diff --git a/Cargo.lock b/Cargo.lock
index 9c359b464ef1d..6ddc7944092da 100644
--- a/Cargo.lock
+++ b/Cargo.lock
@@ -1642,9 +1642,9 @@ dependencies = [
 
 [[package]]
 name = "jobserver"
-version = "0.1.19"
+version = "0.1.21"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "67b06c1b455f1cf4269a8cfc320ab930a810e2375a42af5075eb8a8b36405ce0"
+checksum = "5c71313ebb9439f74b00d9d2dcec36440beaf57a6aa0623068441dd7cd81a7f2"
 dependencies = [
  "libc",
 ]
diff --git a/RELEASES.md b/RELEASES.md
index 02edb0cf83c98..10e485c1a40d5 100644
--- a/RELEASES.md
+++ b/RELEASES.md
@@ -62,9 +62,9 @@ Cargo
 - [Cargo.lock now uses a more git friendly format that should help to reduce
   merge conflicts.][cargo/7579]
 - [You can now override specific dependencies's build settings][cargo/7591] E.g.
-  `[profile.dev.overrides.image] opt-level = 2` sets the `image` crate's
+  `[profile.dev.package.image] opt-level = 2` sets the `image` crate's
   optimisation level to `2` for debug builds. You can also use
-  `[profile.<profile>.build_overrides]` to override build scripts and
+  `[profile.<profile>.build-override]` to override build scripts and
   their dependencies.
 
 Misc
diff --git a/src/stage0.txt b/src/stage0.txt
index aa55aa6a7e25d..99d2062d3f8ad 100644
--- a/src/stage0.txt
+++ b/src/stage0.txt
@@ -12,7 +12,7 @@
 # source tarball for a stable release you'll likely see `1.x.0` for rustc and
 # `0.x.0` for Cargo where they were released on `date`.
 
-date: 2020-01-27
+date: 2020-01-30
 rustc: 1.41.0
 cargo: 0.42.0
 
@@ -39,4 +39,4 @@ cargo: 0.42.0
 # looking at a beta source tarball and it's uncommented we'll shortly comment it
 # out.
 
-dev: 1
+#dev: 1
diff --git a/src/tools/cargo b/src/tools/cargo
index 9d32b7b014090..86334295e82ef 160000
--- a/src/tools/cargo
+++ b/src/tools/cargo
@@ -1 +1 @@
-Subproject commit 9d32b7b01409024b165545c568b1525d86e2b7cb
+Subproject commit 86334295e82ef241fe5ec618d9fb612585bd7c1f