/rust-lang/crates.io-index)",
+ "libc 0.2.74 (registry+https://github.com/rust-lang/crates.io-index)",
  "redox_users 0.3.4 (registry+https://github.com/rust-lang/crates.io-index)",
  "winapi 0.3.8 (registry+https://github.com/rust-lang/crates.io-index)",
 ]
@@ -725,7 +657,7 @@ source = "registry+https://github.com/rust-lang/crates.io-index"
 
 [[package]]
 name = "fallible-iterator"
-version = "0.1.6"
+version = "0.2.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 
 [[package]]
@@ -734,7 +666,7 @@ version = "0.1.15"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 dependencies = [
  "cfg-if 0.1.10 (registry+https://github.com/rust-lang/crates.io-index)",
- "libc 0.2.70 (registry+https://github.com/rust-lang/crates.io-index)",
+ "libc 0.2.74 (registry+https://github.com/rust-lang/crates.io-index)",
  "redox_syscall 0.1.56 (registry+https://github.com/rust-lang/crates.io-index)",
 ]
 
@@ -744,7 +676,7 @@ version = "0.2.10"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 dependencies = [
  "cfg-if 0.1.10 (registry+https://github.com/rust-lang/crates.io-index)",
- "libc 0.2.70 (registry+https://github.com/rust-lang/crates.io-index)",
+ "libc 0.2.74 (registry+https://github.com/rust-lang/crates.io-index)",
  "redox_syscall 0.1.56 (registry+https://github.com/rust-lang/crates.io-index)",
  "winapi 0.3.8 (registry+https://github.com/rust-lang/crates.io-index)",
 ]
@@ -756,7 +688,7 @@ source = "registry+https://github.com/rust-lang/crates.io-index"
 dependencies = [
  "cfg-if 0.1.10 (registry+https://github.com/rust-lang/crates.io-index)",
  "crc32fast 1.2.0 (registry+https://github.com/rust-lang/crates.io-index)",
- "libc 0.2.70 (registry+https://github.com/rust-lang/crates.io-index)",
+ "libc 0.2.74 (registry+https://github.com/rust-lang/crates.io-index)",
  "miniz_oxide 0.3.6 (registry+https://github.com/rust-lang/crates.io-index)",
 ]
 
@@ -783,7 +715,7 @@ name = "fs2"
 version = "0.4.3"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 dependencies = [
- "libc 0.2.70 (registry+https://github.com/rust-lang/crates.io-index)",
+ "libc 0.2.74 (registry+https://github.com/rust-lang/crates.io-index)",
  "winapi 0.3.8 (registry+https://github.com/rust-lang/crates.io-index)",
 ]
 
@@ -801,14 +733,9 @@ name = "fsevent-sys"
 version = "2.0.1"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 dependencies = [
- "libc 0.2.70 (registry+https://github.com/rust-lang/crates.io-index)",
+ "libc 0.2.74 (registry+https://github.com/rust-lang/crates.io-index)",
 ]
 
-[[package]]
-name = "fuchsia-cprng"
-version = "0.1.1"
-source = "registry+https://github.com/rust-lang/crates.io-index"
-
 [[package]]
 name = "fuchsia-zircon"
 version = "0.3.3"
@@ -926,14 +853,6 @@ dependencies = [
  "byteorder 1.3.4 (registry+https://github.com/rust-lang/crates.io-index)",
 ]
 
-[[package]]
-name = "generic-array"
-version = "0.9.0"
-source = "registry+https://github.com/rust-lang/crates.io-index"
-dependencies = [
- "typenum 1.12.0 (registry+https://github.com/rust-lang/crates.io-index)",
-]
-
 [[package]]
 name = "generic-array"
 version = "0.12.3"
@@ -957,7 +876,7 @@ version = "0.1.14"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 dependencies = [
  "cfg-if 0.1.10 (registry+https://github.com/rust-lang/crates.io-index)",
- "libc 0.2.70 (registry+https://github.com/rust-lang/crates.io-index)",
+ "libc 0.2.74 (registry+https://github.com/rust-lang/crates.io-index)",
  "wasi 0.9.0+wasi-snapshot-preview1 (registry+https://github.com/rust-lang/crates.io-index)",
 ]
 
@@ -972,7 +891,7 @@ version = "0.13.6"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 dependencies = [
  "bitflags 1.2.1 (registry+https://github.com/rust-lang/crates.io-index)",
- "libc 0.2.70 (registry+https://github.com/rust-lang/crates.io-index)",
+ "libc 0.2.74 (registry+https://github.com/rust-lang/crates.io-index)",
  "libgit2-sys 0.12.6+1.0.0 (registry+https://github.com/rust-lang/crates.io-index)",
  "log 0.4.8 (registry+https://github.com/rust-lang/crates.io-index)",
  "openssl-probe 0.1.2 (registry+https://github.com/rust-lang/crates.io-index)",
@@ -1043,28 +962,14 @@ name = "hermit-abi"
 version = "0.1.13"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 dependencies = [
- "libc 0.2.70 (registry+https://github.com/rust-lang/crates.io-index)",
+ "libc 0.2.74 (registry+https://github.com/rust-lang/crates.io-index)",
 ]
 
-[[package]]
-name = "hex"
-version = "0.2.0"
-source = "registry+https://github.com/rust-lang/crates.io-index"
-
 [[package]]
 name = "hex"
 version = "0.4.2"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 
-[[package]]
-name = "hmac"
-version = "0.5.0"
-source = "registry+https://github.com/rust-lang/crates.io-index"
-dependencies = [
- "crypto-mac 0.5.2 (registry+https://github.com/rust-lang/crates.io-index)",
- "digest 0.7.6 (registry+https://github.com/rust-lang/crates.io-index)",
-]
-
 [[package]]
 name = "hmac"
 version = "0.8.1"
@@ -1229,7 +1134,7 @@ source = "registry+https://github.com/rust-lang/crates.io-index"
 dependencies = [
  "bitflags 1.2.1 (registry+https://github.com/rust-lang/crates.io-index)",
  "inotify-sys 0.1.3 (registry+https://github.com/rust-lang/crates.io-index)",
- "libc 0.2.70 (registry+https://github.com/rust-lang/crates.io-index)",
+ "libc 0.2.74 (registry+https://github.com/rust-lang/crates.io-index)",
 ]
 
 [[package]]
@@ -1237,15 +1142,20 @@ name = "inotify-sys"
 version = "0.1.3"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 dependencies = [
- "libc 0.2.70 (registry+https://github.com/rust-lang/crates.io-index)",
+ "libc 0.2.74 (registry+https://github.com/rust-lang/crates.io-index)",
 ]
 
+[[package]]
+name = "instant"
+version = "0.1.6"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+
 [[package]]
 name = "iovec"
 version = "0.1.4"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 dependencies = [
- "libc 0.2.70 (registry+https://github.com/rust-lang/crates.io-index)",
+ "libc 0.2.74 (registry+https://github.com/rust-lang/crates.io-index)",
 ]
 
 [[package]]
@@ -1283,7 +1193,7 @@ name = "jobserver"
 version = "0.1.21"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 dependencies = [
- "libc 0.2.70 (registry+https://github.com/rust-lang/crates.io-index)",
+ "libc 0.2.74 (registry+https://github.com/rust-lang/crates.io-index)",
 ]
 
 [[package]]
@@ -1336,7 +1246,7 @@ source = "registry+https://github.com/rust-lang/crates.io-index"
 
 [[package]]
 name = "libc"
-version = "0.2.70"
+version = "0.2.74"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 
 [[package]]
@@ -1361,7 +1271,7 @@ version = "0.12.6+1.0.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 dependencies = [
  "cc 1.0.54 (registry+https://github.com/rust-lang/crates.io-index)",
- "libc 0.2.70 (registry+https://github.com/rust-lang/crates.io-index)",
+ "libc 0.2.74 (registry+https://github.com/rust-lang/crates.io-index)",
  "libz-sys 1.0.25 (registry+https://github.com/rust-lang/crates.io-index)",
  "openssl-sys 0.9.56 (registry+https://github.com/rust-lang/crates.io-index)",
  "pkg-config 0.3.17 (registry+https://github.com/rust-lang/crates.io-index)",
@@ -1373,7 +1283,7 @@ version = "1.0.25"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 dependencies = [
  "cc 1.0.54 (registry+https://github.com/rust-lang/crates.io-index)",
- "libc 0.2.70 (registry+https://github.com/rust-lang/crates.io-index)",
+ "libc 0.2.74 (registry+https://github.com/rust-lang/crates.io-index)",
  "pkg-config 0.3.17 (registry+https://github.com/rust-lang/crates.io-index)",
  "vcpkg 0.2.8 (registry+https://github.com/rust-lang/crates.io-index)",
 ]
@@ -1386,6 +1296,14 @@ dependencies = [
  "scopeguard 1.1.0 (registry+https://github.com/rust-lang/crates.io-index)",
 ]
 
+[[package]]
+name = "lock_api"
+version = "0.4.1"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+dependencies = [
+ "scopeguard 1.1.0 (registry+https://github.com/rust-lang/crates.io-index)",
+]
+
 [[package]]
 name = "log"
 version = "0.3.9"
@@ -1438,11 +1356,6 @@ name = "maybe-uninit"
 version = "2.0.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 
-[[package]]
-name = "md5"
-version = "0.3.8"
-source = "registry+https://github.com/rust-lang/crates.io-index"
-
 [[package]]
 name = "md5"
 version = "0.7.0"
@@ -1453,7 +1366,7 @@ name = "memchr"
 version = "1.0.2"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 dependencies = [
- "libc 0.2.70 (registry+https://github.com/rust-lang/crates.io-index)",
+ "libc 0.2.74 (registry+https://github.com/rust-lang/crates.io-index)",
 ]
 
 [[package]]
@@ -1482,17 +1395,6 @@ name = "mime"
 version = "0.3.16"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 
-[[package]]
-name = "mime_guess"
-version = "1.8.8"
-source = "registry+https://github.com/rust-lang/crates.io-index"
-dependencies = [
- "mime 0.2.6 (registry+https://github.com/rust-lang/crates.io-index)",
- "phf 0.7.24 (registry+https://github.com/rust-lang/crates.io-index)",
- "phf_codegen 0.7.24 (registry+https://github.com/rust-lang/crates.io-index)",
- "unicase 1.4.2 (registry+https://github.com/rust-lang/crates.io-index)",
-]
-
 [[package]]
 name = "mime_guess"
 version = "2.0.3"
@@ -1520,7 +1422,7 @@ dependencies = [
  "fuchsia-zircon-sys 0.3.3 (registry+https://github.com/rust-lang/crates.io-index)",
  "iovec 0.1.4 (registry+https://github.com/rust-lang/crates.io-index)",
  "kernel32-sys 0.2.2 (registry+https://github.com/rust-lang/crates.io-index)",
- "libc 0.2.70 (registry+https://github.com/rust-lang/crates.io-index)",
+ "libc 0.2.74 (registry+https://github.com/rust-lang/crates.io-index)",
  "log 0.4.8 (registry+https://github.com/rust-lang/crates.io-index)",
  "miow 0.2.1 (registry+https://github.com/rust-lang/crates.io-index)",
  "net2 0.2.34 (registry+https://github.com/rust-lang/crates.io-index)",
@@ -1556,7 +1458,7 @@ version = "0.6.8"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 dependencies = [
  "iovec 0.1.4 (registry+https://github.com/rust-lang/crates.io-index)",
- "libc 0.2.70 (registry+https://github.com/rust-lang/crates.io-index)",
+ "libc 0.2.74 (registry+https://github.com/rust-lang/crates.io-index)",
  "mio 0.6.22 (registry+https://github.com/rust-lang/crates.io-index)",
 ]
 
@@ -1594,29 +1496,13 @@ dependencies = [
  "sequence_trie 0.2.1 (registry+https://github.com/rust-lang/crates.io-index)",
 ]
 
-[[package]]
-name = "multipart"
-version = "0.13.6"
-source = "registry+https://github.com/rust-lang/crates.io-index"
-dependencies = [
- "buf_redux 0.6.3 (registry+https://github.com/rust-lang/crates.io-index)",
- "httparse 1.3.4 (registry+https://github.com/rust-lang/crates.io-index)",
- "log 0.3.9 (registry+https://github.com/rust-lang/crates.io-index)",
- "mime 0.2.6 (registry+https://github.com/rust-lang/crates.io-index)",
- "mime_guess 1.8.8 (registry+https://github.com/rust-lang/crates.io-index)",
- "rand 0.3.23 (registry+https://github.com/rust-lang/crates.io-index)",
- "safemem 0.2.0 (registry+https://github.com/rust-lang/crates.io-index)",
- "tempdir 0.3.7 (registry+https://github.com/rust-lang/crates.io-index)",
- "twoway 0.1.8 (registry+https://github.com/rust-lang/crates.io-index)",
-]
-
 [[package]]
 name = "native-tls"
 version = "0.2.4"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 dependencies = [
  "lazy_static 1.4.0 (registry+https://github.com/rust-lang/crates.io-index)",
- "libc 0.2.70 (registry+https://github.com/rust-lang/crates.io-index)",
+ "libc 0.2.74 (registry+https://github.com/rust-lang/crates.io-index)",
  "log 0.4.8 (registry+https://github.com/rust-lang/crates.io-index)",
  "openssl 0.10.29 (registry+https://github.com/rust-lang/crates.io-index)",
  "openssl-probe 0.1.2 (registry+https://github.com/rust-lang/crates.io-index)",
@@ -1633,7 +1519,7 @@ version = "0.2.34"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 dependencies = [
  "cfg-if 0.1.10 (registry+https://github.com/rust-lang/crates.io-index)",
- "libc 0.2.70 (registry+https://github.com/rust-lang/crates.io-index)",
+ "libc 0.2.74 (registry+https://github.com/rust-lang/crates.io-index)",
  "winapi 0.3.8 (registry+https://github.com/rust-lang/crates.io-index)",
 ]
 
@@ -1650,7 +1536,7 @@ dependencies = [
  "bitflags 1.2.1 (registry+https://github.com/rust-lang/crates.io-index)",
  "cc 1.0.54 (registry+https://github.com/rust-lang/crates.io-index)",
  "cfg-if 0.1.10 (registry+https://github.com/rust-lang/crates.io-index)",
- "libc 0.2.70 (registry+https://github.com/rust-lang/crates.io-index)",
+ "libc 0.2.74 (registry+https://github.com/rust-lang/crates.io-index)",
  "void 1.0.2 (registry+https://github.com/rust-lang/crates.io-index)",
 ]
 
@@ -1677,46 +1563,13 @@ dependencies = [
  "fsevent 0.4.0 (registry+https://github.com/rust-lang/crates.io-index)",
  "fsevent-sys 2.0.1 (registry+https://github.com/rust-lang/crates.io-index)",
  "inotify 0.7.0 (registry+https://github.com/rust-lang/crates.io-index)",
- "libc 0.2.70 (registry+https://github.com/rust-lang/crates.io-index)",
+ "libc 0.2.74 (registry+https://github.com/rust-lang/crates.io-index)",
  "mio 0.6.22 (registry+https://github.com/rust-lang/crates.io-index)",
  "mio-extras 2.0.6 (registry+https://github.com/rust-lang/crates.io-index)",
  "walkdir 2.3.1 (registry+https://github.com/rust-lang/crates.io-index)",
  "winapi 0.3.8 (registry+https://github.com/rust-lang/crates.io-index)",
 ]
 
-[[package]]
-name = "num"
-version = "0.1.42"
-source = "registry+https://github.com/rust-lang/crates.io-index"
-dependencies = [
- "num-bigint 0.1.44 (registry+https://github.com/rust-lang/crates.io-index)",
- "num-complex 0.1.43 (registry+https://github.com/rust-lang/crates.io-index)",
- "num-integer 0.1.42 (registry+https://github.com/rust-lang/crates.io-index)",
- "num-iter 0.1.40 (registry+https://github.com/rust-lang/crates.io-index)",
- "num-rational 0.1.42 (registry+https://github.com/rust-lang/crates.io-index)",
- "num-traits 0.2.11 (registry+https://github.com/rust-lang/crates.io-index)",
-]
-
-[[package]]
-name = "num-bigint"
-version = "0.1.44"
-source = "registry+https://github.com/rust-lang/crates.io-index"
-dependencies = [
- "num-integer 0.1.42 (registry+https://github.com/rust-lang/crates.io-index)",
- "num-traits 0.2.11 (registry+https://github.com/rust-lang/crates.io-index)",
- "rand 0.4.6 (registry+https://github.com/rust-lang/crates.io-index)",
- "rustc-serialize 0.3.24 (registry+https://github.com/rust-lang/crates.io-index)",
-]
-
-[[package]]
-name = "num-complex"
-version = "0.1.43"
-source = "registry+https://github.com/rust-lang/crates.io-index"
-dependencies = [
- "num-traits 0.2.11 (registry+https://github.com/rust-lang/crates.io-index)",
- "rustc-serialize 0.3.24 (registry+https://github.com/rust-lang/crates.io-index)",
-]
-
 [[package]]
 name = "num-integer"
 version = "0.1.42"
@@ -1726,27 +1579,6 @@ dependencies = [
  "num-traits 0.2.11 (registry+https://github.com/rust-lang/crates.io-index)",
 ]
 
-[[package]]
-name = "num-iter"
-version = "0.1.40"
-source = "registry+https://github.com/rust-lang/crates.io-index"
-dependencies = [
- "autocfg 1.0.0 (registry+https://github.com/rust-lang/crates.io-index)",
- "num-integer 0.1.42 (registry+https://github.com/rust-lang/crates.io-index)",
- "num-traits 0.2.11 (registry+https://github.com/rust-lang/crates.io-index)",
-]
-
-[[package]]
-name = "num-rational"
-version = "0.1.42"
-source = "registry+https://github.com/rust-lang/crates.io-index"
-dependencies = [
- "num-bigint 0.1.44 (registry+https://github.com/rust-lang/crates.io-index)",
- "num-integer 0.1.42 (registry+https://github.com/rust-lang/crates.io-index)",
- "num-traits 0.2.11 (registry+https://github.com/rust-lang/crates.io-index)",
- "rustc-serialize 0.3.24 (registry+https://github.com/rust-lang/crates.io-index)",
-]
-
 [[package]]
 name = "num-traits"
 version = "0.2.11"
@@ -1761,7 +1593,7 @@ version = "1.13.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 dependencies = [
  "hermit-abi 0.1.13 (registry+https://github.com/rust-lang/crates.io-index)",
- "libc 0.2.70 (registry+https://github.com/rust-lang/crates.io-index)",
+ "libc 0.2.74 (registry+https://github.com/rust-lang/crates.io-index)",
 ]
 
 [[package]]
@@ -1801,7 +1633,7 @@ dependencies = [
  "cfg-if 0.1.10 (registry+https://github.com/rust-lang/crates.io-index)",
  "foreign-types 0.3.2 (registry+https://github.com/rust-lang/crates.io-index)",
  "lazy_static 1.4.0 (registry+https://github.com/rust-lang/crates.io-index)",
- "libc 0.2.70 (registry+https://github.com/rust-lang/crates.io-index)",
+ "libc 0.2.74 (registry+https://github.com/rust-lang/crates.io-index)",
  "openssl-sys 0.9.56 (registry+https://github.com/rust-lang/crates.io-index)",
 ]
 
@@ -1817,7 +1649,7 @@ source = "registry+https://github.com/rust-lang/crates.io-index"
 dependencies = [
  "autocfg 1.0.0 (registry+https://github.com/rust-lang/crates.io-index)",
  "cc 1.0.54 (registry+https://github.com/rust-lang/crates.io-index)",
- "libc 0.2.70 (registry+https://github.com/rust-lang/crates.io-index)",
+ "libc 0.2.74 (registry+https://github.com/rust-lang/crates.io-index)",
  "pkg-config 0.3.17 (registry+https://github.com/rust-lang/crates.io-index)",
  "vcpkg 0.2.8 (registry+https://github.com/rust-lang/crates.io-index)",
 ]
@@ -1831,27 +1663,22 @@ dependencies = [
 ]
 
 [[package]]
-name = "params"
-version = "0.8.0"
+name = "parking_lot"
+version = "0.10.2"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 dependencies = [
- "bodyparser 0.8.0 (registry+https://github.com/rust-lang/crates.io-index)",
- "iron 0.5.1 (registry+https://github.com/rust-lang/crates.io-index)",
- "multipart 0.13.6 (registry+https://github.com/rust-lang/crates.io-index)",
- "num 0.1.42 (registry+https://github.com/rust-lang/crates.io-index)",
- "plugin 0.2.6 (registry+https://github.com/rust-lang/crates.io-index)",
- "serde_json 1.0.53 (registry+https://github.com/rust-lang/crates.io-index)",
- "tempdir 0.3.7 (registry+https://github.com/rust-lang/crates.io-index)",
- "urlencoded 0.6.0 (registry+https://github.com/rust-lang/crates.io-index)",
+ "lock_api 0.3.4 (registry+https://github.com/rust-lang/crates.io-index)",
+ "parking_lot_core 0.7.2 (registry+https://github.com/rust-lang/crates.io-index)",
 ]
 
 [[package]]
 name = "parking_lot"
-version = "0.10.2"
+version = "0.11.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 dependencies = [
- "lock_api 0.3.4 (registry+https://github.com/rust-lang/crates.io-index)",
- "parking_lot_core 0.7.2 (registry+https://github.com/rust-lang/crates.io-index)",
+ "instant 0.1.6 (registry+https://github.com/rust-lang/crates.io-index)",
+ "lock_api 0.4.1 (registry+https://github.com/rust-lang/crates.io-index)",
+ "parking_lot_core 0.8.0 (registry+https://github.com/rust-lang/crates.io-index)",
 ]
 
 [[package]]
@@ -1861,7 +1688,21 @@ source = "registry+https://github.com/rust-lang/crates.io-index"
 dependencies = [
  "cfg-if 0.1.10 (registry+https://github.com/rust-lang/crates.io-index)",
  "cloudabi 0.0.3 (registry+https://github.com/rust-lang/crates.io-index)",
- "libc 0.2.70 (registry+https://github.com/rust-lang/crates.io-index)",
+ "libc 0.2.74 (registry+https://github.com/rust-lang/crates.io-index)",
+ "redox_syscall 0.1.56 (registry+https://github.com/rust-lang/crates.io-index)",
+ "smallvec 1.4.0 (registry+https://github.com/rust-lang/crates.io-index)",
+ "winapi 0.3.8 (registry+https://github.com/rust-lang/crates.io-index)",
+]
+
+[[package]]
+name = "parking_lot_core"
+version = "0.8.0"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+dependencies = [
+ "cfg-if 0.1.10 (registry+https://github.com/rust-lang/crates.io-index)",
+ "cloudabi 0.1.0 (registry+https://github.com/rust-lang/crates.io-index)",
+ "instant 0.1.6 (registry+https://github.com/rust-lang/crates.io-index)",
+ "libc 0.2.74 (registry+https://github.com/rust-lang/crates.io-index)",
  "redox_syscall 0.1.56 (registry+https://github.com/rust-lang/crates.io-index)",
  "smallvec 1.4.0 (registry+https://github.com/rust-lang/crates.io-index)",
  "winapi 0.3.8 (registry+https://github.com/rust-lang/crates.io-index)",
@@ -1890,20 +1731,6 @@ name = "percent-encoding"
 version = "2.1.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 
-[[package]]
-name = "persistent"
-version = "0.4.0"
-source = "registry+https://github.com/rust-lang/crates.io-index"
-dependencies = [
- "iron 0.5.1 (registry+https://github.com/rust-lang/crates.io-index)",
- "plugin 0.2.6 (registry+https://github.com/rust-lang/crates.io-index)",
-]
-
-[[package]]
-name = "pest"
-version = "1.0.6"
-source = "registry+https://github.com/rust-lang/crates.io-index"
-
 [[package]]
 name = "pest"
 version = "2.1.3"
@@ -1912,16 +1739,6 @@ dependencies = [
  "ucd-trie 0.1.3 (registry+https://github.com/rust-lang/crates.io-index)",
 ]
 
-[[package]]
-name = "pest_derive"
-version = "1.0.8"
-source = "registry+https://github.com/rust-lang/crates.io-index"
-dependencies = [
- "pest 1.0.6 (registry+https://github.com/rust-lang/crates.io-index)",
- "quote 0.3.15 (registry+https://github.com/rust-lang/crates.io-index)",
- "syn 0.11.11 (registry+https://github.com/rust-lang/crates.io-index)",
-]
-
 [[package]]
 name = "pest_derive"
 version = "2.1.0"
@@ -1953,14 +1770,6 @@ dependencies = [
  "sha-1 0.8.2 (registry+https://github.com/rust-lang/crates.io-index)",
 ]
 
-[[package]]
-name = "phf"
-version = "0.7.24"
-source = "registry+https://github.com/rust-lang/crates.io-index"
-dependencies = [
- "phf_shared 0.7.24 (registry+https://github.com/rust-lang/crates.io-index)",
-]
-
 [[package]]
 name = "phf"
 version = "0.8.0"
@@ -1971,15 +1780,6 @@ dependencies = [
  "proc-macro-hack 0.5.15 (registry+https://github.com/rust-lang/crates.io-index)",
 ]
 
-[[package]]
-name = "phf_codegen"
-version = "0.7.24"
-source = "registry+https://github.com/rust-lang/crates.io-index"
-dependencies = [
- "phf_generator 0.7.24 (registry+https://github.com/rust-lang/crates.io-index)",
- "phf_shared 0.7.24 (registry+https://github.com/rust-lang/crates.io-index)",
-]
-
 [[package]]
 name = "phf_codegen"
 version = "0.8.0"
@@ -1989,15 +1789,6 @@ dependencies = [
  "phf_shared 0.8.0 (registry+https://github.com/rust-lang/crates.io-index)",
 ]
 
-[[package]]
-name = "phf_generator"
-version = "0.7.24"
-source = "registry+https://github.com/rust-lang/crates.io-index"
-dependencies = [
- "phf_shared 0.7.24 (registry+https://github.com/rust-lang/crates.io-index)",
- "rand 0.6.5 (registry+https://github.com/rust-lang/crates.io-index)",
-]
-
 [[package]]
 name = "phf_generator"
 version = "0.8.0"
@@ -2020,15 +1811,6 @@ dependencies = [
  "syn 1.0.22 (registry+https://github.com/rust-lang/crates.io-index)",
 ]
 
-[[package]]
-name = "phf_shared"
-version = "0.7.24"
-source = "registry+https://github.com/rust-lang/crates.io-index"
-dependencies = [
- "siphasher 0.2.3 (registry+https://github.com/rust-lang/crates.io-index)",
- "unicase 1.4.2 (registry+https://github.com/rust-lang/crates.io-index)",
-]
-
 [[package]]
 name = "phf_shared"
 version = "0.8.0"
@@ -2091,45 +1873,44 @@ dependencies = [
 
 [[package]]
 name = "postgres"
-version = "0.15.2"
+version = "0.17.5"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 dependencies = [
- "bytes 0.4.12 (registry+https://github.com/rust-lang/crates.io-index)",
- "fallible-iterator 0.1.6 (registry+https://github.com/rust-lang/crates.io-index)",
+ "bytes 0.5.4 (registry+https://github.com/rust-lang/crates.io-index)",
+ "fallible-iterator 0.2.0 (registry+https://github.com/rust-lang/crates.io-index)",
+ "futures 0.3.5 (registry+https://github.com/rust-lang/crates.io-index)",
  "log 0.4.8 (registry+https://github.com/rust-lang/crates.io-index)",
- "postgres-protocol 0.3.2 (registry+https://github.com/rust-lang/crates.io-index)",
- "postgres-shared 0.4.2 (registry+https://github.com/rust-lang/crates.io-index)",
- "socket2 0.3.12 (registry+https://github.com/rust-lang/crates.io-index)",
+ "tokio 0.2.22 (registry+https://github.com/rust-lang/crates.io-index)",
+ "tokio-postgres 0.5.5 (registry+https://github.com/rust-lang/crates.io-index)",
 ]
 
 [[package]]
 name = "postgres-protocol"
-version = "0.3.2"
+version = "0.5.2"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 dependencies = [
- "base64 0.6.0 (registry+https://github.com/rust-lang/crates.io-index)",
+ "base64 0.12.1 (registry+https://github.com/rust-lang/crates.io-index)",
  "byteorder 1.3.4 (registry+https://github.com/rust-lang/crates.io-index)",
- "bytes 0.4.12 (registry+https://github.com/rust-lang/crates.io-index)",
- "fallible-iterator 0.1.6 (registry+https://github.com/rust-lang/crates.io-index)",
- "generic-array 0.9.0 (registry+https://github.com/rust-lang/crates.io-index)",
- "hmac 0.5.0 (registry+https://github.com/rust-lang/crates.io-index)",
- "md5 0.3.8 (registry+https://github.com/rust-lang/crates.io-index)",
- "memchr 1.0.2 (registry+https://github.com/rust-lang/crates.io-index)",
- "rand 0.3.23 (registry+https://github.com/rust-lang/crates.io-index)",
- "sha2 0.7.1 (registry+https://github.com/rust-lang/crates.io-index)",
+ "bytes 0.5.4 (registry+https://github.com/rust-lang/crates.io-index)",
+ "fallible-iterator 0.2.0 (registry+https://github.com/rust-lang/crates.io-index)",
+ "hmac 0.8.1 (registry+https://github.com/rust-lang/crates.io-index)",
+ "md5 0.7.0 (registry+https://github.com/rust-lang/crates.io-index)",
+ "memchr 2.3.3 (registry+https://github.com/rust-lang/crates.io-index)",
+ "rand 0.7.3 (registry+https://github.com/rust-lang/crates.io-index)",
+ "sha2 0.9.1 (registry+https://github.com/rust-lang/crates.io-index)",
  "stringprep 0.1.2 (registry+https://github.com/rust-lang/crates.io-index)",
 ]
 
 [[package]]
-name = "postgres-shared"
-version = "0.4.2"
+name = "postgres-types"
+version = "0.1.2"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 dependencies = [
+ "bytes 0.5.4 (registry+https://github.com/rust-lang/crates.io-index)",
  "chrono 0.4.11 (registry+https://github.com/rust-lang/crates.io-index)",
- "fallible-iterator 0.1.6 (registry+https://github.com/rust-lang/crates.io-index)",
- "hex 0.2.0 (registry+https://github.com/rust-lang/crates.io-index)",
- "phf 0.7.24 (registry+https://github.com/rust-lang/crates.io-index)",
- "postgres-protocol 0.3.2 (registry+https://github.com/rust-lang/crates.io-index)",
+ "fallible-iterator 0.2.0 (registry+https://github.com/rust-lang/crates.io-index)",
+ "postgres-protocol 0.5.2 (registry+https://github.com/rust-lang/crates.io-index)",
+ "serde 1.0.110 (registry+https://github.com/rust-lang/crates.io-index)",
  "serde_json 1.0.53 (registry+https://github.com/rust-lang/crates.io-index)",
 ]
 
@@ -2195,7 +1976,7 @@ dependencies = [
  "chrono 0.4.11 (registry+https://github.com/rust-lang/crates.io-index)",
  "hex 0.4.2 (registry+https://github.com/rust-lang/crates.io-index)",
  "lazy_static 1.4.0 (registry+https://github.com/rust-lang/crates.io-index)",
- "libc 0.2.70 (registry+https://github.com/rust-lang/crates.io-index)",
+ "libc 0.2.74 (registry+https://github.com/rust-lang/crates.io-index)",
  "libflate 1.0.0 (registry+https://github.com/rust-lang/crates.io-index)",
 ]
 
@@ -2216,11 +1997,6 @@ name = "quick-error"
 version = "1.2.3"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 
-[[package]]
-name = "quote"
-version = "0.3.15"
-source = "registry+https://github.com/rust-lang/crates.io-index"
-
 [[package]]
 name = "quote"
 version = "1.0.6"
@@ -2241,75 +2017,26 @@ dependencies = [
 
 [[package]]
 name = "r2d2_postgres"
-version = "0.14.0"
+version = "0.16.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 dependencies = [
- "postgres 0.15.2 (registry+https://github.com/rust-lang/crates.io-index)",
- "postgres-shared 0.4.2 (registry+https://github.com/rust-lang/crates.io-index)",
+ "postgres 0.17.5 (registry+https://github.com/rust-lang/crates.io-index)",
  "r2d2 0.8.8 (registry+https://github.com/rust-lang/crates.io-index)",
 ]
 
-[[package]]
-name = "rand"
-version = "0.3.23"
-source = "registry+https://github.com/rust-lang/crates.io-index"
-dependencies = [
- "libc 0.2.70 (registry+https://github.com/rust-lang/crates.io-index)",
- "rand 0.4.6 (registry+https://github.com/rust-lang/crates.io-index)",
-]
-
-[[package]]
-name = "rand"
-version = "0.4.6"
-source = "registry+https://github.com/rust-lang/crates.io-index"
-dependencies = [
- "fuchsia-cprng 0.1.1 (registry+https://github.com/rust-lang/crates.io-index)",
- "libc 0.2.70 (registry+https://github.com/rust-lang/crates.io-index)",
- "rand_core 0.3.1 (registry+https://github.com/rust-lang/crates.io-index)",
- "rdrand 0.4.0 (registry+https://github.com/rust-lang/crates.io-index)",
- "winapi 0.3.8 (registry+https://github.com/rust-lang/crates.io-index)",
-]
-
-[[package]]
-name = "rand"
-version = "0.6.5"
-source = "registry+https://github.com/rust-lang/crates.io-index"
-dependencies = [
- "autocfg 0.1.7 (registry+https://github.com/rust-lang/crates.io-index)",
- "libc 0.2.70 (registry+https://github.com/rust-lang/crates.io-index)",
- "rand_chacha 0.1.1 (registry+https://github.com/rust-lang/crates.io-index)",
- "rand_core 0.4.2 (registry+https://github.com/rust-lang/crates.io-index)",
- "rand_hc 0.1.0 (registry+https://github.com/rust-lang/crates.io-index)",
- "rand_isaac 0.1.1 (registry+https://github.com/rust-lang/crates.io-index)",
- "rand_jitter 0.1.4 (registry+https://github.com/rust-lang/crates.io-index)",
- "rand_os 0.1.3 (registry+https://github.com/rust-lang/crates.io-index)",
- "rand_pcg 0.1.2 (registry+https://github.com/rust-lang/crates.io-index)",
- "rand_xorshift 0.1.1 (registry+https://github.com/rust-lang/crates.io-index)",
- "winapi 0.3.8 (registry+https://github.com/rust-lang/crates.io-index)",
-]
-
 [[package]]
 name = "rand"
 version = "0.7.3"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 dependencies = [
  "getrandom 0.1.14 (registry+https://github.com/rust-lang/crates.io-index)",
- "libc 0.2.70 (registry+https://github.com/rust-lang/crates.io-index)",
+ "libc 0.2.74 (registry+https://github.com/rust-lang/crates.io-index)",
  "rand_chacha 0.2.2 (registry+https://github.com/rust-lang/crates.io-index)",
  "rand_core 0.5.1 (registry+https://github.com/rust-lang/crates.io-index)",
  "rand_hc 0.2.0 (registry+https://github.com/rust-lang/crates.io-index)",
  "rand_pcg 0.2.1 (registry+https://github.com/rust-lang/crates.io-index)",
 ]
 
-[[package]]
-name = "rand_chacha"
-version = "0.1.1"
-source = "registry+https://github.com/rust-lang/crates.io-index"
-dependencies = [
- "autocfg 0.1.7 (registry+https://github.com/rust-lang/crates.io-index)",
- "rand_core 0.3.1 (registry+https://github.com/rust-lang/crates.io-index)",
-]
-
 [[package]]
 name = "rand_chacha"
 version = "0.2.2"
@@ -2319,19 +2046,6 @@ dependencies = [
  "rand_core 0.5.1 (registry+https://github.com/rust-lang/crates.io-index)",
 ]
 
-[[package]]
-name = "rand_core"
-version = "0.3.1"
-source = "registry+https://github.com/rust-lang/crates.io-index"
-dependencies = [
- "rand_core 0.4.2 (registry+https://github.com/rust-lang/crates.io-index)",
-]
-
-[[package]]
-name = "rand_core"
-version = "0.4.2"
-source = "registry+https://github.com/rust-lang/crates.io-index"
-
 [[package]]
 name = "rand_core"
 version = "0.5.1"
@@ -2340,14 +2054,6 @@ dependencies = [
  "getrandom 0.1.14 (registry+https://github.com/rust-lang/crates.io-index)",
 ]
 
-[[package]]
-name = "rand_hc"
-version = "0.1.0"
-source = "registry+https://github.com/rust-lang/crates.io-index"
-dependencies = [
- "rand_core 0.3.1 (registry+https://github.com/rust-lang/crates.io-index)",
-]
-
 [[package]]
 name = "rand_hc"
 version = "0.2.0"
@@ -2356,46 +2062,6 @@ dependencies = [
  "rand_core 0.5.1 (registry+https://github.com/rust-lang/crates.io-index)",
 ]
 
-[[package]]
-name = "rand_isaac"
-version = "0.1.1"
-source = "registry+https://github.com/rust-lang/crates.io-index"
-dependencies = [
- "rand_core 0.3.1 (registry+https://github.com/rust-lang/crates.io-index)",
-]
-
-[[package]]
-name = "rand_jitter"
-version = "0.1.4"
-source = "registry+https://github.com/rust-lang/crates.io-index"
-dependencies = [
- "libc 0.2.70 (registry+https://github.com/rust-lang/crates.io-index)",
- "rand_core 0.4.2 (registry+https://github.com/rust-lang/crates.io-index)",
- "winapi 0.3.8 (registry+https://github.com/rust-lang/crates.io-index)",
-]
-
-[[package]]
-name = "rand_os"
-version = "0.1.3"
-source = "registry+https://github.com/rust-lang/crates.io-index"
-dependencies = [
- "cloudabi 0.0.3 (registry+https://github.com/rust-lang/crates.io-index)",
- "fuchsia-cprng 0.1.1 (registry+https://github.com/rust-lang/crates.io-index)",
- "libc 0.2.70 (registry+https://github.com/rust-lang/crates.io-index)",
- "rand_core 0.4.2 (registry+https://github.com/rust-lang/crates.io-index)",
- "rdrand 0.4.0 (registry+https://github.com/rust-lang/crates.io-index)",
- "winapi 0.3.8 (registry+https://github.com/rust-lang/crates.io-index)",
-]
-
-[[package]]
-name = "rand_pcg"
-version = "0.1.2"
-source = "registry+https://github.com/rust-lang/crates.io-index"
-dependencies = [
- "autocfg 0.1.7 (registry+https://github.com/rust-lang/crates.io-index)",
- "rand_core 0.4.2 (registry+https://github.com/rust-lang/crates.io-index)",
-]
-
 [[package]]
 name = "rand_pcg"
 version = "0.2.1"
@@ -2404,14 +2070,6 @@ dependencies = [
  "rand_core 0.5.1 (registry+https://github.com/rust-lang/crates.io-index)",
 ]
 
-[[package]]
-name = "rand_xorshift"
-version = "0.1.1"
-source = "registry+https://github.com/rust-lang/crates.io-index"
-dependencies = [
- "rand_core 0.3.1 (registry+https://github.com/rust-lang/crates.io-index)",
-]
-
 [[package]]
 name = "rayon"
 version = "1.3.0"
@@ -2434,14 +2092,6 @@ dependencies = [
  "num_cpus 1.13.0 (registry+https://github.com/rust-lang/crates.io-index)",
 ]
 
-[[package]]
-name = "rdrand"
-version = "0.4.0"
-source = "registry+https://github.com/rust-lang/crates.io-index"
-dependencies = [
- "rand_core 0.3.1 (registry+https://github.com/rust-lang/crates.io-index)",
-]
-
 [[package]]
 name = "redox_syscall"
 version = "0.1.56"
@@ -2696,11 +2346,6 @@ name = "ryu"
 version = "1.0.4"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 
-[[package]]
-name = "safemem"
-version = "0.2.0"
-source = "registry+https://github.com/rust-lang/crates.io-index"
-
 [[package]]
 name = "safemem"
 version = "0.3.3"
@@ -2719,7 +2364,7 @@ name = "sass-rs"
 version = "0.2.2"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 dependencies = [
- "libc 0.2.70 (registry+https://github.com/rust-lang/crates.io-index)",
+ "libc 0.2.74 (registry+https://github.com/rust-lang/crates.io-index)",
  "sass-sys 0.4.19 (registry+https://github.com/rust-lang/crates.io-index)",
 ]
 
@@ -2729,7 +2374,7 @@ version = "0.4.19"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 dependencies = [
  "cc 1.0.54 (registry+https://github.com/rust-lang/crates.io-index)",
- "libc 0.2.70 (registry+https://github.com/rust-lang/crates.io-index)",
+ "libc 0.2.74 (registry+https://github.com/rust-lang/crates.io-index)",
  "num_cpus 1.13.0 (registry+https://github.com/rust-lang/crates.io-index)",
  "pkg-config 0.3.17 (registry+https://github.com/rust-lang/crates.io-index)",
 ]
@@ -2761,10 +2406,10 @@ dependencies = [
 
 [[package]]
 name = "schemamama_postgres"
-version = "0.2.4"
+version = "0.3.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 dependencies = [
- "postgres 0.15.2 (registry+https://github.com/rust-lang/crates.io-index)",
+ "postgres 0.17.5 (registry+https://github.com/rust-lang/crates.io-index)",
  "schemamama 0.3.0 (registry+https://github.com/rust-lang/crates.io-index)",
 ]
 
@@ -2781,7 +2426,7 @@ dependencies = [
  "bitflags 1.2.1 (registry+https://github.com/rust-lang/crates.io-index)",
  "core-foundation 0.7.0 (registry+https://github.com/rust-lang/crates.io-index)",
  "core-foundation-sys 0.7.0 (registry+https://github.com/rust-lang/crates.io-index)",
- "libc 0.2.70 (registry+https://github.com/rust-lang/crates.io-index)",
+ "libc 0.2.74 (registry+https://github.com/rust-lang/crates.io-index)",
  "security-framework-sys 0.4.3 (registry+https://github.com/rust-lang/crates.io-index)",
 ]
 
@@ -2791,7 +2436,7 @@ version = "0.4.3"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 dependencies = [
  "core-foundation-sys 0.7.0 (registry+https://github.com/rust-lang/crates.io-index)",
- "libc 0.2.70 (registry+https://github.com/rust-lang/crates.io-index)",
+ "libc 0.2.74 (registry+https://github.com/rust-lang/crates.io-index)",
 ]
 
 [[package]]
@@ -2905,17 +2550,6 @@ name = "sha1"
 version = "0.6.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 
-[[package]]
-name = "sha2"
-version = "0.7.1"
-source = "registry+https://github.com/rust-lang/crates.io-index"
-dependencies = [
- "block-buffer 0.3.3 (registry+https://github.com/rust-lang/crates.io-index)",
- "byte-tools 0.2.0 (registry+https://github.com/rust-lang/crates.io-index)",
- "digest 0.7.6 (registry+https://github.com/rust-lang/crates.io-index)",
- "fake-simd 0.1.2 (registry+https://github.com/rust-lang/crates.io-index)",
-]
-
 [[package]]
 name = "sha2"
 version = "0.9.1"
@@ -2939,14 +2573,9 @@ version = "1.2.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 dependencies = [
  "arc-swap 0.4.6 (registry+https://github.com/rust-lang/crates.io-index)",
- "libc 0.2.70 (registry+https://github.com/rust-lang/crates.io-index)",
+ "libc 0.2.74 (registry+https://github.com/rust-lang/crates.io-index)",
 ]
 
-[[package]]
-name = "siphasher"
-version = "0.2.3"
-source = "registry+https://github.com/rust-lang/crates.io-index"
-
 [[package]]
 name = "siphasher"
 version = "0.3.3"
@@ -2976,7 +2605,7 @@ version = "0.3.12"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 dependencies = [
  "cfg-if 0.1.10 (registry+https://github.com/rust-lang/crates.io-index)",
- "libc 0.2.70 (registry+https://github.com/rust-lang/crates.io-index)",
+ "libc 0.2.74 (registry+https://github.com/rust-lang/crates.io-index)",
  "redox_syscall 0.1.56 (registry+https://github.com/rust-lang/crates.io-index)",
  "winapi 0.3.8 (registry+https://github.com/rust-lang/crates.io-index)",
 ]
@@ -3136,16 +2765,6 @@ name = "subtle"
 version = "2.2.3"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 
-[[package]]
-name = "syn"
-version = "0.11.11"
-source = "registry+https://github.com/rust-lang/crates.io-index"
-dependencies = [
- "quote 0.3.15 (registry+https://github.com/rust-lang/crates.io-index)",
- "synom 0.11.3 (registry+https://github.com/rust-lang/crates.io-index)",
- "unicode-xid 0.0.4 (registry+https://github.com/rust-lang/crates.io-index)",
-]
-
 [[package]]
 name = "syn"
 version = "1.0.22"
@@ -3166,14 +2785,6 @@ dependencies = [
  "syn 1.0.22 (registry+https://github.com/rust-lang/crates.io-index)",
 ]
 
-[[package]]
-name = "synom"
-version = "0.11.3"
-source = "registry+https://github.com/rust-lang/crates.io-index"
-dependencies = [
- "unicode-xid 0.0.4 (registry+https://github.com/rust-lang/crates.io-index)",
-]
-
 [[package]]
 name = "synstructure"
 version = "0.12.3"
@@ -3193,7 +2804,7 @@ dependencies = [
  "bytesize 1.0.0 (registry+https://github.com/rust-lang/crates.io-index)",
  "chrono 0.4.11 (registry+https://github.com/rust-lang/crates.io-index)",
  "lazy_static 1.4.0 (registry+https://github.com/rust-lang/crates.io-index)",
- "libc 0.2.70 (registry+https://github.com/rust-lang/crates.io-index)",
+ "libc 0.2.74 (registry+https://github.com/rust-lang/crates.io-index)",
  "nom 3.2.1 (registry+https://github.com/rust-lang/crates.io-index)",
  "time 0.1.43 (registry+https://github.com/rust-lang/crates.io-index)",
  "winapi 0.3.8 (registry+https://github.com/rust-lang/crates.io-index)",
@@ -3205,27 +2816,18 @@ version = "0.4.26"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 dependencies = [
  "filetime 0.2.10 (registry+https://github.com/rust-lang/crates.io-index)",
- "libc 0.2.70 (registry+https://github.com/rust-lang/crates.io-index)",
+ "libc 0.2.74 (registry+https://github.com/rust-lang/crates.io-index)",
  "redox_syscall 0.1.56 (registry+https://github.com/rust-lang/crates.io-index)",
  "xattr 0.2.2 (registry+https://github.com/rust-lang/crates.io-index)",
 ]
 
-[[package]]
-name = "tempdir"
-version = "0.3.7"
-source = "registry+https://github.com/rust-lang/crates.io-index"
-dependencies = [
- "rand 0.4.6 (registry+https://github.com/rust-lang/crates.io-index)",
- "remove_dir_all 0.5.2 (registry+https://github.com/rust-lang/crates.io-index)",
-]
-
 [[package]]
 name = "tempfile"
 version = "3.1.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 dependencies = [
  "cfg-if 0.1.10 (registry+https://github.com/rust-lang/crates.io-index)",
- "libc 0.2.70 (registry+https://github.com/rust-lang/crates.io-index)",
+ "libc 0.2.74 (registry+https://github.com/rust-lang/crates.io-index)",
  "rand 0.7.3 (registry+https://github.com/rust-lang/crates.io-index)",
  "redox_syscall 0.1.56 (registry+https://github.com/rust-lang/crates.io-index)",
  "remove_dir_all 0.5.2 (registry+https://github.com/rust-lang/crates.io-index)",
@@ -3297,7 +2899,7 @@ name = "time"
 version = "0.1.43"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 dependencies = [
- "libc 0.2.70 (registry+https://github.com/rust-lang/crates.io-index)",
+ "libc 0.2.74 (registry+https://github.com/rust-lang/crates.io-index)",
  "winapi 0.3.8 (registry+https://github.com/rust-lang/crates.io-index)",
 ]
 
@@ -3307,7 +2909,7 @@ version = "0.2.16"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 dependencies = [
  "cfg-if 0.1.10 (registry+https://github.com/rust-lang/crates.io-index)",
- "libc 0.2.70 (registry+https://github.com/rust-lang/crates.io-index)",
+ "libc 0.2.74 (registry+https://github.com/rust-lang/crates.io-index)",
  "standback 0.2.8 (registry+https://github.com/rust-lang/crates.io-index)",
  "stdweb 0.4.20 (registry+https://github.com/rust-lang/crates.io-index)",
  "time-macros 0.1.0 (registry+https://github.com/rust-lang/crates.io-index)",
@@ -3355,7 +2957,7 @@ dependencies = [
  "futures-core 0.3.5 (registry+https://github.com/rust-lang/crates.io-index)",
  "iovec 0.1.4 (registry+https://github.com/rust-lang/crates.io-index)",
  "lazy_static 1.4.0 (registry+https://github.com/rust-lang/crates.io-index)",
- "libc 0.2.70 (registry+https://github.com/rust-lang/crates.io-index)",
+ "libc 0.2.74 (registry+https://github.com/rust-lang/crates.io-index)",
  "memchr 2.3.3 (registry+https://github.com/rust-lang/crates.io-index)",
  "mio 0.6.22 (registry+https://github.com/rust-lang/crates.io-index)",
  "mio-named-pipes 0.1.6 (registry+https://github.com/rust-lang/crates.io-index)",
@@ -3378,6 +2980,27 @@ dependencies = [
  "syn 1.0.22 (registry+https://github.com/rust-lang/crates.io-index)",
 ]
 
+[[package]]
+name = "tokio-postgres"
+version = "0.5.5"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+dependencies = [
+ "async-trait 0.1.36 (registry+https://github.com/rust-lang/crates.io-index)",
+ "byteorder 1.3.4 (registry+https://github.com/rust-lang/crates.io-index)",
+ "bytes 0.5.4 (registry+https://github.com/rust-lang/crates.io-index)",
+ "fallible-iterator 0.2.0 (registry+https://github.com/rust-lang/crates.io-index)",
+ "futures 0.3.5 (registry+https://github.com/rust-lang/crates.io-index)",
+ "log 0.4.8 (registry+https://github.com/rust-lang/crates.io-index)",
+ "parking_lot 0.11.0 (registry+https://github.com/rust-lang/crates.io-index)",
+ "percent-encoding 2.1.0 (registry+https://github.com/rust-lang/crates.io-index)",
+ "phf 0.8.0 (registry+https://github.com/rust-lang/crates.io-index)",
+ "pin-project-lite 0.1.5 (registry+https://github.com/rust-lang/crates.io-index)",
+ "postgres-protocol 0.5.2 (registry+https://github.com/rust-lang/crates.io-index)",
+ "postgres-types 0.1.2 (registry+https://github.com/rust-lang/crates.io-index)",
+ "tokio 0.2.22 (registry+https://github.com/rust-lang/crates.io-index)",
+ "tokio-util 0.3.1 (registry+https://github.com/rust-lang/crates.io-index)",
+]
+
 [[package]]
 name = "tokio-tls"
 version = "0.3.1"
@@ -3430,10 +3053,11 @@ source = "registry+https://github.com/rust-lang/crates.io-index"
 
 [[package]]
 name = "twoway"
-version = "0.1.8"
+version = "0.2.1"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 dependencies = [
  "memchr 2.3.3 (registry+https://github.com/rust-lang/crates.io-index)",
+ "unchecked-index 0.2.2 (registry+https://github.com/rust-lang/crates.io-index)",
 ]
 
 [[package]]
@@ -3464,6 +3088,11 @@ name = "ucd-trie"
 version = "0.1.3"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 
+[[package]]
+name = "unchecked-index"
+version = "0.2.2"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+
 [[package]]
 name = "unic-char-property"
 version = "0.9.0"
@@ -3550,11 +3179,6 @@ name = "unicode-width"
 version = "0.1.7"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 
-[[package]]
-name = "unicode-xid"
-version = "0.0.4"
-source = "registry+https://github.com/rust-lang/crates.io-index"
-
 [[package]]
 name = "unicode-xid"
 version = "0.2.0"
@@ -3599,17 +3223,6 @@ dependencies = [
  "serde 1.0.110 (registry+https://github.com/rust-lang/crates.io-index)",
 ]
 
-[[package]]
-name = "urlencoded"
-version = "0.6.0"
-source = "registry+https://github.com/rust-lang/crates.io-index"
-dependencies = [
- "bodyparser 0.8.0 (registry+https://github.com/rust-lang/crates.io-index)",
- "iron 0.5.1 (registry+https://github.com/rust-lang/crates.io-index)",
- "plugin 0.2.6 (registry+https://github.com/rust-lang/crates.io-index)",
- "url 1.7.2 (registry+https://github.com/rust-lang/crates.io-index)",
-]
-
 [[package]]
 name = "utf-8"
 version = "0.7.5"
@@ -3794,7 +3407,7 @@ name = "xattr"
 version = "0.2.2"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 dependencies = [
- "libc 0.2.70 (registry+https://github.com/rust-lang/crates.io-index)",
+ "libc 0.2.74 (registry+https://github.com/rust-lang/crates.io-index)",
 ]
 
 [[package]]
@@ -3820,7 +3433,7 @@ name = "zstd-safe"
 version = "2.0.4+zstd.1.4.5"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 dependencies = [
- "libc 0.2.70 (registry+https://github.com/rust-lang/crates.io-index)",
+ "libc 0.2.74 (registry+https://github.com/rust-lang/crates.io-index)",
  "zstd-sys 1.4.16+zstd.1.4.5 (registry+https://github.com/rust-lang/crates.io-index)",
 ]
 
@@ -3832,7 +3445,7 @@ dependencies = [
  "cc 1.0.54 (registry+https://github.com/rust-lang/crates.io-index)",
  "glob 0.3.0 (registry+https://github.com/rust-lang/crates.io-index)",
  "itertools 0.9.0 (registry+https://github.com/rust-lang/crates.io-index)",
- "libc 0.2.70 (registry+https://github.com/rust-lang/crates.io-index)",
+ "libc 0.2.74 (registry+https://github.com/rust-lang/crates.io-index)",
 ]
 
 [metadata]
@@ -3846,28 +3459,21 @@ dependencies = [
 "checksum arrayvec 0.5.1 (registry+https://github.com/rust-lang/crates.io-index)" = "cff77d8686867eceff3105329d4698d96c2391c176d5d03adc90c7389162b5b8"
 "checksum async-trait 0.1.36 (registry+https://github.com/rust-lang/crates.io-index)" = "a265e3abeffdce30b2e26b7a11b222fe37c6067404001b434101457d0385eb92"
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 "checksum sass-rs 0.2.2 (registry+https://github.com/rust-lang/crates.io-index)" = "cabcf7c6e55053f359911187ac401409aad2dc14338cae972dec266fee486abd"
@@ -4135,7 +3709,7 @@ dependencies = [
 "checksum schannel 0.1.19 (registry+https://github.com/rust-lang/crates.io-index)" = "8f05ba609c234e60bee0d547fe94a4c7e9da733d1c962cf6e59efa4cd9c8bc75"
 "checksum scheduled-thread-pool 0.2.4 (registry+https://github.com/rust-lang/crates.io-index)" = "0988d7fdf88d5e5fcf5923a0f1e8ab345f3e98ab4bc6bc45a2d5ff7f7458fbf6"
 "checksum schemamama 0.3.0 (registry+https://github.com/rust-lang/crates.io-index)" = "1f726d3b10198a91b545c12e55775ddf4abb681056aa62adf75ed00b68855ef9"
-"checksum schemamama_postgres 0.2.4 (registry+https://github.com/rust-lang/crates.io-index)" = "a015da3208854a2e1cf94da0e1bf2882b9464690b5748444543b5383ed2abb6c"
+"checksum schemamama_postgres 0.3.0 (registry+https://github.com/rust-lang/crates.io-index)" = "0a5da098f7ee922d0c89a4416bf042e242e79f4966d40bf497f52849f2ffedda"
 "checksum scopeguard 1.1.0 (registry+https://github.com/rust-lang/crates.io-index)" = "d29ab0c6d3fc0ee92fe66e2d99f700eab17a8d57d1c1d3b748380fb20baa78cd"
 "checksum security-framework 0.4.4 (registry+https://github.com/rust-lang/crates.io-index)" = "64808902d7d99f78eaddd2b4e2509713babc3dc3c85ad6f4c447680f3c01e535"
 "checksum security-framework-sys 0.4.3 (registry+https://github.com/rust-lang/crates.io-index)" = "17bf11d99252f512695eb468de5516e5cf75455521e69dfe343f3b74e4748405"
@@ -4151,11 +3725,9 @@ dependencies = [
 "checksum servo_arc 0.1.1 (registry+https://github.com/rust-lang/crates.io-index)" = "d98238b800e0d1576d8b6e3de32827c2d74bee68bb97748dcf5071fb53965432"
 "checksum sha-1 0.8.2 (registry+https://github.com/rust-lang/crates.io-index)" = "f7d94d0bede923b3cea61f3f1ff57ff8cdfd77b400fb8f9998949e0cf04163df"
 "checksum sha1 0.6.0 (registry+https://github.com/rust-lang/crates.io-index)" = "2579985fda508104f7587689507983eadd6a6e84dd35d6d115361f530916fa0d"
-"checksum sha2 0.7.1 (registry+https://github.com/rust-lang/crates.io-index)" = "9eb6be24e4c23a84d7184280d2722f7f2731fcdd4a9d886efbfe4413e4847ea0"
 "checksum sha2 0.9.1 (registry+https://github.com/rust-lang/crates.io-index)" = "2933378ddfeda7ea26f48c555bdad8bb446bf8a3d17832dc83e380d444cfb8c1"
 "checksum shlex 0.1.1 (registry+https://github.com/rust-lang/crates.io-index)" = "7fdf1b9db47230893d76faad238fd6097fd6d6a9245cd7a4d90dbd639536bbd2"
 "checksum signal-hook-registry 1.2.0 (registry+https://github.com/rust-lang/crates.io-index)" = "94f478ede9f64724c5d173d7bb56099ec3e2d9fc2774aac65d34b8b890405f41"
-"checksum siphasher 0.2.3 (registry+https://github.com/rust-lang/crates.io-index)" = "0b8de496cf83d4ed58b6be86c3a275b8602f6ffe98d3024a869e124147a9a3ac"
 "checksum siphasher 0.3.3 (registry+https://github.com/rust-lang/crates.io-index)" = "fa8f3741c7372e75519bd9346068370c9cdaabcc1f9599cbcf2a2719352286b7"
 "checksum slab 0.4.2 (registry+https://github.com/rust-lang/crates.io-index)" = "c111b5bd5695e56cffe5129854aa230b39c93a305372fdbb2668ca2394eea9f8"
 "checksum slug 0.1.1 (registry+https://github.com/rust-lang/crates.io-index)" = "39af1ce888a1253c8b9fcfa36626557650fb487c013620a743262d2769a3e9f3"
@@ -4178,14 +3750,11 @@ dependencies = [
 "checksum strum 0.18.0 (registry+https://github.com/rust-lang/crates.io-index)" = "57bd81eb48f4c437cadc685403cad539345bf703d78e63707418431cecd4522b"
 "checksum strum_macros 0.18.0 (registry+https://github.com/rust-lang/crates.io-index)" = "87c85aa3f8ea653bfd3ddf25f7ee357ee4d204731f6aa9ad04002306f6e2774c"
 "checksum subtle 2.2.3 (registry+https://github.com/rust-lang/crates.io-index)" = "502d53007c02d7605a05df1c1a73ee436952781653da5d0bf57ad608f66932c1"
-"checksum syn 0.11.11 (registry+https://github.com/rust-lang/crates.io-index)" = "d3b891b9015c88c576343b9b3e41c2c11a51c219ef067b264bd9c8aa9b441dad"
 "checksum syn 1.0.22 (registry+https://github.com/rust-lang/crates.io-index)" = "1425de3c33b0941002740a420b1a906a350b88d08b82b2c8a01035a3f9447bac"
 "checksum syn-mid 0.5.0 (registry+https://github.com/rust-lang/crates.io-index)" = "7be3539f6c128a931cf19dcee741c1af532c7fd387baa739c03dd2e96479338a"
-"checksum synom 0.11.3 (registry+https://github.com/rust-lang/crates.io-index)" = "a393066ed9010ebaed60b9eafa373d4b1baac186dd7e008555b0f702b51945b6"
 "checksum synstructure 0.12.3 (registry+https://github.com/rust-lang/crates.io-index)" = "67656ea1dc1b41b1451851562ea232ec2e5a80242139f7e679ceccfb5d61f545"
 "checksum systemstat 0.1.5 (registry+https://github.com/rust-lang/crates.io-index)" = "2078da8d09c6202bffd5e075946e65bfad5ce2cfa161edb15c5f014a8440adee"
 "checksum tar 0.4.26 (registry+https://github.com/rust-lang/crates.io-index)" = "b3196bfbffbba3e57481b6ea32249fbaf590396a52505a2615adbb79d9d826d3"
-"checksum tempdir 0.3.7 (registry+https://github.com/rust-lang/crates.io-index)" = "15f2b5fb00ccdf689e0149d1b1b3c03fead81c2b37735d812fa8bddbbf41b6d8"
 "checksum tempfile 3.1.0 (registry+https://github.com/rust-lang/crates.io-index)" = "7a6e24d9338a0a5be79593e2fa15a648add6138caa803e2d5bc782c371732ca9"
 "checksum tendril 0.4.1 (registry+https://github.com/rust-lang/crates.io-index)" = "707feda9f2582d5d680d733e38755547a3e8fb471e7ba11452ecfd9ce93a5d3b"
 "checksum tera 1.3.1 (registry+https://github.com/rust-lang/crates.io-index)" = "55df25c7768a0fb9f165931366eb0f21587c407061e1e69c1f5c2b495adfd9bb"
@@ -4200,6 +3769,7 @@ dependencies = [
 "checksum tinytemplate 1.1.0 (registry+https://github.com/rust-lang/crates.io-index)" = "6d3dc76004a03cec1c5932bca4cdc2e39aaa798e3f82363dd94f9adf6098c12f"
 "checksum tokio 0.2.22 (registry+https://github.com/rust-lang/crates.io-index)" = "5d34ca54d84bf2b5b4d7d31e901a8464f7b60ac145a284fba25ceb801f2ddccd"
 "checksum tokio-macros 0.2.5 (registry+https://github.com/rust-lang/crates.io-index)" = "f0c3acc6aa564495a0f2e1d59fab677cd7f81a19994cfc7f3ad0e64301560389"
+"checksum tokio-postgres 0.5.5 (registry+https://github.com/rust-lang/crates.io-index)" = "55a2482c9fe4dd481723cf5c0616f34afc710e55dcda0944e12e7b3316117892"
 "checksum tokio-tls 0.3.1 (registry+https://github.com/rust-lang/crates.io-index)" = "9a70f4fcd7b3b24fb194f837560168208f669ca8cb70d0c4b862944452396343"
 "checksum tokio-util 0.3.1 (registry+https://github.com/rust-lang/crates.io-index)" = "be8242891f2b6cbef26a2d7e8605133c2c554cd35b3e4948ea892d6d68436499"
 "checksum toml 0.5.6 (registry+https://github.com/rust-lang/crates.io-index)" = "ffc92d160b1eef40665be3a05630d003936a3bc7da7421277846c2613e92c71a"
@@ -4207,12 +3777,13 @@ dependencies = [
 "checksum traitobject 0.1.0 (registry+https://github.com/rust-lang/crates.io-index)" = "efd1f82c56340fdf16f2a953d7bda4f8fdffba13d93b00844c25572110b26079"
 "checksum try-lock 0.2.2 (registry+https://github.com/rust-lang/crates.io-index)" = "e604eb7b43c06650e854be16a2a03155743d3752dd1c943f6829e26b7a36e382"
 "checksum ttf-parser 0.6.1 (registry+https://github.com/rust-lang/crates.io-index)" = "52fbe7769f5af5d7d25aea74b9443b64e544a5ffb4d2b2968295ddea934f1a06"
-"checksum twoway 0.1.8 (registry+https://github.com/rust-lang/crates.io-index)" = "59b11b2b5241ba34be09c3cc85a36e56e48f9888862e19cedf23336d35316ed1"
+"checksum twoway 0.2.1 (registry+https://github.com/rust-lang/crates.io-index)" = "6b40075910de3a912adbd80b5d8bad6ad10a23eeb1f5bf9d4006839e899ba5bc"
 "checksum typeable 0.1.2 (registry+https://github.com/rust-lang/crates.io-index)" = "1410f6f91f21d1612654e7cc69193b0334f909dcf2c790c4826254fbb86f8887"
 "checksum typed-arena 1.7.0 (registry+https://github.com/rust-lang/crates.io-index)" = "a9b2228007eba4120145f785df0f6c92ea538f5a3635a612ecf4e334c8c1446d"
 "checksum typemap 0.3.3 (registry+https://github.com/rust-lang/crates.io-index)" = "653be63c80a3296da5551e1bfd2cca35227e13cdd08c6668903ae2f4f77aa1f6"
 "checksum typenum 1.12.0 (registry+https://github.com/rust-lang/crates.io-index)" = "373c8a200f9e67a0c95e62a4f52fbf80c23b4381c05a17845531982fa99e6b33"
 "checksum ucd-trie 0.1.3 (registry+https://github.com/rust-lang/crates.io-index)" = "56dee185309b50d1f11bfedef0fe6d036842e3fb77413abef29f8f8d1c5d4c1c"
+"checksum unchecked-index 0.2.2 (registry+https://github.com/rust-lang/crates.io-index)" = "eeba86d422ce181a719445e51872fa30f1f7413b62becb52e95ec91aa262d85c"
 "checksum unic-char-property 0.9.0 (registry+https://github.com/rust-lang/crates.io-index)" = "a8c57a407d9b6fa02b4795eb81c5b6652060a15a7903ea981f3d723e6c0be221"
 "checksum unic-char-range 0.9.0 (registry+https://github.com/rust-lang/crates.io-index)" = "0398022d5f700414f6b899e10b8348231abf9173fa93144cbc1a43b9793c1fbc"
 "checksum unic-common 0.9.0 (registry+https://github.com/rust-lang/crates.io-index)" = "80d7ff825a6a654ee85a63e80f92f054f904f21e7d12da4e22f9834a4aaa35bc"
@@ -4225,14 +3796,12 @@ dependencies = [
 "checksum unicode-normalization 0.1.12 (registry+https://github.com/rust-lang/crates.io-index)" = "5479532badd04e128284890390c1e876ef7a993d0570b3597ae43dfa1d59afa4"
 "checksum unicode-segmentation 1.6.0 (registry+https://github.com/rust-lang/crates.io-index)" = "e83e153d1053cbb5a118eeff7fd5be06ed99153f00dbcd8ae310c5fb2b22edc0"
 "checksum unicode-width 0.1.7 (registry+https://github.com/rust-lang/crates.io-index)" = "caaa9d531767d1ff2150b9332433f32a24622147e5ebb1f26409d5da67afd479"
-"checksum unicode-xid 0.0.4 (registry+https://github.com/rust-lang/crates.io-index)" = "8c1f860d7d29cf02cb2f3f359fd35991af3d30bac52c57d265a3c461074cb4dc"
 "checksum unicode-xid 0.2.0 (registry+https://github.com/rust-lang/crates.io-index)" = "826e7639553986605ec5979c7dd957c7895e93eabed50ab2ffa7f6128a75097c"
 "checksum unicode_categories 0.1.1 (registry+https://github.com/rust-lang/crates.io-index)" = "39ec24b3121d976906ece63c9daad25b85969647682eee313cb5779fdd69e14e"
 "checksum unidecode 0.2.0 (registry+https://github.com/rust-lang/crates.io-index)" = "d2adb95ee07cd579ed18131f2d9e7a17c25a4b76022935c7f2460d2bfae89fd2"
 "checksum unsafe-any 0.4.2 (registry+https://github.com/rust-lang/crates.io-index)" = "f30360d7979f5e9c6e6cea48af192ea8fab4afb3cf72597154b8f08935bc9c7f"
 "checksum url 1.7.2 (registry+https://github.com/rust-lang/crates.io-index)" = "dd4e7c0d531266369519a4aa4f399d748bd37043b00bde1e4ff1f60a120b355a"
 "checksum url 2.1.1 (registry+https://github.com/rust-lang/crates.io-index)" = "829d4a8476c35c9bf0bbce5a3b23f4106f79728039b726d292bb93bc106787cb"
-"checksum urlencoded 0.6.0 (registry+https://github.com/rust-lang/crates.io-index)" = "0a52f50139118b60ae91af08bf15ed158817d34b91b9d24c11ffbe21195d33e3"
 "checksum utf-8 0.7.5 (registry+https://github.com/rust-lang/crates.io-index)" = "05e42f7c18b8f902290b009cde6d651262f956c98bc51bca4cd1d511c9cd85c7"
 "checksum vcpkg 0.2.8 (registry+https://github.com/rust-lang/crates.io-index)" = "3fc439f2794e98976c88a2a2dafce96b930fe8010b0a256b3c2199a773933168"
 "checksum vec_map 0.8.2 (registry+https://github.com/rust-lang/crates.io-index)" = "f1bddf1187be692e79c5ffeab891132dfb0f236ed36a43c7ed39f1165ee20191"
diff --git a/Cargo.toml b/Cargo.toml
index ba3d01646..ae52fd984 100644
--- a/Cargo.toml
+++ b/Cargo.toml
@@ -18,18 +18,18 @@ semver = { version = "0.9", features = ["serde"] }
 slug = "=0.1.1"
 env_logger = "0.7"
 r2d2 = "0.8"
-r2d2_postgres = "0.14"
+r2d2_postgres = "0.16"
 # iron needs url@1, but it reexports it as iron::url, so we can start using
 # url@2 for other usecases
 url = { version = "2.1.1", features = ["serde"] }
 badge = { path = "src/web/badge" }
 backtrace = "0.3"
 failure = { version = "0.1.3", features = ["backtrace"] }
-comrak = { version = "0.3", default-features = false }
+comrak = { version = "0.8", default-features = false }
 toml = "0.5"
 kuchiki = "0.8"
 schemamama = "0.3"
-schemamama_postgres = "0.2"
+schemamama_postgres = "0.3"
 systemstat = "0.1.4"
 prometheus = { version = "0.7.0", default-features = false }
 rustwide = "0.7.1"
@@ -56,7 +56,6 @@ serde_json = "1.0"
 # iron dependencies
 iron = "0.5"
 router = "0.5"
-params = "0.8"
 staticfile = { version = "0.4", features = [ "cache" ] }
 tempfile = "3.1.0"
 
@@ -73,8 +72,8 @@ chrono = { version = "0.4.11", features = ["serde"] }
 time = "0.1" # TODO: Remove once `iron` is removed
 
 [dependencies.postgres]
-version = "0.15"
-features = ["with-chrono", "with-serde_json"]
+version = "0.17"
+features = ["with-chrono-0_4", "with-serde_json-1"]
 
 [target.'cfg(target_os = "linux")'.dependencies]
 # Process information
diff --git a/src/bin/cratesfyi.rs b/src/bin/cratesfyi.rs
index ef779ba68..bc6201bc7 100644
--- a/src/bin/cratesfyi.rs
+++ b/src/bin/cratesfyi.rs
@@ -216,12 +216,12 @@ impl PrioritySubcommand {
     pub fn handle_args(self, ctx: Context) -> Result<(), Error> {
         match self {
             Self::Set { pattern, priority } => {
-                set_crate_priority(&*ctx.conn()?, &pattern, priority)
+                set_crate_priority(&mut *ctx.conn()?, &pattern, priority)
                     .context("Could not set pattern's priority")?;
             }
 
             Self::Remove { pattern } => {
-                if let Some(priority) = remove_crate_priority(&*ctx.conn()?, &pattern)
+                if let Some(priority) = remove_crate_priority(&mut *ctx.conn()?, &pattern)
                     .context("Could not remove pattern's priority")?
                 {
                     println!("Removed pattern with priority {}", priority);
@@ -367,7 +367,7 @@ impl BuildSubcommand {
 
             Self::UpdateToolchain { only_first_time } => {
                 if only_first_time {
-                    let conn = ctx
+                    let mut conn = ctx
                         .pool()?
                         .get()
                         .context("failed to get a database connection")?;
@@ -449,7 +449,8 @@ impl DatabaseSubcommand {
     pub fn handle_args(self, ctx: Context) -> Result<(), Error> {
         match self {
             Self::Migrate { version } => {
-                db::migrate(version, &*ctx.conn()?).context("Failed to run database migrations")?;
+                db::migrate(version, &mut *ctx.conn()?)
+                    .context("Failed to run database migrations")?;
             }
 
             Self::UpdateGithubFields => {
@@ -461,7 +462,7 @@ impl DatabaseSubcommand {
                 let index = Index::new(&ctx.config()?.registry_index_path)?;
 
                 db::update_crate_data_in_database(
-                    &*ctx.conn()?,
+                    &mut *ctx.conn()?,
                     &name,
                     &index.api().get_crate_data(&name)?,
                 )?;
@@ -473,16 +474,18 @@ impl DatabaseSubcommand {
             }
 
             // FIXME: This is actually util command not database
-            Self::UpdateReleaseActivity => cratesfyi::utils::update_release_activity(&*ctx.conn()?)
-                .context("Failed to update release activity")?,
+            Self::UpdateReleaseActivity => {
+                cratesfyi::utils::update_release_activity(&mut *ctx.conn()?)
+                    .context("Failed to update release activity")?
+            }
 
             Self::Delete {
                 command: DeleteSubcommand::Version { name, version },
-            } => db::delete_version(&*ctx.conn()?, &*ctx.storage()?, &name, &version)
+            } => db::delete_version(&mut *ctx.conn()?, &*ctx.storage()?, &name, &version)
                 .context("failed to delete the crate")?,
             Self::Delete {
                 command: DeleteSubcommand::Crate { name },
-            } => db::delete_crate(&*ctx.conn()?, &*ctx.storage()?, &name)
+            } => db::delete_crate(&mut *ctx.conn()?, &*ctx.storage()?, &name)
                 .context("failed to delete the crate")?,
             Self::Blacklist { command } => command.handle_args(ctx)?,
         }
@@ -512,19 +515,19 @@ enum BlacklistSubcommand {
 
 impl BlacklistSubcommand {
     fn handle_args(self, ctx: Context) -> Result<(), Error> {
-        let conn = &*ctx.conn()?;
+        let mut conn = &mut *ctx.conn()?;
         match self {
             Self::List => {
-                let crates = db::blacklist::list_crates(&conn)
+                let crates = db::blacklist::list_crates(&mut conn)
                     .context("failed to list crates on blacklist")?;
 
                 println!("{}", crates.join("\n"));
             }
 
-            Self::Add { crate_name } => db::blacklist::add_crate(&conn, &crate_name)
+            Self::Add { crate_name } => db::blacklist::add_crate(&mut conn, &crate_name)
                 .context("failed to add crate to blacklist")?,
 
-            Self::Remove { crate_name } => db::blacklist::remove_crate(&conn, &crate_name)
+            Self::Remove { crate_name } => db::blacklist::remove_crate(&mut conn, &crate_name)
                 .context("failed to remove crate from blacklist")?,
         }
         Ok(())
@@ -602,7 +605,10 @@ impl Context {
 
     fn conn(
         &self,
-    ) -> Result<r2d2::PooledConnection<r2d2_postgres::PostgresConnectionManager>, Error> {
+    ) -> Result<
+        r2d2::PooledConnection<r2d2_postgres::PostgresConnectionManager<postgres::NoTls>>,
+        Error,
+    > {
         Ok(self.pool()?.get()?)
     }
 }
diff --git a/src/build_queue.rs b/src/build_queue.rs
index 14066ff57..a5490abc6 100644
--- a/src/build_queue.rs
+++ b/src/build_queue.rs
@@ -39,7 +39,7 @@ impl BuildQueue {
             "SELECT COUNT(*) FROM queue WHERE attempt < $1;",
             &[&self.max_attempts],
         )?;
-        Ok(res.get(0).get::<_, i64>(0) as usize)
+        Ok(res[0].get::<_, i64>(0) as usize)
     }
 
     pub(crate) fn prioritized_count(&self) -> Result<usize> {
@@ -47,7 +47,7 @@ impl BuildQueue {
             "SELECT COUNT(*) FROM queue WHERE attempt < $1 AND priority <= 0;",
             &[&self.max_attempts],
         )?;
-        Ok(res.get(0).get::<_, i64>(0) as usize)
+        Ok(res[0].get::<_, i64>(0) as usize)
     }
 
     pub(crate) fn failed_count(&self) -> Result<usize> {
@@ -55,7 +55,7 @@ impl BuildQueue {
             "SELECT COUNT(*) FROM queue WHERE attempt >= $1;",
             &[&self.max_attempts],
         )?;
-        Ok(res.get(0).get::<_, i64>(0) as usize)
+        Ok(res[0].get::<_, i64>(0) as usize)
     }
 
     pub(crate) fn queued_crates(&self) -> Result<Vec<QueuedCrate>> {
@@ -82,7 +82,7 @@ impl BuildQueue {
         &self,
         f: impl FnOnce(&QueuedCrate) -> Result<()>,
     ) -> Result<()> {
-        let conn = self.db.get()?;
+        let mut conn = self.db.get()?;
 
         let queued = self.queued_crates()?;
         let to_process = match queued.get(0) {
@@ -102,7 +102,7 @@ impl BuildQueue {
                     "UPDATE queue SET attempt = attempt + 1 WHERE id = $1 RETURNING attempt;",
                     &[&to_process.id],
                 )?;
-                let attempt: i32 = rows.get(0).get(0);
+                let attempt: i32 = rows[0].get(0);
 
                 if attempt >= self.max_attempts {
                     crate::web::metrics::FAILED_BUILDS.inc();
diff --git a/src/db/add_package.rs b/src/db/add_package.rs
index 6eab47aaf..90d8de0e6 100644
--- a/src/db/add_package.rs
+++ b/src/db/add_package.rs
@@ -12,7 +12,7 @@ use crate::{
     utils::MetadataPackage,
 };
 use log::{debug, info};
-use postgres::Connection;
+use postgres::Client;
 use regex::Regex;
 use serde_json::Value;
 use slug::slugify;
@@ -25,7 +25,7 @@ use slug::slugify;
 /// not the files generated by rustdoc.
 #[allow(clippy::too_many_arguments)]
 pub(crate) fn add_package_into_database(
-    conn: &Connection,
+    conn: &mut Client,
     metadata_pkg: &MetadataPackage,
     source_dir: &Path,
     res: &BuildResult,
@@ -38,7 +38,7 @@ pub(crate) fn add_package_into_database(
     compression_algorithms: std::collections::HashSet<CompressionAlgorithm>,
 ) -> Result<i32> {
     debug!("Adding package into database");
-    let crate_id = initialize_package_in_database(&conn, metadata_pkg)?;
+    let crate_id = initialize_package_in_database(conn, metadata_pkg)?;
     let dependencies = convert_dependencies(metadata_pkg);
     let rustdoc = get_rustdoc(metadata_pkg, source_dir).unwrap_or(None);
     let readme = get_readme(metadata_pkg, source_dir).unwrap_or(None);
@@ -113,11 +113,11 @@ pub(crate) fn add_package_into_database(
         ],
     )?;
 
-    let release_id: i32 = rows.get(0).get(0);
+    let release_id: i32 = rows[0].get(0);
 
-    add_keywords_into_database(&conn, &metadata_pkg, release_id)?;
-    add_authors_into_database(&conn, &metadata_pkg, release_id)?;
-    add_compression_into_database(&conn, compression_algorithms.into_iter(), release_id)?;
+    add_keywords_into_database(conn, &metadata_pkg, release_id)?;
+    add_authors_into_database(conn, &metadata_pkg, release_id)?;
+    add_compression_into_database(conn, compression_algorithms.into_iter(), release_id)?;
 
     // Update the crates table with the new release
     conn.execute(
@@ -132,7 +132,7 @@ pub(crate) fn add_package_into_database(
 
 /// Adds a build into database
 pub(crate) fn add_build_into_database(
-    conn: &Connection,
+    conn: &mut Client,
     release_id: i32,
     res: &BuildResult,
 ) -> Result<i32> {
@@ -151,10 +151,10 @@ pub(crate) fn add_build_into_database(
             &res.build_log,
         ],
     )?;
-    Ok(rows.get(0).get(0))
+    Ok(rows[0].get(0))
 }
 
-fn initialize_package_in_database(conn: &Connection, pkg: &MetadataPackage) -> Result<i32> {
+fn initialize_package_in_database(conn: &mut Client, pkg: &MetadataPackage) -> Result<i32> {
     let mut rows = conn.query("SELECT id FROM crates WHERE name = $1", &[&pkg.name])?;
     // insert crate into database if it is not exists
     if rows.is_empty() {
@@ -163,7 +163,7 @@ fn initialize_package_in_database(conn: &Connection, pkg: &MetadataPackage) -> R
             &[&pkg.name],
         )?;
     }
-    Ok(rows.get(0).get(0))
+    Ok(rows[0].get(0))
 }
 
 /// Convert dependencies into Vec<(String, String, String)>
@@ -250,7 +250,7 @@ fn read_rust_doc(file_path: &Path) -> Result<Option<String>> {
 
 /// Adds keywords into database
 fn add_keywords_into_database(
-    conn: &Connection,
+    conn: &mut Client,
     pkg: &MetadataPackage,
     release_id: i32,
 ) -> Result<()> {
@@ -259,14 +259,13 @@ fn add_keywords_into_database(
         let keyword_id: i32 = {
             let rows = conn.query("SELECT id FROM keywords WHERE slug = $1", &[&slug])?;
             if !rows.is_empty() {
-                rows.get(0).get(0)
+                rows[0].get(0)
             } else {
                 conn.query(
                     "INSERT INTO keywords (name, slug) VALUES ($1, $2) RETURNING id",
                     &[&keyword, &slug],
-                )?
-                .get(0)
-                .get(0)
+                )?[0]
+                    .get(0)
             }
         };
 
@@ -282,7 +281,7 @@ fn add_keywords_into_database(
 
 /// Adds authors into database
 fn add_authors_into_database(
-    conn: &Connection,
+    conn: &mut Client,
     pkg: &MetadataPackage,
     release_id: i32,
 ) -> Result<()> {
@@ -304,15 +303,14 @@ fn add_authors_into_database(
             let author_id: i32 = {
                 let rows = conn.query("SELECT id FROM authors WHERE slug = $1", &[&slug])?;
                 if !rows.is_empty() {
-                    rows.get(0).get(0)
+                    rows[0].get(0)
                 } else {
                     conn.query(
                         "INSERT INTO authors (name, email, slug) VALUES ($1, $2, $3)
                                      RETURNING id",
                         &[&author, &email, &slug],
-                    )?
-                    .get(0)
-                    .get(0)
+                    )?[0]
+                        .get(0)
                 }
             };
 
@@ -328,15 +326,12 @@ fn add_authors_into_database(
 }
 
 pub fn update_crate_data_in_database(
-    conn: &Connection,
+    conn: &mut Client,
     name: &str,
     registry_data: &CrateData,
 ) -> Result<()> {
     info!("Updating crate data for {}", name);
-    let crate_id = conn
-        .query("SELECT id FROM crates WHERE crates.name = $1", &[&name])?
-        .get(0)
-        .get(0);
+    let crate_id = conn.query("SELECT id FROM crates WHERE crates.name = $1", &[&name])?[0].get(0);
 
     update_owners_in_database(conn, &registry_data.owners, crate_id)?;
 
@@ -345,7 +340,7 @@ pub fn update_crate_data_in_database(
 
 /// Adds owners into database
 fn update_owners_in_database(
-    conn: &Connection,
+    conn: &mut Client,
     owners: &[CrateOwner],
     crate_id: i32,
 ) -> Result<()> {
@@ -379,9 +374,8 @@ fn update_owners_in_database(
                     RETURNING id
                 ",
                 &[&owner.login, &owner.avatar, &owner.name, &owner.email],
-            )?
-            .get(0)
-            .get(0)
+            )?[0]
+                .get(0)
         };
 
         // add relationship
@@ -413,7 +407,7 @@ fn update_owners_in_database(
 }
 
 /// Add the compression algorithms used for this crate to the database
-fn add_compression_into_database<I>(conn: &Connection, algorithms: I, release_id: i32) -> Result<()>
+fn add_compression_into_database<I>(conn: &mut Client, algorithms: I, release_id: i32) -> Result<()>
 where
     I: Iterator<Item = CompressionAlgorithm>,
 {
@@ -421,9 +415,9 @@ where
     INSERT INTO compression_rels (release, algorithm)
     VALUES ($1, $2)
     ON CONFLICT DO NOTHING;";
-    let prepared = conn.prepare_cached(sql)?;
+    let prepared = conn.prepare(sql)?;
     for alg in algorithms {
-        prepared.execute(&[&release_id, &(alg as i32)])?;
+        conn.query(&prepared, &[&release_id, &(alg as i32)])?;
     }
     Ok(())
 }
diff --git a/src/db/blacklist.rs b/src/db/blacklist.rs
index 22686f503..56abfd031 100644
--- a/src/db/blacklist.rs
+++ b/src/db/blacklist.rs
@@ -1,5 +1,5 @@
 use failure::{Error, Fail};
-use postgres::Connection;
+use postgres::Client;
 
 #[derive(Debug, Fail)]
 enum BlacklistError {
@@ -11,18 +11,18 @@ enum BlacklistError {
 }
 
 /// Returns whether the given name is blacklisted.
-pub fn is_blacklisted(conn: &Connection, name: &str) -> Result<bool, Error> {
+pub fn is_blacklisted(conn: &mut Client, name: &str) -> Result<bool, Error> {
     let rows = conn.query(
         "SELECT COUNT(*) FROM blacklisted_crates WHERE crate_name = $1;",
         &[&name],
     )?;
-    let count: i64 = rows.get(0).get(0);
+    let count: i64 = rows[0].get(0);
 
     Ok(count != 0)
 }
 
 /// Returns the crate names on the blacklist, sorted ascending.
-pub fn list_crates(conn: &Connection) -> Result<Vec<String>, Error> {
+pub fn list_crates(conn: &mut Client) -> Result<Vec<String>, Error> {
     let rows = conn.query(
         "SELECT crate_name FROM blacklisted_crates ORDER BY crate_name asc;",
         &[],
@@ -32,7 +32,7 @@ pub fn list_crates(conn: &Connection) -> Result<Vec<String>, Error> {
 }
 
 /// Adds a crate to the blacklist.
-pub fn add_crate(conn: &Connection, name: &str) -> Result<(), Error> {
+pub fn add_crate(conn: &mut Client, name: &str) -> Result<(), Error> {
     if is_blacklisted(conn, name)? {
         return Err(BlacklistError::CrateAlreadyOnBlacklist(name.into()).into());
     }
@@ -46,7 +46,7 @@ pub fn add_crate(conn: &Connection, name: &str) -> Result<(), Error> {
 }
 
 /// Removes a crate from the blacklist.
-pub fn remove_crate(conn: &Connection, name: &str) -> Result<(), Error> {
+pub fn remove_crate(conn: &mut Client, name: &str) -> Result<(), Error> {
     if !is_blacklisted(conn, name)? {
         return Err(BlacklistError::CrateNotOnBlacklist(name.into()).into());
     }
@@ -69,11 +69,11 @@ mod tests {
             let db = env.db();
 
             // crates are added out of order to verify sorting
-            add_crate(&db.conn(), "crate A")?;
-            add_crate(&db.conn(), "crate C")?;
-            add_crate(&db.conn(), "crate B")?;
+            add_crate(&mut db.conn(), "crate A")?;
+            add_crate(&mut db.conn(), "crate C")?;
+            add_crate(&mut db.conn(), "crate B")?;
 
-            assert!(list_crates(&db.conn())? == vec!["crate A", "crate B", "crate C"]);
+            assert!(list_crates(&mut db.conn())? == vec!["crate A", "crate B", "crate C"]);
             Ok(())
         });
     }
@@ -83,11 +83,11 @@ mod tests {
         crate::test::wrapper(|env| {
             let db = env.db();
 
-            assert!(!is_blacklisted(&db.conn(), "crate foo")?);
-            add_crate(&db.conn(), "crate foo")?;
-            assert!(is_blacklisted(&db.conn(), "crate foo")?);
-            remove_crate(&db.conn(), "crate foo")?;
-            assert!(!is_blacklisted(&db.conn(), "crate foo")?);
+            assert!(!is_blacklisted(&mut db.conn(), "crate foo")?);
+            add_crate(&mut db.conn(), "crate foo")?;
+            assert!(is_blacklisted(&mut db.conn(), "crate foo")?);
+            remove_crate(&mut db.conn(), "crate foo")?;
+            assert!(!is_blacklisted(&mut db.conn(), "crate foo")?);
             Ok(())
         });
     }
@@ -97,9 +97,9 @@ mod tests {
         crate::test::wrapper(|env| {
             let db = env.db();
 
-            add_crate(&db.conn(), "crate foo")?;
-            assert!(add_crate(&db.conn(), "crate foo").is_err());
-            add_crate(&db.conn(), "crate bar")?;
+            add_crate(&mut db.conn(), "crate foo")?;
+            assert!(add_crate(&mut db.conn(), "crate foo").is_err());
+            add_crate(&mut db.conn(), "crate bar")?;
 
             Ok(())
         });
@@ -110,7 +110,7 @@ mod tests {
         crate::test::wrapper(|env| {
             let db = env.db();
 
-            assert!(remove_crate(&db.conn(), "crate foo").is_err());
+            assert!(remove_crate(&mut db.conn(), "crate foo").is_err());
 
             Ok(())
         });
diff --git a/src/db/delete.rs b/src/db/delete.rs
index 26c71137b..0f354d3d3 100644
--- a/src/db/delete.rs
+++ b/src/db/delete.rs
@@ -1,6 +1,6 @@
 use crate::Storage;
 use failure::{Error, Fail};
-use postgres::Connection;
+use postgres::Client;
 
 /// List of directories in docs.rs's underlying storage (either the database or S3) containing a
 /// subdirectory named after the crate. Those subdirectories will be deleted.
@@ -12,7 +12,7 @@ enum CrateDeletionError {
     MissingCrate(String),
 }
 
-pub fn delete_crate(conn: &Connection, storage: &Storage, name: &str) -> Result<(), Error> {
+pub fn delete_crate(conn: &mut Client, storage: &Storage, name: &str) -> Result<(), Error> {
     let crate_id = get_id(conn, name)?;
     delete_crate_from_database(conn, name, crate_id)?;
 
@@ -24,7 +24,7 @@ pub fn delete_crate(conn: &Connection, storage: &Storage, name: &str) -> Result<
 }
 
 pub fn delete_version(
-    conn: &Connection,
+    conn: &mut Client,
     storage: &Storage,
     name: &str,
     version: &str,
@@ -38,7 +38,7 @@ pub fn delete_version(
     Ok(())
 }
 
-fn get_id(conn: &Connection, name: &str) -> Result<i32, Error> {
+fn get_id(conn: &mut Client, name: &str) -> Result<i32, Error> {
     let crate_id_res = conn.query("SELECT id FROM crates WHERE name = $1", &[&name])?;
     if let Some(row) = crate_id_res.into_iter().next() {
         Ok(row.get("id"))
@@ -56,12 +56,12 @@ const METADATA: &[(&str, &str)] = &[
     ("compression_rels", "release"),
 ];
 
-fn delete_version_from_database(conn: &Connection, name: &str, version: &str) -> Result<(), Error> {
+fn delete_version_from_database(conn: &mut Client, name: &str, version: &str) -> Result<(), Error> {
     let crate_id = get_id(conn, name)?;
-    let transaction = conn.transaction()?;
+    let mut transaction = conn.transaction()?;
     for &(table, column) in METADATA {
         transaction.execute(
-            &format!("DELETE FROM {} WHERE {} IN (SELECT id FROM releases WHERE crate_id = $1 AND version = $2)", table, column),
+            format!("DELETE FROM {} WHERE {} IN (SELECT id FROM releases WHERE crate_id = $1 AND version = $2)", table, column).as_str(),
             &[&crate_id, &version],
         )?;
     }
@@ -88,8 +88,8 @@ fn delete_version_from_database(conn: &Connection, name: &str, version: &str) ->
     transaction.commit().map_err(Into::into)
 }
 
-fn delete_crate_from_database(conn: &Connection, name: &str, crate_id: i32) -> Result<(), Error> {
-    let transaction = conn.transaction()?;
+fn delete_crate_from_database(conn: &mut Client, name: &str, crate_id: i32) -> Result<(), Error> {
+    let mut transaction = conn.transaction()?;
 
     transaction.execute(
         "DELETE FROM sandbox_overrides WHERE crate_name = $1",
@@ -97,10 +97,11 @@ fn delete_crate_from_database(conn: &Connection, name: &str, crate_id: i32) -> R
     )?;
     for &(table, column) in METADATA {
         transaction.execute(
-            &format!(
+            format!(
                 "DELETE FROM {} WHERE {} IN (SELECT id FROM releases WHERE crate_id = $1)",
                 table, column
-            ),
+            )
+            .as_str(),
             &[&crate_id],
         )?;
     }
@@ -119,15 +120,15 @@ mod tests {
     use super::*;
     use crate::test::{assert_success, wrapper};
     use failure::Error;
-    use postgres::Connection;
+    use postgres::Client;
 
-    fn crate_exists(conn: &Connection, name: &str) -> Result<bool, Error> {
+    fn crate_exists(conn: &mut Client, name: &str) -> Result<bool, Error> {
         Ok(!conn
             .query("SELECT * FROM crates WHERE name = $1;", &[&name])?
             .is_empty())
     }
 
-    fn release_exists(conn: &Connection, id: i32) -> Result<bool, Error> {
+    fn release_exists(conn: &mut Client, id: i32) -> Result<bool, Error> {
         Ok(!conn
             .query("SELECT * FROM releases WHERE id = $1;", &[&id])?
             .is_empty())
@@ -151,25 +152,24 @@ mod tests {
                 .create()?;
             let pkg2_id = env.fake_release().name("package-2").create()?;
 
-            assert!(crate_exists(&db.conn(), "package-1")?);
-            assert!(crate_exists(&db.conn(), "package-2")?);
-            assert!(release_exists(&db.conn(), pkg1_v1_id)?);
-            assert!(release_exists(&db.conn(), pkg1_v2_id)?);
-            assert!(release_exists(&db.conn(), pkg2_id)?);
+            assert!(crate_exists(&mut db.conn(), "package-1")?);
+            assert!(crate_exists(&mut db.conn(), "package-2")?);
+            assert!(release_exists(&mut db.conn(), pkg1_v1_id)?);
+            assert!(release_exists(&mut db.conn(), pkg1_v2_id)?);
+            assert!(release_exists(&mut db.conn(), pkg2_id)?);
 
             let pkg1_id = &db
                 .conn()
-                .query("SELECT id FROM crates WHERE name = 'package-1';", &[])?
-                .get(0)
+                .query("SELECT id FROM crates WHERE name = 'package-1';", &[])?[0]
                 .get("id");
 
-            delete_crate_from_database(&db.conn(), "package-1", *pkg1_id)?;
+            delete_crate_from_database(&mut db.conn(), "package-1", *pkg1_id)?;
 
-            assert!(!crate_exists(&db.conn(), "package-1")?);
-            assert!(crate_exists(&db.conn(), "package-2")?);
-            assert!(!release_exists(&db.conn(), pkg1_v1_id)?);
-            assert!(!release_exists(&db.conn(), pkg1_v2_id)?);
-            assert!(release_exists(&db.conn(), pkg2_id)?);
+            assert!(!crate_exists(&mut db.conn(), "package-1")?);
+            assert!(crate_exists(&mut db.conn(), "package-2")?);
+            assert!(!release_exists(&mut db.conn(), pkg1_v1_id)?);
+            assert!(!release_exists(&mut db.conn(), pkg1_v2_id)?);
+            assert!(release_exists(&mut db.conn(), pkg2_id)?);
 
             Ok(())
         });
@@ -178,7 +178,7 @@ mod tests {
     #[test]
     fn test_delete_version() {
         wrapper(|env| {
-            fn authors(conn: &Connection, crate_id: i32) -> Result<Vec<String>, Error> {
+            fn authors(conn: &mut Client, crate_id: i32) -> Result<Vec<String>, Error> {
                 Ok(conn
                     .query(
                         "SELECT name FROM authors
@@ -205,8 +205,8 @@ mod tests {
                 .version("2.0.0")
                 .author("Peter Rabbit")
                 .create()?;
-            assert!(release_exists(&db.conn(), v1)?);
-            assert!(release_exists(&db.conn(), v2)?);
+            assert!(release_exists(&mut db.conn(), v1)?);
+            assert!(release_exists(&mut db.conn(), v2)?);
             let crate_id = db
                 .conn()
                 .query("SELECT crate_id FROM releases WHERE id = $1", &[&v1])?
@@ -215,15 +215,15 @@ mod tests {
                 .unwrap()
                 .get(0);
             assert_eq!(
-                authors(&db.conn(), crate_id)?,
+                authors(&mut db.conn(), crate_id)?,
                 vec!["malicious actor".to_string(), "Peter Rabbit".to_string()]
             );
 
-            delete_version(&db.conn(), &*env.storage(), "a", "1.0.0")?;
-            assert!(!release_exists(&db.conn(), v1)?);
-            assert!(release_exists(&db.conn(), v2)?);
+            delete_version(&mut db.conn(), &*env.storage(), "a", "1.0.0")?;
+            assert!(!release_exists(&mut db.conn(), v1)?);
+            assert!(release_exists(&mut db.conn(), v2)?);
             assert_eq!(
-                authors(&db.conn(), crate_id)?,
+                authors(&mut db.conn(), crate_id)?,
                 vec!["Peter Rabbit".to_string()]
             );
 
diff --git a/src/db/migrate.rs b/src/db/migrate.rs
index e4c6f41ae..ad4361439 100644
--- a/src/db/migrate.rs
+++ b/src/db/migrate.rs
@@ -2,7 +2,7 @@
 
 use crate::error::Result as CratesfyiResult;
 use log::info;
-use postgres::{transaction::Transaction, Connection, Error as PostgresError};
+use postgres::{Client, Error as PostgresError, Transaction};
 use schemamama::{Migration, Migrator, Version};
 use schemamama_postgres::{PostgresAdapter, PostgresMigration};
 
@@ -29,7 +29,7 @@ macro_rules! migration {
             }
         }
         impl PostgresMigration for Amigration {
-            fn up(&self, transaction: &Transaction) -> Result<(), PostgresError> {
+            fn up(&self, transaction: &mut Transaction) -> Result<(), PostgresError> {
                 info!(
                     "Applying migration {}: {}",
                     self.version(),
@@ -37,7 +37,7 @@ macro_rules! migration {
                 );
                 transaction.batch_execute($up).map(|_| ())
             }
-            fn down(&self, transaction: &Transaction) -> Result<(), PostgresError> {
+            fn down(&self, transaction: &mut Transaction) -> Result<(), PostgresError> {
                 info!(
                     "Removing migration {}: {}",
                     self.version(),
@@ -50,12 +50,13 @@ macro_rules! migration {
     }};
 }
 
-pub fn migrate(version: Option<Version>, conn: &Connection) -> CratesfyiResult<()> {
+pub fn migrate(version: Option<Version>, conn: &mut Client) -> CratesfyiResult<()> {
     conn.execute(
         "CREATE TABLE IF NOT EXISTS database_versions (version BIGINT PRIMARY KEY);",
         &[],
     )?;
-    let adapter = PostgresAdapter::with_metadata_table(conn, "database_versions");
+    let mut adapter = PostgresAdapter::new(conn);
+    adapter.set_metadata_table("database_versions");
 
     let mut migrator = Migrator::new(adapter);
 
diff --git a/src/db/mod.rs b/src/db/mod.rs
index 9783cea23..e1f8db097 100644
--- a/src/db/mod.rs
+++ b/src/db/mod.rs
@@ -5,7 +5,7 @@ pub(crate) use self::add_package::{add_build_into_database, add_package_into_dat
 pub use self::delete::{delete_crate, delete_version};
 pub use self::file::add_path_into_database;
 pub use self::migrate::migrate;
-pub(crate) use self::pool::PoolConnection;
+pub(crate) use self::pool::PoolClient;
 pub use self::pool::{Pool, PoolError};
 
 mod add_package;
diff --git a/src/db/pool.rs b/src/db/pool.rs
index 910c7b1c1..db9b3d235 100644
--- a/src/db/pool.rs
+++ b/src/db/pool.rs
@@ -1,14 +1,14 @@
 use crate::Config;
-use postgres::Connection;
+use postgres::{Client, NoTls};
 use r2d2_postgres::PostgresConnectionManager;
 
-pub(crate) type PoolConnection = r2d2::PooledConnection<PostgresConnectionManager>;
+pub(crate) type PoolClient = r2d2::PooledConnection<PostgresConnectionManager<NoTls>>;
 
 const DEFAULT_SCHEMA: &str = "public";
 
 #[derive(Debug, Clone)]
 pub struct Pool {
-    pool: r2d2::Pool<PostgresConnectionManager>,
+    pool: r2d2::Pool<PostgresConnectionManager<NoTls>>,
 }
 
 impl Pool {
@@ -24,12 +24,11 @@ impl Pool {
     fn new_inner(config: &Config, schema: &str) -> Result<Pool, PoolError> {
         crate::web::metrics::MAX_DB_CONNECTIONS.set(config.max_pool_size as i64);
 
-        let manager = PostgresConnectionManager::new(
-            config.database_url.as_str(),
-            r2d2_postgres::TlsMode::None,
-        )
-        .map_err(PoolError::InvalidDatabaseUrl)?;
-
+        let url = config
+            .database_url
+            .parse()
+            .map_err(PoolError::InvalidDatabaseUrl)?;
+        let manager = PostgresConnectionManager::new(url, NoTls);
         let pool = r2d2::Pool::builder()
             .max_size(config.max_pool_size)
             .min_idle(Some(config.min_pool_idle))
@@ -40,12 +39,12 @@ impl Pool {
         Ok(Pool { pool })
     }
 
-    pub fn get(&self) -> Result<PoolConnection, PoolError> {
+    pub fn get(&self) -> Result<PoolClient, PoolError> {
         match self.pool.get() {
             Ok(conn) => Ok(conn),
             Err(err) => {
                 crate::web::metrics::FAILED_DB_CONNECTIONS.inc();
-                Err(PoolError::ConnectionError(err))
+                Err(PoolError::ClientError(err))
             }
         }
     }
@@ -72,11 +71,11 @@ impl SetSchema {
     }
 }
 
-impl r2d2::CustomizeConnection<Connection, postgres::Error> for SetSchema {
-    fn on_acquire(&self, conn: &mut Connection) -> Result<(), postgres::Error> {
+impl r2d2::CustomizeConnection<Client, postgres::Error> for SetSchema {
+    fn on_acquire(&self, conn: &mut Client) -> Result<(), postgres::Error> {
         if self.schema != DEFAULT_SCHEMA {
             conn.execute(
-                &format!("SET search_path TO {}, {};", self.schema, DEFAULT_SCHEMA),
+                format!("SET search_path TO {}, {};", self.schema, DEFAULT_SCHEMA).as_str(),
                 &[],
             )?;
         }
@@ -93,5 +92,5 @@ pub enum PoolError {
     PoolCreationFailed(#[fail(cause)] r2d2::Error),
 
     #[fail(display = "failed to get a database connection")]
-    ConnectionError(#[fail(cause)] r2d2::Error),
+    ClientError(#[fail(cause)] r2d2::Error),
 }
diff --git a/src/docbuilder/limits.rs b/src/docbuilder/limits.rs
index e641afdfc..58f53a8ae 100644
--- a/src/docbuilder/limits.rs
+++ b/src/docbuilder/limits.rs
@@ -1,5 +1,5 @@
 use crate::error::Result;
-use postgres::Connection;
+use postgres::Client;
 use serde::Serialize;
 use std::time::Duration;
 
@@ -25,7 +25,7 @@ impl Default for Limits {
 }
 
 impl Limits {
-    pub(crate) fn for_crate(conn: &Connection, name: &str) -> Result<Self> {
+    pub(crate) fn for_crate(conn: &mut Client, name: &str) -> Result<Self> {
         let mut limits = Self::default();
 
         let res = conn.query(
@@ -33,7 +33,7 @@ impl Limits {
             &[&name],
         )?;
         if !res.is_empty() {
-            let row = res.get(0);
+            let row = &res[0];
             if let Some(memory) = row.get::<_, Option<i64>>("max_memory_bytes") {
                 limits.memory = memory as usize;
             }
@@ -81,7 +81,7 @@ mod test {
 
             let krate = "hexponent";
             // limits work if no crate has limits set
-            let hexponent = Limits::for_crate(&db.conn(), krate)?;
+            let hexponent = Limits::for_crate(&mut db.conn(), krate)?;
             assert_eq!(hexponent, Limits::default());
 
             db.conn().query(
@@ -89,7 +89,7 @@ mod test {
                 &[&krate],
             )?;
             // limits work if crate has limits set
-            let hexponent = Limits::for_crate(&db.conn(), krate)?;
+            let hexponent = Limits::for_crate(&mut db.conn(), krate)?;
             assert_eq!(
                 hexponent,
                 Limits {
@@ -111,7 +111,7 @@ mod test {
                  VALUES ($1, $2, $3, $4)",
                 &[&krate, &(limits.memory as i64), &(limits.timeout.as_secs() as i32), &(limits.targets as i32)]
             )?;
-            assert_eq!(limits, Limits::for_crate(&db.conn(), krate)?);
+            assert_eq!(limits, Limits::for_crate(&mut db.conn(), krate)?);
             Ok(())
         });
     }
diff --git a/src/docbuilder/mod.rs b/src/docbuilder/mod.rs
index 8aedff9aa..ede7d2ac8 100644
--- a/src/docbuilder/mod.rs
+++ b/src/docbuilder/mod.rs
@@ -67,8 +67,8 @@ impl DocBuilder {
     fn load_database_cache(&mut self) -> Result<()> {
         debug!("Loading database cache");
 
-        let conn = self.db.get()?;
-        for row in &conn.query(
+        let mut conn = self.db.get()?;
+        for row in &mut conn.query(
             "SELECT name, version FROM crates, releases \
              WHERE crates.id = releases.crate_id",
             &[],
diff --git a/src/docbuilder/queue.rs b/src/docbuilder/queue.rs
index 9be78eb20..ae3bfc76e 100644
--- a/src/docbuilder/queue.rs
+++ b/src/docbuilder/queue.rs
@@ -10,7 +10,7 @@ impl DocBuilder {
     /// Updates registry index repository and adds new crates into build queue.
     /// Returns the number of crates added
     pub fn get_new_crates(&mut self) -> Result<usize> {
-        let conn = self.db.get()?;
+        let mut conn = self.db.get()?;
         let diff = self.index.diff()?;
         let (mut changes, oid) = diff.peek_changes()?;
         let mut crates_added = 0;
@@ -42,7 +42,7 @@ impl DocBuilder {
                 }
 
                 ChangeKind::Added => {
-                    let priority = get_crate_priority(&conn, &krate.name)?;
+                    let priority = get_crate_priority(&mut conn, &krate.name)?;
 
                     match self
                         .build_queue
diff --git a/src/docbuilder/rustwide_builder.rs b/src/docbuilder/rustwide_builder.rs
index 4ef38303c..26da6eccd 100644
--- a/src/docbuilder/rustwide_builder.rs
+++ b/src/docbuilder/rustwide_builder.rs
@@ -204,8 +204,8 @@ impl RustwideBuilder {
 
         info!("building a dummy crate to get essential files");
 
-        let conn = self.db.get()?;
-        let limits = Limits::for_crate(&conn, DUMMY_CRATE_NAME)?;
+        let mut conn = self.db.get()?;
+        let limits = Limits::for_crate(&mut conn, DUMMY_CRATE_NAME)?;
 
         let mut build_dir = self
             .workspace
@@ -317,14 +317,14 @@ impl RustwideBuilder {
 
         info!("building package {} {}", name, version);
 
-        let conn = self.db.get()?;
+        let mut conn = self.db.get()?;
 
-        if is_blacklisted(&conn, name)? {
+        if is_blacklisted(&mut conn, name)? {
             info!("skipping build of {}, crate has been blacklisted", name);
             return Ok(false);
         }
 
-        let limits = Limits::for_crate(&conn, name)?;
+        let limits = Limits::for_crate(&mut conn, name)?;
 
         let mut build_dir = self.workspace.build_dir(&format!("{}-{}", name, version));
         build_dir.purge()?;
@@ -410,7 +410,7 @@ impl RustwideBuilder {
                 };
 
                 let release_id = add_package_into_database(
-                    &conn,
+                    &mut conn,
                     res.cargo_metadata.root(),
                     &build.host_source_dir(),
                     &res.result,
@@ -423,11 +423,11 @@ impl RustwideBuilder {
                     algs,
                 )?;
 
-                add_build_into_database(&conn, release_id, &res.result)?;
+                add_build_into_database(&mut conn, release_id, &res.result)?;
 
                 // Some crates.io crate data is mutable, so we proactively update it during a release
                 match doc_builder.index.api().get_crate_data(name) {
-                    Ok(crate_data) => update_crate_data_in_database(&conn, name, &crate_data)?,
+                    Ok(crate_data) => update_crate_data_in_database(&mut conn, name, &crate_data)?,
                     Err(err) => warn!("{:#?}", err),
                 }
 
diff --git a/src/storage/database.rs b/src/storage/database.rs
index 27dcf6c32..9d6343607 100644
--- a/src/storage/database.rs
+++ b/src/storage/database.rs
@@ -2,7 +2,7 @@ use super::{Blob, StorageTransaction};
 use crate::db::Pool;
 use chrono::{DateTime, NaiveDateTime, Utc};
 use failure::Error;
-use postgres::transaction::Transaction;
+use postgres::Transaction;
 
 pub(crate) struct DatabaseBackend {
     pool: Pool,
@@ -15,8 +15,8 @@ impl DatabaseBackend {
 
     pub(super) fn exists(&self, path: &str) -> Result<bool, Error> {
         let query = "SELECT COUNT(*) > 0 FROM files WHERE path = $1";
-        let conn = self.pool.get()?;
-        Ok(conn.query(query, &[&path])?.get(0).get(0))
+        let mut conn = self.pool.get()?;
+        Ok(conn.query(query, &[&path])?[0].get(0))
     }
 
     pub(super) fn get(&self, path: &str, max_size: usize) -> Result<Blob, Error> {
@@ -41,7 +41,7 @@ impl DatabaseBackend {
         if rows.is_empty() {
             Err(super::PathNotFoundError.into())
         } else {
-            let row = rows.get(0);
+            let row = &rows[0];
 
             if row.get("is_too_big") {
                 return Err(std::io::Error::new(
@@ -65,20 +65,20 @@ impl DatabaseBackend {
         }
     }
 
-    pub(super) fn start_connection(&self) -> Result<DatabaseConnection, Error> {
-        Ok(DatabaseConnection {
+    pub(super) fn start_connection(&self) -> Result<DatabaseClient, Error> {
+        Ok(DatabaseClient {
             conn: self.pool.get()?,
         })
     }
 }
 
-pub(super) struct DatabaseConnection {
-    conn: crate::db::PoolConnection,
+pub(super) struct DatabaseClient {
+    conn: crate::db::PoolClient,
 }
 
-impl DatabaseConnection {
+impl DatabaseClient {
     pub(super) fn start_storage_transaction(
-        &self,
+        &mut self,
     ) -> Result<DatabaseStorageTransaction<'_>, Error> {
         Ok(DatabaseStorageTransaction {
             transaction: self.conn.transaction()?,
diff --git a/src/storage/mod.rs b/src/storage/mod.rs
index b110b4ff0..bdb643ffe 100644
--- a/src/storage/mod.rs
+++ b/src/storage/mod.rs
@@ -125,7 +125,7 @@ impl Storage {
     where
         F: FnOnce(&mut dyn StorageTransaction) -> Result<T, Error>,
     {
-        let conn;
+        let mut conn;
         let mut trans: Box<dyn StorageTransaction> = match &self.backend {
             StorageBackend::Database(db) => {
                 conn = db.start_connection()?;
diff --git a/src/test/fakes.rs b/src/test/fakes.rs
index c9ecd9f7a..395f265f9 100644
--- a/src/test/fakes.rs
+++ b/src/test/fakes.rs
@@ -248,7 +248,7 @@ impl<'a> FakeRelease<'a> {
             fs::write(crate_dir.join("README.md"), markdown)?;
         }
         let release_id = crate::db::add_package_into_database(
-            &db.conn(),
+            &mut db.conn(),
             &package,
             crate_dir,
             &self.build_result,
@@ -261,11 +261,11 @@ impl<'a> FakeRelease<'a> {
             algs,
         )?;
         crate::db::update_crate_data_in_database(
-            &db.conn(),
+            &mut db.conn(),
             &package.name,
             &self.registry_crate_data,
         )?;
-        crate::db::add_build_into_database(&db.conn(), release_id, &self.build_result)?;
+        crate::db::add_build_into_database(&mut db.conn(), release_id, &self.build_result)?;
 
         Ok(release_id)
     }
diff --git a/src/test/mod.rs b/src/test/mod.rs
index f2f315f72..5b0e4ffdf 100644
--- a/src/test/mod.rs
+++ b/src/test/mod.rs
@@ -1,6 +1,6 @@
 mod fakes;
 
-use crate::db::{Pool, PoolConnection};
+use crate::db::{Pool, PoolClient};
 use crate::storage::Storage;
 use crate::web::Server;
 use crate::BuildQueue;
@@ -8,7 +8,7 @@ use crate::Config;
 use failure::Error;
 use log::error;
 use once_cell::unsync::OnceCell;
-use postgres::Connection;
+use postgres::Client as Connection;
 use reqwest::{
     blocking::{Client, RequestBuilder},
     Method,
@@ -229,7 +229,7 @@ impl TestDatabase {
         // test to create a fresh instance of the database to run within.
         let schema = format!("docs_rs_test_schema_{}", rand::random::<u64>());
 
-        let conn = Connection::connect(config.database_url.as_str(), postgres::TlsMode::None)?;
+        let mut conn = Connection::connect(&config.database_url, postgres::NoTls)?;
         conn.batch_execute(&format!(
             "
                 CREATE SCHEMA {0};
@@ -237,7 +237,7 @@ impl TestDatabase {
             ",
             schema
         ))?;
-        crate::db::migrate(None, &conn)?;
+        crate::db::migrate(None, &mut conn)?;
 
         // Move all sequence start positions 10000 apart to avoid overlapping primary keys
         let query: String = conn
@@ -272,7 +272,7 @@ impl TestDatabase {
         self.pool.clone()
     }
 
-    pub(crate) fn conn(&self) -> PoolConnection {
+    pub(crate) fn conn(&self) -> PoolClient {
         self.pool
             .get()
             .expect("failed to get a connection out of the pool")
@@ -281,11 +281,11 @@ impl TestDatabase {
 
 impl Drop for TestDatabase {
     fn drop(&mut self) {
-        crate::db::migrate(Some(0), &self.conn()).expect("downgrading database works");
-        if let Err(e) = self
-            .conn()
-            .execute(&format!("DROP SCHEMA {} CASCADE;", self.schema), &[])
-        {
+        crate::db::migrate(Some(0), &mut self.conn()).expect("downgrading database works");
+        if let Err(e) = self.conn().execute(
+            format!("DROP SCHEMA {} CASCADE;", self.schema).as_str(),
+            &[],
+        ) {
             error!("failed to drop test schema {}: {}", self.schema, e);
         }
     }
diff --git a/src/utils/daemon.rs b/src/utils/daemon.rs
index 50e9ba759..990516f5d 100644
--- a/src/utils/daemon.rs
+++ b/src/utils/daemon.rs
@@ -88,7 +88,7 @@ pub fn start_daemon(
             let now = Utc::now();
             if now.hour() == 23 && now.minute() == 55 {
                 info!("Updating release activity");
-                update_release_activity(&*cloned_db.get()?)?;
+                update_release_activity(&mut *cloned_db.get()?)?;
             }
             Ok(())
         },
diff --git a/src/utils/github_updater.rs b/src/utils/github_updater.rs
index 00fea698d..def144a46 100644
--- a/src/utils/github_updater.rs
+++ b/src/utils/github_updater.rs
@@ -3,7 +3,7 @@ use crate::{db::Pool, Config};
 use chrono::{DateTime, Utc};
 use failure::err_msg;
 use log::{debug, warn};
-use postgres::Connection;
+use postgres::Client;
 use regex::Regex;
 use reqwest::header::{HeaderValue, ACCEPT, AUTHORIZATION, USER_AGENT};
 use serde::Deserialize;
@@ -62,7 +62,7 @@ impl GithubUpdater {
             return Ok(());
         }
 
-        let conn = self.pool.get()?;
+        let mut conn = self.pool.get()?;
         // TODO: This query assumes repository field in Cargo.toml is
         //       always the same across all versions of a crate
         let rows = conn.query(
@@ -85,7 +85,7 @@ impl GithubUpdater {
             let repository_url: String = row.get(2);
 
             debug!("Updating {}", crate_name);
-            if let Err(err) = self.update_crate(&conn, crate_id, &repository_url) {
+            if let Err(err) = self.update_crate(&mut conn, crate_id, &repository_url) {
                 if self.is_rate_limited()? {
                     warn!("Skipping remaining updates because of rate limit");
                     return Ok(());
@@ -120,7 +120,7 @@ impl GithubUpdater {
         Ok(response.resources.core.remaining == 0)
     }
 
-    fn update_crate(&self, conn: &Connection, crate_id: i32, repository_url: &str) -> Result<()> {
+    fn update_crate(&self, conn: &mut Client, crate_id: i32, repository_url: &str) -> Result<()> {
         let path =
             get_github_path(repository_url).ok_or_else(|| err_msg("Failed to get github path"))?;
         let fields = self.get_github_fields(&path)?;
diff --git a/src/utils/queue.rs b/src/utils/queue.rs
index 1e3952994..76ecb618c 100644
--- a/src/utils/queue.rs
+++ b/src/utils/queue.rs
@@ -1,12 +1,12 @@
 //! Utilities for interacting with the build queue
 
 use crate::error::Result;
-use postgres::Connection;
+use postgres::Client;
 
 const DEFAULT_PRIORITY: i32 = 0;
 
 /// Get the build queue priority for a crate
-pub fn get_crate_priority(conn: &Connection, name: &str) -> Result<i32> {
+pub fn get_crate_priority(conn: &mut Client, name: &str) -> Result<i32> {
     // Search the `priority` table for a priority where the crate name matches the stored pattern
     let query = conn.query(
         "SELECT priority FROM crate_priorities WHERE $1 LIKE pattern LIMIT 1",
@@ -26,7 +26,7 @@ pub fn get_crate_priority(conn: &Connection, name: &str) -> Result<i32> {
 /// Note: `pattern` is used in a `LIKE` statement, so it must follow the postgres like syntax
 ///
 /// [`pattern`]: https://www.postgresql.org/docs/8.3/functions-matching.html
-pub fn set_crate_priority(conn: &Connection, pattern: &str, priority: i32) -> Result<()> {
+pub fn set_crate_priority(conn: &mut Client, pattern: &str, priority: i32) -> Result<()> {
     conn.query(
         "INSERT INTO crate_priorities (pattern, priority) VALUES ($1, $2)",
         &[&pattern, &priority],
@@ -37,7 +37,7 @@ pub fn set_crate_priority(conn: &Connection, pattern: &str, priority: i32) -> Re
 
 /// Remove a pattern from the priority table, returning the priority that it was associated with or `None`
 /// if nothing was removed
-pub fn remove_crate_priority(conn: &Connection, pattern: &str) -> Result<Option<i32>> {
+pub fn remove_crate_priority(conn: &mut Client, pattern: &str) -> Result<Option<i32>> {
     let query = conn.query(
         "DELETE FROM crate_priorities WHERE pattern = $1 RETURNING priority",
         &[&pattern],
@@ -56,28 +56,34 @@ mod tests {
         wrapper(|env| {
             let db = env.db();
 
-            set_crate_priority(&db.conn(), "cratesfyi-%", -100)?;
-            assert_eq!(get_crate_priority(&db.conn(), "cratesfyi-database")?, -100);
-            assert_eq!(get_crate_priority(&db.conn(), "cratesfyi-")?, -100);
-            assert_eq!(get_crate_priority(&db.conn(), "cratesfyi-s3")?, -100);
-            assert_eq!(get_crate_priority(&db.conn(), "cratesfyi-webserver")?, -100);
+            set_crate_priority(&mut db.conn(), "cratesfyi-%", -100)?;
             assert_eq!(
-                get_crate_priority(&db.conn(), "cratesfyi")?,
+                get_crate_priority(&mut db.conn(), "cratesfyi-database")?,
+                -100
+            );
+            assert_eq!(get_crate_priority(&mut db.conn(), "cratesfyi-")?, -100);
+            assert_eq!(get_crate_priority(&mut db.conn(), "cratesfyi-s3")?, -100);
+            assert_eq!(
+                get_crate_priority(&mut db.conn(), "cratesfyi-webserver")?,
+                -100
+            );
+            assert_eq!(
+                get_crate_priority(&mut db.conn(), "cratesfyi")?,
                 DEFAULT_PRIORITY
             );
 
-            set_crate_priority(&db.conn(), "_c_", 100)?;
-            assert_eq!(get_crate_priority(&db.conn(), "rcc")?, 100);
-            assert_eq!(get_crate_priority(&db.conn(), "rc")?, DEFAULT_PRIORITY);
+            set_crate_priority(&mut db.conn(), "_c_", 100)?;
+            assert_eq!(get_crate_priority(&mut db.conn(), "rcc")?, 100);
+            assert_eq!(get_crate_priority(&mut db.conn(), "rc")?, DEFAULT_PRIORITY);
 
-            set_crate_priority(&db.conn(), "hexponent", 10)?;
-            assert_eq!(get_crate_priority(&db.conn(), "hexponent")?, 10);
+            set_crate_priority(&mut db.conn(), "hexponent", 10)?;
+            assert_eq!(get_crate_priority(&mut db.conn(), "hexponent")?, 10);
             assert_eq!(
-                get_crate_priority(&db.conn(), "hexponents")?,
+                get_crate_priority(&mut db.conn(), "hexponents")?,
                 DEFAULT_PRIORITY
             );
             assert_eq!(
-                get_crate_priority(&db.conn(), "floathexponent")?,
+                get_crate_priority(&mut db.conn(), "floathexponent")?,
                 DEFAULT_PRIORITY
             );
 
@@ -90,15 +96,15 @@ mod tests {
         wrapper(|env| {
             let db = env.db();
 
-            set_crate_priority(&db.conn(), "cratesfyi-%", -100)?;
-            assert_eq!(get_crate_priority(&db.conn(), "cratesfyi-")?, -100);
+            set_crate_priority(&mut db.conn(), "cratesfyi-%", -100)?;
+            assert_eq!(get_crate_priority(&mut db.conn(), "cratesfyi-")?, -100);
 
             assert_eq!(
-                remove_crate_priority(&db.conn(), "cratesfyi-%")?,
+                remove_crate_priority(&mut db.conn(), "cratesfyi-%")?,
                 Some(-100)
             );
             assert_eq!(
-                get_crate_priority(&db.conn(), "cratesfyi-")?,
+                get_crate_priority(&mut db.conn(), "cratesfyi-")?,
                 DEFAULT_PRIORITY
             );
 
@@ -111,14 +117,20 @@ mod tests {
         wrapper(|env| {
             let db = env.db();
 
-            set_crate_priority(&db.conn(), "cratesfyi-%", -100)?;
+            set_crate_priority(&mut db.conn(), "cratesfyi-%", -100)?;
 
-            assert_eq!(get_crate_priority(&db.conn(), "cratesfyi-database")?, -100);
-            assert_eq!(get_crate_priority(&db.conn(), "cratesfyi-")?, -100);
-            assert_eq!(get_crate_priority(&db.conn(), "cratesfyi-s3")?, -100);
-            assert_eq!(get_crate_priority(&db.conn(), "cratesfyi-webserver")?, -100);
             assert_eq!(
-                get_crate_priority(&db.conn(), "unrelated")?,
+                get_crate_priority(&mut db.conn(), "cratesfyi-database")?,
+                -100
+            );
+            assert_eq!(get_crate_priority(&mut db.conn(), "cratesfyi-")?, -100);
+            assert_eq!(get_crate_priority(&mut db.conn(), "cratesfyi-s3")?, -100);
+            assert_eq!(
+                get_crate_priority(&mut db.conn(), "cratesfyi-webserver")?,
+                -100
+            );
+            assert_eq!(
+                get_crate_priority(&mut db.conn(), "unrelated")?,
                 DEFAULT_PRIORITY
             );
 
@@ -132,17 +144,20 @@ mod tests {
             let db = env.db();
 
             assert_eq!(
-                get_crate_priority(&db.conn(), "cratesfyi")?,
+                get_crate_priority(&mut db.conn(), "cratesfyi")?,
+                DEFAULT_PRIORITY
+            );
+            assert_eq!(get_crate_priority(&mut db.conn(), "rcc")?, DEFAULT_PRIORITY);
+            assert_eq!(
+                get_crate_priority(&mut db.conn(), "lasso")?,
                 DEFAULT_PRIORITY
             );
-            assert_eq!(get_crate_priority(&db.conn(), "rcc")?, DEFAULT_PRIORITY);
-            assert_eq!(get_crate_priority(&db.conn(), "lasso")?, DEFAULT_PRIORITY);
             assert_eq!(
-                get_crate_priority(&db.conn(), "hexponent")?,
+                get_crate_priority(&mut db.conn(), "hexponent")?,
                 DEFAULT_PRIORITY
             );
             assert_eq!(
-                get_crate_priority(&db.conn(), "rust4lyfe")?,
+                get_crate_priority(&mut db.conn(), "rust4lyfe")?,
                 DEFAULT_PRIORITY
             );
 
diff --git a/src/utils/release_activity_updater.rs b/src/utils/release_activity_updater.rs
index 71e0032bc..f271059af 100644
--- a/src/utils/release_activity_updater.rs
+++ b/src/utils/release_activity_updater.rs
@@ -1,27 +1,28 @@
 use crate::error::Result;
 use chrono::{Duration, Utc};
-use postgres::Connection;
+use postgres::Client;
 use serde_json::{Map, Value};
 
-pub fn update_release_activity(conn: &Connection) -> Result<()> {
+pub fn update_release_activity(conn: &mut Client) -> Result<()> {
     let mut dates = Vec::with_capacity(30);
     let mut crate_counts = Vec::with_capacity(30);
     let mut failure_counts = Vec::with_capacity(30);
 
     for day in 0..30 {
         let rows = conn.query(
-            &format!(
+            format!(
                 "SELECT COUNT(*)
                  FROM releases
                  WHERE release_time < NOW() - INTERVAL '{} day' AND
                        release_time > NOW() - INTERVAL '{} day'",
                 day,
                 day + 1
-            ),
+            )
+            .as_str(),
             &[],
         )?;
         let failures_count_rows = conn.query(
-            &format!(
+            format!(
                 "SELECT COUNT(*)
                  FROM releases
                  WHERE is_library = TRUE AND
@@ -30,12 +31,13 @@ pub fn update_release_activity(conn: &Connection) -> Result<()> {
                        release_time > NOW() - INTERVAL '{} day'",
                 day,
                 day + 1
-            ),
+            )
+            .as_str(),
             &[],
         )?;
 
-        let release_count: i64 = rows.get(0).get(0);
-        let failure_count: i64 = failures_count_rows.get(0).get(0);
+        let release_count: i64 = rows[0].get(0);
+        let failure_count: i64 = failures_count_rows[0].get(0);
         let now = Utc::now().naive_utc();
         let date = now - Duration::days(day);
 
diff --git a/src/web/builds.rs b/src/web/builds.rs
index f4bc80e6e..f807ee93a 100644
--- a/src/web/builds.rs
+++ b/src/web/builds.rs
@@ -42,8 +42,8 @@ pub fn build_list_handler(req: &mut Request) -> IronResult<Response> {
     let version = cexpect!(req, router.find("version"));
     let req_build_id: i32 = router.find("id").unwrap_or("0").parse().unwrap_or(0);
 
-    let conn = extension!(req, Pool).get()?;
-    let limits = ctry!(req, Limits::for_crate(&conn, name));
+    let mut conn = extension!(req, Pool).get()?;
+    let limits = ctry!(req, Limits::for_crate(&mut conn, name));
 
     let query = ctry!(
         req,
@@ -111,7 +111,7 @@ pub fn build_list_handler(req: &mut Request) -> IronResult<Response> {
         Ok(resp)
     } else {
         BuildsPage {
-            metadata: MetaData::from_crate(&conn, &name, &version),
+            metadata: MetaData::from_crate(&mut conn, &name, &version),
             builds,
             build_details,
             limits,
diff --git a/src/web/crate_details.rs b/src/web/crate_details.rs
index cc608bd10..032ae5614 100644
--- a/src/web/crate_details.rs
+++ b/src/web/crate_details.rs
@@ -4,7 +4,7 @@ use crate::{db::Pool, impl_webpage, web::page::WebPage};
 use chrono::{DateTime, NaiveDateTime, Utc};
 use iron::prelude::*;
 use iron::{status, Url};
-use postgres::Connection;
+use postgres::Client;
 use router::Router;
 use serde::{ser::Serializer, Serialize};
 use serde_json::Value;
@@ -67,7 +67,7 @@ pub struct Release {
 }
 
 impl CrateDetails {
-    pub fn new(conn: &Connection, name: &str, version: &str) -> Option<CrateDetails> {
+    pub fn new(conn: &mut Client, name: &str, version: &str) -> Option<CrateDetails> {
         // get all stuff, I love you rustfmt
         let query = "
             SELECT
@@ -107,7 +107,7 @@ impl CrateDetails {
         let krate = if rows.is_empty() {
             return None;
         } else {
-            rows.get(0)
+            &rows[0]
         };
 
         let crate_id: i32 = krate.get("crate_id");
@@ -125,7 +125,7 @@ impl CrateDetails {
             versions.reverse();
             versions
                 .iter()
-                .map(|version| map_to_release(&conn, crate_id, version.to_string()))
+                .map(|version| map_to_release(conn, crate_id, version.to_string()))
                 .collect()
         };
 
@@ -241,7 +241,7 @@ impl CrateDetails {
     }
 }
 
-fn map_to_release(conn: &Connection, crate_id: i32, version: String) -> Release {
+fn map_to_release(conn: &mut Client, crate_id: i32, version: String) -> Release {
     let rows = conn
         .query(
             "SELECT build_status,
@@ -285,11 +285,11 @@ pub fn crate_details_handler(req: &mut Request) -> IronResult<Response> {
     let name = cexpect!(req, router.find("name"));
     let req_version = router.find("version");
 
-    let conn = extension!(req, Pool).get()?;
+    let mut conn = extension!(req, Pool).get()?;
 
-    match match_version(&conn, &name, req_version).and_then(|m| m.assume_exact()) {
+    match match_version(&mut conn, &name, req_version).and_then(|m| m.assume_exact()) {
         Some(MatchSemver::Exact((version, _))) => {
-            let details = cexpect!(req, CrateDetails::new(&conn, &name, &version));
+            let details = cexpect!(req, CrateDetails::new(&mut conn, &name, &version));
 
             CrateDetailsPage { details }.into_response(req)
         }
@@ -326,7 +326,7 @@ mod tests {
         version: &str,
         expected_last_successful_build: Option<&str>,
     ) -> Result<(), Error> {
-        let details = CrateDetails::new(&db.conn(), package, version)
+        let details = CrateDetails::new(&mut db.conn(), package, version)
             .ok_or_else(|| failure::err_msg("could not fetch crate details"))?;
 
         assert_eq!(
@@ -454,7 +454,7 @@ mod tests {
                 .binary(true)
                 .create()?;
 
-            let details = CrateDetails::new(&db.conn(), "foo", "0.2.0").unwrap();
+            let details = CrateDetails::new(&mut db.conn(), "foo", "0.2.0").unwrap();
             assert_eq!(
                 details.releases,
                 vec![
@@ -523,7 +523,7 @@ mod tests {
             env.fake_release().name("foo").version("0.0.2").create()?;
 
             for version in &["0.0.1", "0.0.2", "0.0.3"] {
-                let details = CrateDetails::new(&db.conn(), "foo", version).unwrap();
+                let details = CrateDetails::new(&mut db.conn(), "foo", version).unwrap();
                 assert_eq!(details.latest_release().version, "0.0.3");
             }
 
@@ -545,7 +545,7 @@ mod tests {
             env.fake_release().name("foo").version("0.0.2").create()?;
 
             for version in &["0.0.1", "0.0.2", "0.0.3"] {
-                let details = CrateDetails::new(&db.conn(), "foo", version).unwrap();
+                let details = CrateDetails::new(&mut db.conn(), "foo", version).unwrap();
                 assert_eq!(details.latest_release().version, "0.0.2");
             }
 
@@ -575,7 +575,7 @@ mod tests {
                 .create()?;
 
             for version in &["0.0.1", "0.0.2", "0.0.3"] {
-                let details = CrateDetails::new(&db.conn(), "foo", version).unwrap();
+                let details = CrateDetails::new(&mut db.conn(), "foo", version).unwrap();
                 assert_eq!(details.latest_release().version, "0.0.3");
             }
 
@@ -628,7 +628,7 @@ mod tests {
                 })
                 .create()?;
 
-            let details = CrateDetails::new(&db.conn(), "foo", "0.0.1").unwrap();
+            let details = CrateDetails::new(&mut db.conn(), "foo", "0.0.1").unwrap();
             assert_eq!(
                 details.owners,
                 vec![("foobar".into(), "https://example.org/foobar".into())]
@@ -652,7 +652,7 @@ mod tests {
                 })
                 .create()?;
 
-            let details = CrateDetails::new(&db.conn(), "foo", "0.0.1").unwrap();
+            let details = CrateDetails::new(&mut db.conn(), "foo", "0.0.1").unwrap();
             let mut owners = details.owners.clone();
             owners.sort();
             assert_eq!(
@@ -675,7 +675,7 @@ mod tests {
                 })
                 .create()?;
 
-            let details = CrateDetails::new(&db.conn(), "foo", "0.0.1").unwrap();
+            let details = CrateDetails::new(&mut db.conn(), "foo", "0.0.1").unwrap();
             assert_eq!(
                 details.owners,
                 vec![("barfoo".into(), "https://example.org/barfoo".into())]
@@ -693,7 +693,7 @@ mod tests {
                 })
                 .create()?;
 
-            let details = CrateDetails::new(&db.conn(), "foo", "0.0.1").unwrap();
+            let details = CrateDetails::new(&mut db.conn(), "foo", "0.0.1").unwrap();
             assert_eq!(
                 details.owners,
                 vec![("barfoo".into(), "https://example.org/barfoov2".into())]
diff --git a/src/web/error.rs b/src/web/error.rs
index 0abcc3e92..1463a69ff 100644
--- a/src/web/error.rs
+++ b/src/web/error.rs
@@ -3,8 +3,7 @@ use crate::{
     web::{page::WebPage, releases::Search, ErrorPage},
 };
 use failure::Fail;
-use iron::{status::Status, Handler, IronError, IronResult, Plugin, Request, Response};
-use params::{Params, Value};
+use iron::{status::Status, Handler, IronError, IronResult, Request, Response};
 use std::{error::Error, fmt};
 
 #[derive(Debug, Copy, Clone)]
@@ -54,13 +53,13 @@ impl Handler for Nope {
             }
 
             Nope::NoResults => {
-                let params = req.get::<Params>().unwrap();
+                let mut params = req.url.as_ref().query_pairs();
 
-                if let Some(Value::String(ref query)) = params.find(&["query"]) {
+                if let Some((_, query)) = params.find(|(key, _)| key == "query") {
                     // this used to be a search
                     Search {
                         title: format!("No crates found matching '{}'", query),
-                        search_query: Some(query.to_owned()),
+                        search_query: Some(query.into_owned()),
                         status: Status::NotFound,
                         ..Default::default()
                     }
diff --git a/src/web/mod.rs b/src/web/mod.rs
index 53bca3942..51b3d0eb7 100644
--- a/src/web/mod.rs
+++ b/src/web/mod.rs
@@ -90,7 +90,7 @@ use iron::{
     Chain, Handler, Iron, IronError, IronResult, Listening, Request, Response, Url,
 };
 use page::TemplateData;
-use postgres::Connection;
+use postgres::Client;
 use router::NoRoute;
 use semver::{Version, VersionReq};
 use serde::Serialize;
@@ -284,7 +284,7 @@ impl MatchSemver {
 /// This function will also check for crates where dashes in the name (`-`) have been replaced with
 /// underscores (`_`) and vice-versa. The return value will indicate whether the crate name has
 /// been matched exactly, or if there has been a "correction" in the name that matched instead.
-fn match_version(conn: &Connection, name: &str, version: Option<&str>) -> Option<MatchVersion> {
+fn match_version(conn: &mut Client, name: &str, version: Option<&str>) -> Option<MatchVersion> {
     // version is an Option<&str> from router::Router::get, need to decode first
     use iron::url::percent_encoding::percent_decode;
 
@@ -369,17 +369,18 @@ fn match_version(conn: &Connection, name: &str, version: Option<&str>) -> Option
 
 /// Wrapper around the Markdown parser and renderer to render markdown
 fn render_markdown(text: &str) -> String {
-    use comrak::{markdown_to_html, ComrakOptions};
-
-    let options = {
-        let mut options = ComrakOptions::default();
-        options.safe = true;
-        options.ext_superscript = true;
-        options.ext_table = true;
-        options.ext_autolink = true;
-        options.ext_tasklist = true;
-        options.ext_strikethrough = true;
-        options
+    use comrak::{markdown_to_html, ComrakExtensionOptions, ComrakOptions};
+
+    let options = ComrakOptions {
+        extension: ComrakExtensionOptions {
+            superscript: true,
+            table: true,
+            autolink: true,
+            tasklist: true,
+            strikethrough: true,
+            ..ComrakExtensionOptions::default()
+        },
+        ..ComrakOptions::default()
     };
 
     markdown_to_html(text, &options)
@@ -399,7 +400,7 @@ impl Server {
         storage: Arc<Storage>,
     ) -> Result<Self, Error> {
         // Initialize templates
-        let template_data = Arc::new(TemplateData::new(&*db.get()?)?);
+        let template_data = Arc::new(TemplateData::new(&mut *db.get()?)?);
         if reload_templates {
             TemplateData::start_template_reloading(template_data.clone(), db.clone());
         }
@@ -589,7 +590,7 @@ pub(crate) struct MetaData {
 }
 
 impl MetaData {
-    fn from_crate(conn: &Connection, name: &str, version: &str) -> Option<MetaData> {
+    fn from_crate(conn: &mut Client, name: &str, version: &str) -> Option<MetaData> {
         let rows = conn
             .query(
                 "SELECT crates.name,
@@ -649,7 +650,7 @@ mod test {
     }
 
     fn version(v: Option<&str>, db: &TestDatabase) -> Option<String> {
-        match_version(&db.conn(), "foo", v)
+        match_version(&mut db.conn(), "foo", v)
             .and_then(|version| version.assume_exact().map(|semver| semver.into_parts().0))
     }
 
diff --git a/src/web/page/templates.rs b/src/web/page/templates.rs
index 8d02af143..eec8ce56c 100644
--- a/src/web/page/templates.rs
+++ b/src/web/page/templates.rs
@@ -4,7 +4,7 @@ use chrono::{DateTime, Utc};
 use failure::ResultExt;
 use notify::{watcher, RecursiveMode, Watcher};
 use path_slash::PathExt;
-use postgres::Connection;
+use postgres::Client;
 use serde_json::Value;
 use std::{
     collections::HashMap,
@@ -27,7 +27,7 @@ pub(crate) struct TemplateData {
 }
 
 impl TemplateData {
-    pub(crate) fn new(conn: &Connection) -> Result<Self> {
+    pub(crate) fn new(conn: &mut Client) -> Result<Self> {
         log::trace!("Loading templates");
 
         let data = Self {
@@ -50,10 +50,10 @@ impl TemplateData {
 
         thread::spawn(move || {
             fn reload(template_data: &TemplateData, pool: &Pool) -> Result<()> {
-                let conn = pool.get()?;
+                let mut conn = pool.get()?;
                 template_data
                     .templates
-                    .swap(Arc::new(load_templates(&conn)?));
+                    .swap(Arc::new(load_templates(&mut conn)?));
                 log::info!("Reloaded templates");
 
                 Ok(())
@@ -72,7 +72,7 @@ impl TemplateData {
     }
 }
 
-fn load_rustc_resource_suffix(conn: &Connection) -> Result<String> {
+fn load_rustc_resource_suffix(conn: &mut Client) -> Result<String> {
     let res = conn.query(
         "SELECT value FROM config WHERE name = 'rustc_version';",
         &[],
@@ -82,7 +82,7 @@ fn load_rustc_resource_suffix(conn: &Connection) -> Result<String> {
         failure::bail!("missing rustc version");
     }
 
-    if let Some(Ok(vers)) = res.get(0).get_opt::<_, Value>("value") {
+    if let Ok(vers) = res[0].try_get::<_, Value>("value") {
         if let Some(vers_str) = vers.as_str() {
             return Ok(crate::utils::parse_rustc_version(vers_str)?);
         }
@@ -91,7 +91,7 @@ fn load_rustc_resource_suffix(conn: &Connection) -> Result<String> {
     failure::bail!("failed to parse the rustc version");
 }
 
-pub(super) fn load_templates(conn: &Connection) -> Result<Tera> {
+pub(super) fn load_templates(conn: &mut Client) -> Result<Tera> {
     // This uses a custom function to find the templates in the filesystem instead of Tera's
     // builtin way (passing a glob expression to Tera::new), speeding up the startup of the
     // application and running the tests.
@@ -258,7 +258,7 @@ mod tests {
         crate::test::wrapper(|env| {
             let db = env.db();
 
-            let tera = load_templates(&db.conn()).unwrap();
+            let tera = load_templates(&mut db.conn()).unwrap();
             tera.check_macro_files().unwrap();
 
             Ok(())
diff --git a/src/web/releases.rs b/src/web/releases.rs
index 34d6ff080..4f8e015fb 100644
--- a/src/web/releases.rs
+++ b/src/web/releases.rs
@@ -12,9 +12,9 @@ use iron::{
     headers::{ContentType, Expires, HttpDate},
     mime::{Mime, SubLevel, TopLevel},
     modifiers::Redirect,
-    status, IronError, IronResult, Plugin, Request, Response, Url,
+    status, IronError, IronResult, Request, Response, Url,
 };
-use postgres::Connection;
+use postgres::Client;
 use router::Router;
 use serde::Serialize;
 use serde_json::Value;
@@ -65,7 +65,7 @@ impl Default for Order {
     }
 }
 
-pub(crate) fn get_releases(conn: &Connection, page: i64, limit: i64, order: Order) -> Vec<Release> {
+pub(crate) fn get_releases(conn: &mut Client, page: i64, limit: i64, order: Order) -> Vec<Release> {
     let offset = (page - 1) * limit;
 
     // WARNING: it is _crucial_ that this always be hard-coded and NEVER be user input
@@ -91,7 +91,7 @@ pub(crate) fn get_releases(conn: &Connection, page: i64, limit: i64, order: Orde
         ordering,
     );
 
-    conn.query(&query, &[&limit, &offset, &filter_failed])
+    conn.query(query.as_str(), &[&limit, &offset, &filter_failed])
         .unwrap()
         .into_iter()
         .map(|row| Release {
@@ -107,7 +107,7 @@ pub(crate) fn get_releases(conn: &Connection, page: i64, limit: i64, order: Orde
 }
 
 fn get_releases_by_author(
-    conn: &Connection,
+    conn: &mut Client,
     page: i64,
     limit: i64,
     author: &str,
@@ -130,7 +130,7 @@ fn get_releases_by_author(
         WHERE authors.slug = $1
         ORDER BY crates.github_stars DESC
         LIMIT $2 OFFSET $3";
-    let query = conn.query(&query, &[&author, &limit, &offset]).unwrap();
+    let query = conn.query(query, &[&author, &limit, &offset]).unwrap();
 
     let mut author_name = None;
     let packages = query
@@ -156,7 +156,7 @@ fn get_releases_by_author(
 }
 
 fn get_releases_by_owner(
-    conn: &Connection,
+    conn: &mut Client,
     page: i64,
     limit: i64,
     author: &str,
@@ -179,7 +179,7 @@ fn get_releases_by_owner(
                  WHERE owners.login = $1
                  ORDER BY crates.github_stars DESC
                  LIMIT $2 OFFSET $3";
-    let query = conn.query(&query, &[&author, &limit, &offset]).unwrap();
+    let query = conn.query(query, &[&author, &limit, &offset]).unwrap();
 
     let mut author_name = None;
     let packages = query
@@ -221,7 +221,7 @@ fn get_releases_by_owner(
 /// Returns 0 and an empty Vec when no results are found or if a database error occurs
 ///
 fn get_search_results(
-    conn: &Connection,
+    conn: &mut Client,
     mut query: &str,
     page: i64,
     limit: i64,
@@ -301,8 +301,8 @@ impl_webpage! {
 }
 
 pub fn home_page(req: &mut Request) -> IronResult<Response> {
-    let conn = extension!(req, Pool).get()?;
-    let recent_releases = get_releases(&conn, 1, RELEASES_IN_HOME, Order::ReleaseTime);
+    let mut conn = extension!(req, Pool).get()?;
+    let recent_releases = get_releases(&mut conn, 1, RELEASES_IN_HOME, Order::ReleaseTime);
 
     HomePage { recent_releases }.into_response(req)
 }
@@ -318,8 +318,8 @@ impl_webpage! {
 }
 
 pub fn releases_feed_handler(req: &mut Request) -> IronResult<Response> {
-    let conn = extension!(req, Pool).get()?;
-    let recent_releases = get_releases(&conn, 1, RELEASES_IN_FEED, Order::ReleaseTime);
+    let mut conn = extension!(req, Pool).get()?;
+    let recent_releases = get_releases(&mut conn, 1, RELEASES_IN_FEED, Order::ReleaseTime);
 
     ReleaseFeed { recent_releases }.into_response(req)
 }
@@ -371,8 +371,8 @@ fn releases_handler(req: &mut Request, release_type: ReleaseType) -> IronResult<
     };
 
     let releases = {
-        let conn = extension!(req, Pool).get()?;
-        get_releases(&conn, page_number, RELEASES_IN_RELEASES, release_order)
+        let mut conn = extension!(req, Pool).get()?;
+        get_releases(&mut conn, page_number, RELEASES_IN_RELEASES, release_order)
     };
 
     // Show next and previous page buttons
@@ -422,20 +422,20 @@ pub fn author_handler(req: &mut Request) -> IronResult<Response> {
         .ok_or_else(|| IronError::new(Nope::CrateNotFound, status::NotFound))?;
 
     let (author_name, releases) = {
-        let conn = extension!(req, Pool).get()?;
+        let mut conn = extension!(req, Pool).get()?;
 
         if author.starts_with('@') {
             let mut author = author.split('@');
 
             get_releases_by_owner(
-                &conn,
+                &mut conn,
                 page_number,
                 RELEASES_IN_RELEASES,
                 // TODO: Is this fallible?
                 cexpect!(req, author.nth(1)),
             )
         } else {
-            get_releases_by_author(&conn, page_number, RELEASES_IN_RELEASES, author)
+            get_releases_by_author(&mut conn, page_number, RELEASES_IN_RELEASES, author)
         }
     };
 
@@ -498,17 +498,20 @@ impl_webpage! {
 }
 
 pub fn search_handler(req: &mut Request) -> IronResult<Response> {
-    use params::{Params, Value};
+    let url = req.url.as_ref();
+    let mut params = url.query_pairs();
+    let query = params.find(|(key, _)| key == "query");
+    let mut conn = extension!(req, Pool).get()?;
 
-    let params = ctry!(req, req.get::<Params>());
-    let query = params.find(&["query"]);
-    let conn = extension!(req, Pool).get()?;
-
-    if let Some(Value::String(query)) = query {
+    if let Some((_, query)) = query {
         // check if I am feeling lucky button pressed and redirect user to crate page
         // if there is a match
         // TODO: Redirecting to latest doc might be more useful
-        if params.find(&["i-am-feeling-lucky"]).is_some() {
+        // NOTE: calls `query_pairs()` again because iterators are lazy and only yield items once
+        if url
+            .query_pairs()
+            .any(|(key, _)| key == "i-am-feeling-lucky")
+        {
             // redirect to a random crate if query is empty
             if query.is_empty() {
                 // FIXME: This is a fast query but using a constant
@@ -553,7 +556,7 @@ pub fn search_handler(req: &mut Request) -> IronResult<Response> {
             // since we never pass a version into `match_version` here, we'll never get
             // `MatchVersion::Exact`, so the distinction between `Exact` and `Semver` doesn't
             // matter
-            if let Some(matchver) = match_version(&conn, &query, None) {
+            if let Some(matchver) = match_version(&mut conn, &query, None) {
                 let (version, id) = matchver.version.into_parts();
                 let query = matchver.corrected_name.unwrap_or_else(|| query.to_string());
 
@@ -601,7 +604,7 @@ pub fn search_handler(req: &mut Request) -> IronResult<Response> {
             }
         }
 
-        let (_, results) = get_search_results(&conn, &query, 1, RELEASES_IN_RELEASES);
+        let (_, results) = get_search_results(&mut conn, &query, 1, RELEASES_IN_RELEASES);
         let title = if results.is_empty() {
             format!("No results found for '{}'", query)
         } else {
@@ -612,7 +615,7 @@ pub fn search_handler(req: &mut Request) -> IronResult<Response> {
         Search {
             title,
             results,
-            search_query: Some(query.to_owned()),
+            search_query: Some(query.into_owned()),
             ..Default::default()
         }
         .into_response(req)
@@ -632,7 +635,7 @@ impl_webpage! {
 }
 
 pub fn activity_handler(req: &mut Request) -> IronResult<Response> {
-    let conn = extension!(req, Pool).get()?;
+    let mut conn = extension!(req, Pool).get()?;
     let activity_data: Value = ctry!(
         req,
         conn.query(
@@ -714,7 +717,7 @@ mod tests {
                 .version("0.0.0")
                 .create()?;
 
-            let (num_results, results) = get_search_results(&db.conn(), "foo", 1, 100);
+            let (num_results, results) = get_search_results(&mut db.conn(), "foo", 1, 100);
             assert_eq!(num_results, 4);
 
             let mut results = results.into_iter();
@@ -743,7 +746,7 @@ mod tests {
 
             for name in near_matches.iter() {
                 let (num_results, mut results) =
-                    dbg!(get_search_results(&db.conn(), *name, 1, 100));
+                    dbg!(get_search_results(&mut db.conn(), *name, 1, 100));
                 assert_eq!(num_results, 3);
 
                 for name in releases.iter() {
@@ -766,7 +769,7 @@ mod tests {
                 .build_result_successful(false)
                 .create()?;
 
-            let (num_results, results) = get_search_results(&db.conn(), "regex", 1, 100);
+            let (num_results, results) = get_search_results(&mut db.conn(), "regex", 1, 100);
             assert_eq!(num_results, 0);
 
             let results = results.into_iter();
@@ -786,7 +789,7 @@ mod tests {
                 .yanked(true)
                 .create()?;
 
-            let (num_results, results) = get_search_results(&db.conn(), "regex", 1, 100);
+            let (num_results, results) = get_search_results(&mut db.conn(), "regex", 1, 100);
             assert_eq!(num_results, 0);
 
             let results = results.into_iter();
@@ -802,7 +805,7 @@ mod tests {
             let db = env.db();
             env.fake_release().name("regex").version("0.0.0").create()?;
 
-            let (num_results, results) = get_search_results(&db.conn(), "redex", 1, 100);
+            let (num_results, results) = get_search_results(&mut db.conn(), "redex", 1, 100);
             assert_eq!(num_results, 1);
 
             let mut results = results.into_iter();
@@ -824,7 +827,7 @@ mod tests {
     //             .create()?;
     //
     //         let (num_results, results) =
-    //             get_search_results(&db.conn(), "supercalifragilisticexpialidocious", 1, 100);
+    //             get_search_results(&mut db.conn(), "supercalifragilisticexpialidocious", 1, 100);
     //         assert_eq!(num_results, 1);
     //
     //         let mut results = results.into_iter();
@@ -850,7 +853,7 @@ mod tests {
                 .name("something_completely_unrelated")
                 .create()?;
 
-            let (num_results, results) = get_search_results(&db.conn(), "something", 1, 2);
+            let (num_results, results) = get_search_results(&mut db.conn(), "something", 1, 2);
             assert_eq!(num_results, 4);
 
             let mut results = results.into_iter();
@@ -873,7 +876,7 @@ mod tests {
                 .name("something_completely_unrelated")
                 .create()?;
 
-            let (num_results, results) = get_search_results(&db.conn(), "something", 2, 2);
+            let (num_results, results) = get_search_results(&mut db.conn(), "something", 2, 2);
             assert_eq!(num_results, 4);
 
             let mut results = results.into_iter();
@@ -917,7 +920,7 @@ mod tests {
                 .version("0.0.0")
                 .create()?;
 
-            let (num_results, results) = get_search_results(&db.conn(), "somethang", 1, 100);
+            let (num_results, results) = get_search_results(&mut db.conn(), "somethang", 1, 100);
             assert_eq!(num_results, 1);
 
             let mut results = results.into_iter();
@@ -949,7 +952,7 @@ mod tests {
     //             .create()?;
     //
     //         let (num_results, results) =
-    //             get_search_results(&db.conn(), "name_better_than_description", 1, 100);
+    //             get_search_results(&mut db.conn(), "name_better_than_description", 1, 100);
     //         assert_eq!(num_results, 2);
     //
     //         let mut results = results.into_iter();
@@ -982,7 +985,7 @@ mod tests {
                 .name("i_am_useless_and_mean_nothing")
                 .create()?;
 
-            let (num_results, results) = get_search_results(&db.conn(), "match", 1, 100);
+            let (num_results, results) = get_search_results(&mut db.conn(), "match", 1, 100);
             assert_eq!(num_results, 3);
 
             let mut results = results.into_iter();
@@ -1003,7 +1006,7 @@ mod tests {
             env.fake_release().name("matcb").downloads(10).create()?;
             env.fake_release().name("matcc").downloads(1).create()?;
 
-            let (num_results, results) = get_search_results(&db.conn(), "match", 1, 100);
+            let (num_results, results) = get_search_results(&mut db.conn(), "match", 1, 100);
             assert_eq!(num_results, 3);
 
             let mut results = results.into_iter();
diff --git a/src/web/rustdoc.rs b/src/web/rustdoc.rs
index f4c3f2ae0..99d8091ce 100644
--- a/src/web/rustdoc.rs
+++ b/src/web/rustdoc.rs
@@ -12,7 +12,7 @@ use crate::{
 use iron::{
     headers::{CacheControl, CacheDirective, Expires, HttpDate},
     modifiers::Redirect,
-    status, Handler, IronError, IronResult, Plugin, Request, Response, Url,
+    status, Handler, IronError, IronResult, Request, Response, Url,
 };
 use router::Router;
 use serde::Serialize;
@@ -128,7 +128,7 @@ pub fn rustdoc_redirector_handler(req: &mut Request) -> IronResult<Response> {
     }
 
     let router = extension!(req, Router);
-    let conn = extension!(req, Pool).get()?;
+    let mut conn = extension!(req, Pool).get()?;
 
     // this handler should never called without crate pattern
     let crate_name = cexpect!(req, router.find("crate"));
@@ -141,7 +141,7 @@ pub fn rustdoc_redirector_handler(req: &mut Request) -> IronResult<Response> {
 
     // it doesn't matter if the version that was given was exact or not, since we're redirecting
     // anyway
-    let (version, id) = match match_version(&conn, &crate_name, req_version) {
+    let (version, id) = match match_version(&mut conn, &crate_name, req_version) {
         Some(v) => {
             if let Some(new_name) = v.corrected_name {
                 // `match_version` checked against -/_ typos, so if we have a name here we should
@@ -168,7 +168,7 @@ pub fn rustdoc_redirector_handler(req: &mut Request) -> IronResult<Response> {
             ),
         );
 
-        (rows.get(0).get(0), rows.get(0).get(1))
+        (rows[0].get(0), rows[0].get(1))
     };
 
     if target == Some("index.html") || target == Some(&target_name) {
@@ -216,7 +216,7 @@ pub fn rustdoc_html_server_handler(req: &mut Request) -> IronResult<Response> {
     );
 
     let pool = extension!(req, Pool);
-    let conn = pool.get()?;
+    let mut conn = pool.get()?;
     let config = extension!(req, Config);
     let storage = extension!(req, Storage);
     let mut req_path = req.url.path();
@@ -246,7 +246,7 @@ pub fn rustdoc_html_server_handler(req: &mut Request) -> IronResult<Response> {
     // * If there is an exact match, but the requested crate name was corrected (dashes vs. underscores), redirect to the corrected name.
     // * If there is a semver (but not exact) match, redirect to the exact version.
     // * Otherwise, return a 404.
-    let version = if let Some(match_vers) = match_version(&conn, &name, url_version) {
+    let version = if let Some(match_vers) = match_version(&mut conn, &name, url_version) {
         match match_vers.version {
             MatchSemver::Exact((version, _)) => {
                 // Redirect when the requested crate name isn't correct
@@ -274,7 +274,7 @@ pub fn rustdoc_html_server_handler(req: &mut Request) -> IronResult<Response> {
 
     // Get the crate's details from the database
     // NOTE: we know this crate must exist because we just checked it above (or else `match_version` is buggy)
-    let krate = cexpect!(req, CrateDetails::new(&conn, &name, &version));
+    let krate = cexpect!(req, CrateDetails::new(&mut conn, &name, &version));
 
     // if visiting the full path to the default target, remove the target from the path
     // expects a req_path that looks like `[/:target]/.*`
@@ -445,12 +445,12 @@ pub fn target_redirect_handler(req: &mut Request) -> IronResult<Response> {
     let version = cexpect!(req, router.find("version"));
 
     let pool = extension!(req, Pool);
-    let conn = pool.get()?;
+    let mut conn = pool.get()?;
     let storage = extension!(req, Storage);
     let config = extension!(req, Config);
     let base = redirect_base(req);
 
-    let crate_details = match CrateDetails::new(&conn, &name, &version) {
+    let crate_details = match CrateDetails::new(&mut conn, &name, &version) {
         Some(krate) => krate,
         None => return Err(IronError::new(Nope::ResourceNotFound, status::NotFound)),
     };
@@ -491,61 +491,60 @@ pub fn target_redirect_handler(req: &mut Request) -> IronResult<Response> {
 pub fn badge_handler(req: &mut Request) -> IronResult<Response> {
     use badge::{Badge, BadgeOptions};
     use iron::headers::ContentType;
-    use params::{Params, Value};
-
     let version = {
-        let params = ctry!(req, req.get_ref::<Params>());
-        match params.find(&["version"]) {
-            Some(&Value::String(ref version)) => version.clone(),
-            _ => "*".to_owned(),
+        let mut params = req.url.as_ref().query_pairs();
+        match params.find(|(key, _)| key == "version") {
+            Some((_, version)) => version.into_owned(),
+            None => "*".to_owned(),
         }
     };
 
     let name = cexpect!(req, extension!(req, Router).find("crate"));
-    let conn = extension!(req, Pool).get()?;
-
-    let options = match match_version(&conn, &name, Some(&version)).and_then(|m| m.assume_exact()) {
-        Some(MatchSemver::Exact((version, id))) => {
-            let rows = ctry!(
-                req,
-                conn.query(
-                    "SELECT rustdoc_status
+    let mut conn = extension!(req, Pool).get()?;
+
+    let options =
+        match match_version(&mut conn, &name, Some(&version)).and_then(|m| m.assume_exact()) {
+            Some(MatchSemver::Exact((version, id))) => {
+                let rows = ctry!(
+                    req,
+                    conn.query(
+                        "SELECT rustdoc_status
                      FROM releases
                      WHERE releases.id = $1",
-                    &[&id]
-                ),
-            );
-            if !rows.is_empty() && rows.get(0).get(0) {
-                BadgeOptions {
-                    subject: "docs".to_owned(),
-                    status: version,
-                    color: "#4d76ae".to_owned(),
-                }
-            } else {
-                BadgeOptions {
-                    subject: "docs".to_owned(),
-                    status: version,
-                    color: "#e05d44".to_owned(),
+                        &[&id]
+                    ),
+                );
+                if !rows.is_empty() && rows[0].get(0) {
+                    BadgeOptions {
+                        subject: "docs".to_owned(),
+                        status: version,
+                        color: "#4d76ae".to_owned(),
+                    }
+                } else {
+                    BadgeOptions {
+                        subject: "docs".to_owned(),
+                        status: version,
+                        color: "#e05d44".to_owned(),
+                    }
                 }
             }
-        }
 
-        Some(MatchSemver::Semver((version, _))) => {
-            let base_url = format!("{}/{}/badge.svg", redirect_base(req), name);
-            let url = ctry!(
-                req,
-                iron::url::Url::parse_with_params(&base_url, &[("version", version)]),
-            );
-            let iron_url = ctry!(req, Url::from_generic_url(url));
-            return Ok(super::redirect(iron_url));
-        }
+            Some(MatchSemver::Semver((version, _))) => {
+                let base_url = format!("{}/{}/badge.svg", redirect_base(req), name);
+                let url = ctry!(
+                    req,
+                    iron::url::Url::parse_with_params(&base_url, &[("version", version)]),
+                );
+                let iron_url = ctry!(req, Url::from_generic_url(url));
+                return Ok(super::redirect(iron_url));
+            }
 
-        None => BadgeOptions {
-            subject: "docs".to_owned(),
-            status: "no builds".to_owned(),
-            color: "#e05d44".to_owned(),
-        },
-    };
+            None => BadgeOptions {
+                subject: "docs".to_owned(),
+                status: "no builds".to_owned(),
+                color: "#e05d44".to_owned(),
+            },
+        };
 
     let mut resp = Response::with((status::Ok, ctry!(req, Badge::new(options)).to_svg()));
     resp.headers
diff --git a/src/web/sitemap.rs b/src/web/sitemap.rs
index 6446e09d7..c1944554d 100644
--- a/src/web/sitemap.rs
+++ b/src/web/sitemap.rs
@@ -21,7 +21,7 @@ impl_webpage! {
 }
 
 pub fn sitemap_handler(req: &mut Request) -> IronResult<Response> {
-    let conn = extension!(req, Pool).get()?;
+    let mut conn = extension!(req, Pool).get()?;
     let query = conn
         .query(
             "SELECT DISTINCT ON (crates.name)
@@ -66,14 +66,14 @@ struct About {
 impl_webpage!(About = "core/about.html");
 
 pub fn about_handler(req: &mut Request) -> IronResult<Response> {
-    let conn = extension!(req, Pool).get()?;
+    let mut conn = extension!(req, Pool).get()?;
     let res = ctry!(
         req,
         conn.query("SELECT value FROM config WHERE name = 'rustc_version'", &[]),
     );
 
     let rustc_version = res.iter().next().and_then(|row| {
-        if let Some(Ok(Value::String(version))) = row.get_opt(0) {
+        if let Ok(Some(Value::String(version))) = row.try_get(0) {
             Some(version)
         } else {
             None
diff --git a/src/web/source.rs b/src/web/source.rs
index 100d4b3d6..5294a4ab7 100644
--- a/src/web/source.rs
+++ b/src/web/source.rs
@@ -7,7 +7,7 @@ use crate::{
     Config, Storage,
 };
 use iron::{status::Status, IronError, IronResult, Request, Response};
-use postgres::Connection;
+use postgres::Client;
 use router::Router;
 use serde::Serialize;
 use serde_json::Value;
@@ -47,7 +47,7 @@ impl FileList {
     /// This function is only returning FileList for requested directory. If is empty,
     /// it will return list of files (and dirs) for root directory. req_path must be a
     /// directory or empty for root directory.
-    fn from_path(conn: &Connection, name: &str, version: &str, req_path: &str) -> Option<FileList> {
+    fn from_path(conn: &mut Client, name: &str, version: &str, req_path: &str) -> Option<FileList> {
         let rows = conn
             .query(
                 "SELECT crates.name,
@@ -68,7 +68,7 @@ impl FileList {
             return None;
         }
 
-        let files: Value = rows.get(0).get_opt(5).unwrap().ok()?;
+        let files: Value = rows[0].try_get(5).ok()?;
 
         let mut file_list = Vec::new();
         if let Some(files) = files.as_array() {
@@ -127,12 +127,12 @@ impl FileList {
 
             Some(FileList {
                 metadata: MetaData {
-                    name: rows.get(0).get(0),
-                    version: rows.get(0).get(1),
-                    description: rows.get(0).get(2),
-                    target_name: rows.get(0).get(3),
-                    rustdoc_status: rows.get(0).get(4),
-                    default_target: rows.get(0).get(6),
+                    name: rows[0].get(0),
+                    version: rows[0].get(1),
+                    description: rows[0].get(2),
+                    target_name: rows[0].get(3),
+                    rustdoc_status: rows[0].get(4),
+                    default_target: rows[0].get(6),
                 },
                 files: file_list,
             })
@@ -185,7 +185,7 @@ pub fn source_browser_handler(req: &mut Request) -> IronResult<Response> {
     };
 
     let pool = extension!(req, Pool);
-    let conn = pool.get()?;
+    let mut conn = pool.get()?;
     let storage = extension!(req, Storage);
     let config = extension!(req, Config);
 
@@ -213,7 +213,7 @@ pub fn source_browser_handler(req: &mut Request) -> IronResult<Response> {
         (None, false)
     };
 
-    let file_list = FileList::from_path(&conn, &name, &version, &req_path)
+    let file_list = FileList::from_path(&mut conn, &name, &version, &req_path)
         .ok_or_else(|| IronError::new(Nope::NoResults, Status::NotFound))?;
 
     SourcePage {