From 295002deba8013f7ec2e4f892f664ebe5d84addb Mon Sep 17 00:00:00 2001
From: Jiang Liu <gerry@linux.alibaba.com>
Date: Sat, 28 May 2022 22:27:31 +0800
Subject: [PATCH] Clean up clippy warnings

Signed-off-by: Jiang Liu <gerry@linux.alibaba.com>
---
 Cargo.lock                                   | 1067 +++++++++---------
 api/src/http.rs                              |    2 +-
 blobfs/src/lib.rs                            |   13 +-
 blobfs/src/sync_io.rs                        |    6 +-
 rafs/src/fs.rs                               |    6 +-
 rafs/src/lib.rs                              |    2 +-
 rafs/src/metadata/cached_v5.rs               |    4 +-
 rafs/src/metadata/direct_v5.rs               |   10 +-
 rafs/src/metadata/direct_v6.rs               |    8 +-
 rafs/src/metadata/layout/mod.rs              |    2 +-
 rafs/src/metadata/layout/v5.rs               |   27 +-
 rafs/src/metadata/layout/v6.rs               |    7 +-
 rafs/src/metadata/md_v5.rs                   |    2 +-
 rafs/src/metadata/md_v6.rs                   |    4 +-
 rafs/src/metadata/mod.rs                     |    4 +-
 rafs/src/metadata/noop.rs                    |    7 +-
 rafs/src/mock/mock_inode.rs                  |    1 +
 rafs/src/mock/mock_super.rs                  |    9 +-
 src/bin/nydus-image/builder/diff.rs          |    6 +-
 src/bin/nydus-image/builder/directory.rs     |    2 +-
 src/bin/nydus-image/builder/stargz.rs        |    9 +-
 src/bin/nydus-image/core/blob_compact.rs     |    1 +
 src/bin/nydus-image/core/bootstrap.rs        |   10 +-
 src/bin/nydus-image/core/context.rs          |    3 +-
 src/bin/nydus-image/core/node.rs             |   14 +-
 src/bin/nydus-image/core/tree.rs             |    8 +-
 src/bin/nydus-image/inspect.rs               |    8 +-
 src/bin/nydus-image/main.rs                  |   28 +-
 src/bin/nydus-image/merge.rs                 |    6 +-
 src/bin/nydus-image/trace.rs                 |   10 +-
 src/bin/nydusctl/commands.rs                 |   10 +-
 src/bin/nydusd/fusedev.rs                    |    2 +-
 src/bin/nydusd/main.rs                       |   18 +-
 storage/Cargo.toml                           |    1 +
 storage/src/backend/connection.rs            |    8 +-
 storage/src/backend/localfs.rs               |   16 +-
 storage/src/backend/mod.rs                   |    7 +-
 storage/src/backend/oss.rs                   |    3 +-
 storage/src/backend/registry.rs              |    1 +
 storage/src/cache/cachedfile.rs              |    2 +-
 storage/src/cache/filecache/mod.rs           |    4 +-
 storage/src/cache/state/blob_state_map.rs    |   80 +-
 storage/src/cache/state/indexed_chunk_map.rs |   24 +-
 storage/src/cache/worker.rs                  |    1 +
 storage/src/device.rs                        |    6 +-
 storage/src/meta/mod.rs                      |   29 +-
 storage/src/remote/connection.rs             |    2 +-
 storage/src/remote/message.rs                |   12 +-
 storage/src/remote/server.rs                 |    6 +-
 storage/src/test.rs                          |    1 +
 storage/src/utils.rs                         |   14 +-
 tests/builder.rs                             |    2 +-
 tests/diff.rs                                |   21 +-
 53 files changed, 754 insertions(+), 802 deletions(-)

diff --git a/Cargo.lock b/Cargo.lock
index ed5d0cb6ef4..9785ef30944 100644
--- a/Cargo.lock
+++ b/Cargo.lock
@@ -1,19 +1,21 @@
 # This file is automatically @generated by Cargo.
 # It is not intended for manual editing.
+version = 3
+
 [[package]]
 name = "addr2line"
-version = "0.14.1"
+version = "0.17.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "a55f82cfe485775d02112886f4169bde0c5894d75e79ead7eafe7e40a25e45f7"
+checksum = "b9ecd88a8c8378ca913a680cd98f0f13ac67383d35993f86c90a70e3f137816b"
 dependencies = [
  "gimli",
 ]
 
 [[package]]
 name = "adler"
-version = "0.2.3"
+version = "1.0.2"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "ee2a4ec343196209d6594e19543ae87a39f96d5534d7174822a3ad825dd6ed7e"
+checksum = "f26201604c87b1e01bd3d98f8d5d9a8fcbb815e8cedb41ffccbeb4bf593a35fe"
 
 [[package]]
 name = "aho-corasick"
@@ -26,18 +28,18 @@ dependencies = [
 
 [[package]]
 name = "ansi_term"
-version = "0.11.0"
+version = "0.12.1"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "ee49baf6cb617b853aa8d93bf420db2383fab46d314482ca2803b40d5fde979b"
+checksum = "d52a9bb7ec0cf484c551830a7ce27bd20d67eac647e1befb56b0be4ee39a55d2"
 dependencies = [
  "winapi",
 ]
 
 [[package]]
 name = "anyhow"
-version = "1.0.38"
+version = "1.0.57"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "afddf7f520a80dbf76e6f50a35bca42a2331ef227a28b3b6dc5c2e2338d114b1"
+checksum = "08f9b8508dccb7687a1d6c4ce66b2b0ecef467c94667de27d8d7fe1f8d2a9cdc"
 
 [[package]]
 name = "arc-swap"
@@ -59,9 +61,9 @@ checksum = "a4c527152e37cf757a3f78aae5a06fbeefdb07ccc535c980a3208ee3060dd544"
 
 [[package]]
 name = "arrayvec"
-version = "0.7.1"
+version = "0.7.2"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "be4dc07131ffa69b8072d35f5007352af944213cde02545e2103680baed38fcd"
+checksum = "8da52d66c7071e2e3fa2a1e5c6d088fec47b593032b254f5e980de8ea54454d6"
 
 [[package]]
 name = "assert_matches"
@@ -71,29 +73,30 @@ checksum = "9b34d609dfbaf33d6889b2b7106d3ca345eacad44200913df5ba02bfd31d2ba9"
 
 [[package]]
 name = "atty"
-version = "0.2.11"
+version = "0.2.14"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "9a7d5b8723950951411ee34d271d99dddcc2035a16ab25310ea2c8cfd4369652"
+checksum = "d9b39be18770d11421cdb1b9947a45dd3f37e93092cbf377614828a319d5fee8"
 dependencies = [
+ "hermit-abi",
  "libc",
- "termion",
  "winapi",
 ]
 
 [[package]]
 name = "autocfg"
-version = "1.0.0"
+version = "1.1.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "f8aac770f1885fd7e387acedd76065302551364496e46b3dd00860b2f8359b9d"
+checksum = "d468802bab17cbc0cc575e9b053f41e72aa36bfa6b7f55e3529ffa43161b97fa"
 
 [[package]]
 name = "backtrace"
-version = "0.3.55"
+version = "0.3.65"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "ef5140344c85b01f9bbb4d4b7288a8aa4b3287ccef913a14bcc78a1063623598"
+checksum = "11a17d453482a265fd5f8479f2a3f405566e6ca627837aaddb85af8b1ab8ef61"
 dependencies = [
  "addr2line",
- "cfg-if 1.0.0",
+ "cc",
+ "cfg-if",
  "libc",
  "miniz_oxide",
  "object",
@@ -108,20 +111,20 @@ checksum = "904dfeac50f3cdaba28fc6f57fdcddb75f49ed61346676a78c4ffe55877802fd"
 
 [[package]]
 name = "bitflags"
-version = "1.2.1"
+version = "1.3.2"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "cf1de2fe8c75bc145a2f577add951f8134889b4795d47466a54a5c846d691693"
+checksum = "bef38d45163c2f1dde094a7dfd33ccf595c92905c8f8f4fdc18d06fb1037718a"
 
 [[package]]
 name = "blake3"
-version = "1.0.0"
+version = "1.3.1"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "dcd555c66291d5f836dbb6883b48660ece810fe25a31f3bdfb911945dff2691f"
+checksum = "a08e53fc5a564bb15bfe6fae56bd71522205f1f91893f9c0116edad6496c183f"
 dependencies = [
  "arrayref",
  "arrayvec",
  "cc",
- "cfg-if 1.0.0",
+ "cfg-if",
  "constant_time_eq",
  "digest",
 ]
@@ -135,19 +138,19 @@ dependencies = [
  "log",
  "nydus-app",
  "nydus-error",
- "rafs",
+ "nydus-rafs",
+ "nydus-storage",
  "serde",
  "serde_json",
  "serde_with",
- "storage",
- "vm-memory",
+ "vm-memory 0.7.0",
 ]
 
 [[package]]
 name = "block-buffer"
-version = "0.9.0"
+version = "0.10.2"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "4152116fd6e9dadb291ae18fc1ec3575ed6d84c29642d97890f4b4a3417297e4"
+checksum = "0bf7fe51849ea569fd452f37822f606a5cabb684dc918707a0193fd4664ff324"
 dependencies = [
  "generic-array",
 ]
@@ -165,15 +168,9 @@ dependencies = [
 
 [[package]]
 name = "bumpalo"
-version = "3.4.0"
+version = "3.9.1"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "2e8c087f005730276d1096a652e92a8bacee2e2472bcc9715a74d2bec38b5820"
-
-[[package]]
-name = "bytes"
-version = "0.5.4"
-source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "130aac562c0dd69c56b3b1cc8ffd2e17be31d0b6c25b61c96b76231aa23e39e1"
+checksum = "a4a45a46ab1f2412e53d3a0ade76ffad2025804294569aae387231a0cd6e0899"
 
 [[package]]
 name = "bytes"
@@ -206,19 +203,13 @@ dependencies = [
 
 [[package]]
 name = "cc"
-version = "1.0.54"
+version = "1.0.73"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "7bbb73db36c1246e9034e307d0fba23f9a2e251faa47ade70c1bd252220c8311"
+checksum = "2fff2a6927b3bb87f9595d67196a70493f627687a71d87a0d692242c33f58c11"
 dependencies = [
  "jobserver",
 ]
 
-[[package]]
-name = "cfg-if"
-version = "0.1.10"
-source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "4785bdd1c96b2a846b2bd7cc02e86b6b3dbf14e7e53446c4f54c92a361040822"
-
 [[package]]
 name = "cfg-if"
 version = "1.0.0"
@@ -240,9 +231,9 @@ dependencies = [
 
 [[package]]
 name = "clap"
-version = "2.33.1"
+version = "2.34.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "bdfa80d47f954d53a35a64987ca1422f495b8d6483c0fe9f7117b36c2a792129"
+checksum = "a0610544180c38b88101fecf2dd634b174a62eef6946f84dfc6a7127512b381c"
 dependencies = [
  "ansi_term",
  "atty",
@@ -261,11 +252,11 @@ checksum = "245097e9a4535ee1e3e3931fcfcd55a796a44c643e8596ff6566d68f09b87bbc"
 
 [[package]]
 name = "core-foundation"
-version = "0.9.1"
+version = "0.9.3"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "0a89e2ae426ea83155dccf10c0fa6b1463ef6d5fcb44cee0b224a408fa640a62"
+checksum = "194a7a9e6de53fa55116934067c844d9d749312f75c6f6d0980e8c252f8c2146"
 dependencies = [
- "core-foundation-sys 0.8.2",
+ "core-foundation-sys 0.8.3",
  "libc",
 ]
 
@@ -280,23 +271,26 @@ dependencies = [
 
 [[package]]
 name = "core-foundation-sys"
-version = "0.8.2"
+version = "0.8.3"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "ea221b5284a47e40033bf9b66f35f984ec0ea2931eb03505246cd27a963f981b"
+checksum = "5827cebf4670468b8772dd191856768aedcb1b0278a04f989f7766351917b9dc"
 
 [[package]]
-name = "cpuid-bool"
-version = "0.1.0"
+name = "cpufeatures"
+version = "0.2.2"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "6d375c433320f6c5057ae04a04376eef4d04ce2801448cf8863a78da99107be4"
+checksum = "59a6001667ab124aebae2a495118e11d30984c3a653e99d86d58971708cf5e4b"
+dependencies = [
+ "libc",
+]
 
 [[package]]
 name = "crc32fast"
-version = "1.2.0"
+version = "1.3.2"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "ba125de2af0df55319f41944744ad91c71113bf74a4646efff39afe1f6842db1"
+checksum = "b540bd8bc810d3885c6ea91e2018302f68baba2129ab3e88f32389ee9370880d"
 dependencies = [
- "cfg-if 0.1.10",
+ "cfg-if",
 ]
 
 [[package]]
@@ -305,25 +299,25 @@ version = "0.8.8"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "0bf124c720b7686e3c2663cf54062ab0f68a88af2fb6a030e87e30bf721fcb38"
 dependencies = [
- "cfg-if 1.0.0",
+ "cfg-if",
  "lazy_static",
 ]
 
 [[package]]
-name = "crypto-mac"
-version = "0.8.0"
+name = "crypto-common"
+version = "0.1.3"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "b584a330336237c1eecd3e94266efb216c56ed91225d634cb2991c5f3fd1aeab"
+checksum = "57952ca27b5e3606ff4dd79b0020231aaf9d6aa76dc05fd30137538c50bd3ce8"
 dependencies = [
  "generic-array",
- "subtle",
+ "typenum",
 ]
 
 [[package]]
 name = "darling"
-version = "0.10.2"
+version = "0.13.4"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "0d706e75d87e35569db781a9b5e2416cff1236a47ed380831f959382ccd5f858"
+checksum = "a01d95850c592940db9b8194bc39f4bc0e89dee5c4265e4b1807c34a9aba453c"
 dependencies = [
  "darling_core",
  "darling_macro",
@@ -331,23 +325,23 @@ dependencies = [
 
 [[package]]
 name = "darling_core"
-version = "0.10.2"
+version = "0.13.4"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "f0c960ae2da4de88a91b2d920c2a7233b400bc33cb28453a2987822d8392519b"
+checksum = "859d65a907b6852c9361e3185c862aae7fafd2887876799fa55f5f99dc40d610"
 dependencies = [
  "fnv",
  "ident_case",
  "proc-macro2",
  "quote",
- "strsim 0.9.3",
+ "strsim 0.10.0",
  "syn",
 ]
 
 [[package]]
 name = "darling_macro"
-version = "0.10.2"
+version = "0.13.4"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "d9b5a2f4ac4969822c62224815d069952656cadc7084fdca9751e6d959189b72"
+checksum = "9c972679f83bdf9c42bd905396b6c3588a843a17f0f16dfcfa3e2c5d57441835"
 dependencies = [
  "darling_core",
  "quote",
@@ -360,7 +354,7 @@ version = "4.0.2"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "e77a43b28d0668df09411cb0bc9a8c2adc40f9a048afe863e05fd43251e8e39c"
 dependencies = [
- "cfg-if 1.0.0",
+ "cfg-if",
  "num_cpus",
 ]
 
@@ -371,16 +365,18 @@ source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "0b23c11eebec0e0814aa80b08fc43e2672d8e2c57bd006de66108ff1d2b4bfb6"
 dependencies = [
  "libc",
- "mio 0.8.2",
+ "mio",
 ]
 
 [[package]]
 name = "digest"
-version = "0.9.0"
+version = "0.10.3"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "d3dd60d1080a57a05ab032377049e0591415d2b31afd7028356dbf3cc6dcb066"
+checksum = "f2fb860ca6fafa5552fb6d0e816a69c8e49f0908bf524e30a90d97c85892d506"
 dependencies = [
- "generic-array",
+ "block-buffer",
+ "crypto-common",
+ "subtle",
 ]
 
 [[package]]
@@ -395,11 +391,11 @@ dependencies = [
 
 [[package]]
 name = "encoding_rs"
-version = "0.8.23"
+version = "0.8.31"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "e8ac63f94732332f44fe654443c46f6375d1939684c17b0afb6cb56b0456e171"
+checksum = "9852635589dc9f9ea1b6fe9f05b50ef208c85c834a562f0c6abb1c475736ec2b"
 dependencies = [
- "cfg-if 0.1.10",
+ "cfg-if",
 ]
 
 [[package]]
@@ -451,22 +447,19 @@ version = "0.2.16"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "c0408e2626025178a6a7f7ffc05a25bc47103229f19c113755de7bf63816290c"
 dependencies = [
- "cfg-if 1.0.0",
+ "cfg-if",
  "libc",
- "redox_syscall 0.2.10",
+ "redox_syscall",
  "winapi",
 ]
 
 [[package]]
 name = "flate2"
-version = "1.0.17"
+version = "1.0.24"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "766d0e77a2c1502169d4a93ff3b8c15a71fd946cd0126309752104e5f3c46d94"
+checksum = "f82b0f4c27ad9f8bfd1f3208d882da2b09c301bc1c828fd3a00d0216d2fbbff6"
 dependencies = [
- "cfg-if 0.1.10",
  "crc32fast",
- "libc",
- "miniz-sys",
  "miniz_oxide",
 ]
 
@@ -531,19 +524,19 @@ dependencies = [
  "lazy_static",
  "libc",
  "log",
- "mio 0.8.2",
+ "mio",
  "nix",
  "vhost",
  "virtio-queue",
- "vm-memory",
+ "vm-memory 0.7.0",
  "vmm-sys-util",
 ]
 
 [[package]]
 name = "futures"
-version = "0.3.12"
+version = "0.3.21"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "da9052a1a50244d8d5aa9bf55cbc2fb6f357c86cc52e46c62ed390a7180cf150"
+checksum = "f73fe65f54d1e12b726f517d3e2135ca3125a437b6d998caf1962961f7172d9e"
 dependencies = [
  "futures-channel",
  "futures-core",
@@ -556,9 +549,9 @@ dependencies = [
 
 [[package]]
 name = "futures-channel"
-version = "0.3.12"
+version = "0.3.21"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "f2d31b7ec7efab6eefc7c57233bb10b847986139d88cc2f5a02a1ae6871a1846"
+checksum = "c3083ce4b914124575708913bca19bfe887522d6e2e6d0952943f5eac4a74010"
 dependencies = [
  "futures-core",
  "futures-sink",
@@ -566,15 +559,15 @@ dependencies = [
 
 [[package]]
 name = "futures-core"
-version = "0.3.12"
+version = "0.3.21"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "79e5145dde8da7d1b3892dad07a9c98fc04bc39892b1ecc9692cf53e2b780a65"
+checksum = "0c09fd04b7e4073ac7156a9539b57a484a8ea920f79c7c675d05d289ab6110d3"
 
 [[package]]
 name = "futures-executor"
-version = "0.3.12"
+version = "0.3.21"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "e9e59fdc009a4b3096bf94f740a0f2424c082521f20a9b08c5c07c48d90fd9b9"
+checksum = "9420b90cfa29e327d0429f19be13e7ddb68fa1cccb09d65e5706b8c7a749b8a6"
 dependencies = [
  "futures-core",
  "futures-task",
@@ -583,17 +576,16 @@ dependencies = [
 
 [[package]]
 name = "futures-io"
-version = "0.3.12"
+version = "0.3.21"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "28be053525281ad8259d47e4de5de657b25e7bac113458555bb4b70bc6870500"
+checksum = "fc4045962a5a5e935ee2fdedaa4e08284547402885ab326734432bed5d12966b"
 
 [[package]]
 name = "futures-macro"
-version = "0.3.12"
+version = "0.3.21"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "c287d25add322d9f9abdcdc5927ca398917996600182178774032e9f8258fedd"
+checksum = "33c1e13800337f4d4d7a316bf45a567dbcb6ffe087f16424852d97e97a91f512"
 dependencies = [
- "proc-macro-hack",
  "proc-macro2",
  "quote",
  "syn",
@@ -601,18 +593,15 @@ dependencies = [
 
 [[package]]
 name = "futures-sink"
-version = "0.3.12"
+version = "0.3.21"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "caf5c69029bda2e743fddd0582d1083951d65cc9539aebf8812f36c3491342d6"
+checksum = "21163e139fa306126e6eedaf49ecdb4588f939600f0b1e770f4205ee4b7fa868"
 
 [[package]]
 name = "futures-task"
-version = "0.3.12"
+version = "0.3.21"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "13de07eb8ea81ae445aca7b69f5f7bf15d7bf4912d8ca37d6645c77ae8a58d86"
-dependencies = [
- "once_cell",
-]
+checksum = "57c66a976bf5909d801bbef33416c41372779507e7a6b3a5e25e4749c58f776a"
 
 [[package]]
 name = "futures-timer"
@@ -622,9 +611,9 @@ checksum = "e64b03909df88034c26dc1547e8970b91f98bdb65165d6a4e9110d94263dbb2c"
 
 [[package]]
 name = "futures-util"
-version = "0.3.12"
+version = "0.3.21"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "632a8cd0f2a4b3fdea1657f08bde063848c3bd00f9bbf6e256b8be78802e624b"
+checksum = "d8b7abd5d659d9b90c8cba917f6ec750a74e2dc23902ef9cd4cc8c8b22e6036a"
 dependencies = [
  "futures-channel",
  "futures-core",
@@ -635,16 +624,14 @@ dependencies = [
  "memchr",
  "pin-project-lite",
  "pin-utils",
- "proc-macro-hack",
- "proc-macro-nested",
  "slab",
 ]
 
 [[package]]
 name = "generic-array"
-version = "0.14.2"
+version = "0.14.5"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "ac746a5f3bbfdadd6106868134545e684693d54d9d44f6e9588a7d54af0bf980"
+checksum = "fd48d33ec7f05fbfa152300fdad764757cbded343c1aa1cff2fbaf4134851803"
 dependencies = [
  "typenum",
  "version_check",
@@ -652,26 +639,26 @@ dependencies = [
 
 [[package]]
 name = "getrandom"
-version = "0.2.2"
+version = "0.2.6"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "c9495705279e7140bf035dde1f6e750c162df8b625267cd52cc44e0b156732c8"
+checksum = "9be70c98951c83b8d2f8f60d7065fa6d5146873094452a1008da8c2f1e4205ad"
 dependencies = [
- "cfg-if 1.0.0",
+ "cfg-if",
  "libc",
- "wasi 0.10.2+wasi-snapshot-preview1",
+ "wasi 0.10.0+wasi-snapshot-preview1",
 ]
 
 [[package]]
 name = "gimli"
-version = "0.23.0"
+version = "0.26.1"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "f6503fe142514ca4799d4c26297c4248239fe8838d827db6bd6065c6ed29a6ce"
+checksum = "78cc372d058dcf6d5ecd98510e7fbc9e5aec4d21de70f65fea8fecebcd881bd4"
 
 [[package]]
 name = "git2"
-version = "0.13.17"
+version = "0.13.25"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "1d250f5f82326884bd39c2853577e70a121775db76818ffa452ed1e80de12986"
+checksum = "f29229cc1b24c0e6062f6e742aa3e256492a5323365e5ed3413599f8a5eff7d6"
 dependencies = [
  "bitflags",
  "libc",
@@ -705,11 +692,11 @@ dependencies = [
 
 [[package]]
 name = "h2"
-version = "0.3.11"
+version = "0.3.13"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "d9f1f717ddc7b2ba36df7e871fd88db79326551d3d6f1fc406fbfd28b582ff8e"
+checksum = "37a82c6d637fc9515a4694bbf1cb2457b79d81ce52b3108bdeea58b07dd34a57"
 dependencies = [
- "bytes 1.1.0",
+ "bytes",
  "fnv",
  "futures-core",
  "futures-sink",
@@ -730,9 +717,9 @@ checksum = "ab5ef0d4909ef3724cc8cce6ccc8572c5c817592e9285f5464f8e86f8bd3726e"
 
 [[package]]
 name = "hermit-abi"
-version = "0.1.14"
+version = "0.1.19"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "b9586eedd4ce6b3c498bc3b4dd92fc9f11166aa908a914071953768066c67909"
+checksum = "62b467343b94ba476dcb2500d242dadbb39557df889310ac77c5d99100aaac33"
 dependencies = [
  "libc",
 ]
@@ -745,47 +732,46 @@ checksum = "7f24254aa9a54b5c858eaee2f5bccdb46aaf0e486a595ed5fd8f86ba55232a70"
 
 [[package]]
 name = "hmac"
-version = "0.8.1"
+version = "0.12.1"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "126888268dcc288495a26bf004b38c5fdbb31682f992c84ceb046a1f0fe38840"
+checksum = "6c49c37c09c17a53d937dfbb742eb3a961d65a994e6bcdcf37e7399d0cc8ab5e"
 dependencies = [
- "crypto-mac",
  "digest",
 ]
 
 [[package]]
 name = "http"
-version = "0.2.1"
+version = "0.2.7"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "28d569972648b2c512421b5f2a405ad6ac9666547189d0c5477a3f200f3e02f9"
+checksum = "ff8670570af52249509a86f5e3e18a08c60b177071826898fde8997cf5f6bfbb"
 dependencies = [
- "bytes 0.5.4",
+ "bytes",
  "fnv",
  "itoa",
 ]
 
 [[package]]
 name = "http-body"
-version = "0.4.3"
+version = "0.4.5"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "399c583b2979440c60be0821a6199eca73bc3c8dcd9d070d75ac726e2c6186e5"
+checksum = "d5f38f16d184e36f2408a55281cd658ecbd3ca05cce6d6510a176eca393e26d1"
 dependencies = [
- "bytes 1.1.0",
+ "bytes",
  "http",
  "pin-project-lite",
 ]
 
 [[package]]
 name = "httparse"
-version = "1.5.1"
+version = "1.7.1"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "acd94fdbe1d4ff688b67b04eee2e17bd50995534a61539e45adfefb45e5e5503"
+checksum = "496ce29bb5a52785b44e0f7ca2847ae0bb839c9bd28f69acac9b99d461c0c04c"
 
 [[package]]
 name = "httpdate"
-version = "1.0.1"
+version = "1.0.2"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "6456b8a6c8f33fee7d958fcd1b60d55b11940a79e63ae87013e6d22e26034440"
+checksum = "c4a1e36c821dbe04574f602848a19f742f4fb3c98d40449f11bcad18d6b17421"
 
 [[package]]
 name = "humantime"
@@ -795,11 +781,11 @@ checksum = "9a3a5bfb195931eeb336b2a7b4d761daec841b97f947d34394601737a7bba5e4"
 
 [[package]]
 name = "hyper"
-version = "0.14.13"
+version = "0.14.19"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "15d1cfb9e4f68655fa04c01f59edb405b6074a0f7118ea881e5026e4a1cd8593"
+checksum = "42dc3c131584288d375f2d07f822b0cb012d8c6fb899a5b9fdb3cb7eb9b6004f"
 dependencies = [
- "bytes 1.1.0",
+ "bytes",
  "futures-channel",
  "futures-core",
  "futures-util",
@@ -823,7 +809,7 @@ version = "0.5.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "d6183ddfa99b85da61a140bea0efc93fdf56ceaa041b37d553518030827f9905"
 dependencies = [
- "bytes 1.1.0",
+ "bytes",
  "hyper",
  "native-tls",
  "tokio",
@@ -851,9 +837,9 @@ checksum = "b9e0384b61958566e926dc50660321d12159025e767c18e043daf26b70104c39"
 
 [[package]]
 name = "idna"
-version = "0.2.0"
+version = "0.2.3"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "02e2673c30ee86b5b96a9cb52ad15718aa1f966f5ab9ad54a8b95d5ca33120a9"
+checksum = "418a0a6fab821475f634efe3ccc45c013f742efe03d853e8d3355d5cb850ecf8"
 dependencies = [
  "matches",
  "unicode-bidi",
@@ -862,9 +848,9 @@ dependencies = [
 
 [[package]]
 name = "indexmap"
-version = "1.7.0"
+version = "1.8.2"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "bc633605454125dec4b66843673f01c7df2b89479b32e0ed634e43a91cff62a5"
+checksum = "e6012d540c5baa3589337a98ce73408de9b5a25ec9fc2c6fd6be8f0d39e0ca5a"
 dependencies = [
  "autocfg",
  "hashbrown",
@@ -872,39 +858,39 @@ dependencies = [
 
 [[package]]
 name = "instant"
-version = "0.1.9"
+version = "0.1.12"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "61124eeebbd69b8190558df225adf7e4caafce0d743919e5d6b19652314ec5ec"
+checksum = "7a5bbe824c507c5da5956355e86a746d82e0e1464f65d862cc5e71da70e94b2c"
 dependencies = [
- "cfg-if 1.0.0",
+ "cfg-if",
 ]
 
 [[package]]
 name = "ipnet"
-version = "2.3.1"
+version = "2.5.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "68f2d64f2edebec4ce84ad108148e67e1064789bee435edc5b60ad398714a3a9"
+checksum = "879d54834c8c76457ef4293a689b2a8c59b076067ad77b15efafbb05f92a592b"
 
 [[package]]
 name = "itoa"
-version = "0.4.5"
+version = "1.0.2"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "b8b7a7c0c47db5545ed3fef7468ee7bb5b74691498139e4b3f6a20685dc6dd8e"
+checksum = "112c678d4050afce233f4f2852bb2eb519230b3cf12f33585275537d7e41578d"
 
 [[package]]
 name = "jobserver"
-version = "0.1.21"
+version = "0.1.24"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "5c71313ebb9439f74b00d9d2dcec36440beaf57a6aa0623068441dd7cd81a7f2"
+checksum = "af25a77299a7f711a01975c35a6a424eb6862092cc2d6c72c4ed6cbc56dfc1fa"
 dependencies = [
  "libc",
 ]
 
 [[package]]
 name = "js-sys"
-version = "0.3.55"
+version = "0.3.57"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "7cc9ffccd38c451a86bf13657df244e9c3f37493cce8e5e21e940963777acc84"
+checksum = "671a26f820db17c2a2750743f1dd03bafd15b98c9f30c7c2628c024c05d73397"
 dependencies = [
  "wasm-bindgen",
 ]
@@ -917,15 +903,15 @@ checksum = "e2abad23fbc42b3700f2f279844dc832adb2b2eb069b2df918f455c4e18cc646"
 
 [[package]]
 name = "libc"
-version = "0.2.119"
+version = "0.2.126"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "1bf2e165bb3457c8e098ea76f3e3bc9db55f87aa90d52d0e6be741470916aaa4"
+checksum = "349d5a591cd28b49e1d1037471617a32ddcda5731b99419008085f72d5a53836"
 
 [[package]]
 name = "libgit2-sys"
-version = "0.12.18+1.1.0"
+version = "0.12.26+1.3.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "3da6a42da88fc37ee1ecda212ffa254c25713532980005d5f7c0b0fbe7e6e885"
+checksum = "19e1c899248e606fbfe68dcb31d8b0176ebab833b103824af31bddf4b7457494"
 dependencies = [
  "cc",
  "libc",
@@ -935,9 +921,9 @@ dependencies = [
 
 [[package]]
 name = "libz-sys"
-version = "1.1.2"
+version = "1.1.8"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "602113192b08db8f38796c4e85c39e960c145965140e918018bcde1952429655"
+checksum = "9702761c3935f8cc2f101793272e202c72b99da8f4224a19ddcf1279a6450bbf"
 dependencies = [
  "cc",
  "libc",
@@ -947,27 +933,28 @@ dependencies = [
 
 [[package]]
 name = "lock_api"
-version = "0.4.2"
+version = "0.4.7"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "dd96ffd135b2fd7b973ac026d28085defbe8983df057ced3eb4f2130b0831312"
+checksum = "327fa5b6a6940e4699ec49a9beae1ea4845c6bab9314e4f84ac68742139d8c53"
 dependencies = [
+ "autocfg",
  "scopeguard",
 ]
 
 [[package]]
 name = "log"
-version = "0.4.14"
+version = "0.4.17"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "51b9bbe6c47d51fc3e1a9b945965946b4c44142ab8792c50835a980d362c2710"
+checksum = "abb12e687cfb44aa40f41fc3978ef76448f9b6038cad6aef4259d3c095a2382e"
 dependencies = [
- "cfg-if 1.0.0",
+ "cfg-if",
 ]
 
 [[package]]
 name = "lz4-sys"
-version = "1.9.2"
+version = "1.9.3"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "dca79aa95d8b3226213ad454d328369853be3a1382d89532a854f4d69640acae"
+checksum = "d7be8908e2ed6f31c02db8a9fa962f03e36c53fbfde437363eae3306b85d7e17"
 dependencies = [
  "cc",
  "libc",
@@ -984,21 +971,21 @@ dependencies = [
 
 [[package]]
 name = "matches"
-version = "0.1.8"
+version = "0.1.9"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "7ffc5c5338469d4d3ea17d269fa8ea3512ad247247c30bd2df69e68309ed0a08"
+checksum = "a3e378b66a060d48947b590737b30a1be76706c8dd7b8ba0f2fe3989c68a853f"
 
 [[package]]
 name = "memchr"
-version = "2.4.1"
+version = "2.5.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "308cc39be01b73d0d18f82a0e7b2a3df85245f84af96fdddc5d202d27e47b86a"
+checksum = "2dffe52ecf27772e601905b7522cb4ef790d2cc203488bbd0e2fe85fcb74566d"
 
 [[package]]
 name = "memoffset"
-version = "0.6.4"
+version = "0.6.5"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "59accc507f1338036a0477ef61afdae33cde60840f4dfe481319ce3ad116ddf9"
+checksum = "5aa361d4faea93603064a027415f07bd8e1d5c88c9fbf68bf56a285428fd79ce"
 dependencies = [
  "autocfg",
 ]
@@ -1009,66 +996,32 @@ version = "0.3.16"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "2a60c7ce501c71e03a9c9c0d35b861413ae925bd979cc7a4e30d060069aaac8d"
 
-[[package]]
-name = "miniz-sys"
-version = "0.1.12"
-source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "1e9e3ae51cea1576ceba0dde3d484d30e6e5b86dee0b2d412fe3a16a15c98202"
-dependencies = [
- "cc",
- "libc",
-]
-
 [[package]]
 name = "miniz_oxide"
-version = "0.4.1"
+version = "0.5.1"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "4d7559a8a40d0f97e1edea3220f698f78b1c5ab67532e49f68fde3910323b722"
+checksum = "d2b29bd4bc3f33391105ebee3589c19197c4271e3e5a9ec9bfe8127eeff8f082"
 dependencies = [
  "adler",
 ]
 
 [[package]]
 name = "mio"
-version = "0.7.13"
+version = "0.8.3"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "8c2bdb6314ec10835cd3293dd268473a835c02b7b352e788be788b3c6ca6bb16"
+checksum = "713d550d9b44d89174e066b7a6217ae06234c10cb47819a88290d2b353c31799"
 dependencies = [
  "libc",
  "log",
- "miow",
- "ntapi",
- "winapi",
-]
-
-[[package]]
-name = "mio"
-version = "0.8.2"
-source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "52da4364ffb0e4fe33a9841a98a3f3014fb964045ce4f7a45a398243c8d6b0c9"
-dependencies = [
- "libc",
- "log",
- "miow",
- "ntapi",
  "wasi 0.11.0+wasi-snapshot-preview1",
- "winapi",
-]
-
-[[package]]
-name = "miow"
-version = "0.3.7"
-source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "b9f1c5b025cda876f66ef43a113f91ebc9f4ccef34843000e0adf6ebbab84e21"
-dependencies = [
- "winapi",
+ "windows-sys",
 ]
 
 [[package]]
 name = "native-tls"
-version = "0.2.8"
+version = "0.2.10"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "48ba9f7719b5a0f42f338907614285fb5fd70e53858141f69898a1fb7203b24d"
+checksum = "fd7e2f3618557f980e0b17e8856252eee3c97fa12c54dff0ca290fb6266ca4a9"
 dependencies = [
  "lazy_static",
  "libc",
@@ -1090,7 +1043,7 @@ checksum = "9f866317acbd3a240710c63f065ffb1e4fd466259045ccb504130b7f668f35c6"
 dependencies = [
  "bitflags",
  "cc",
- "cfg-if 1.0.0",
+ "cfg-if",
  "libc",
  "memoffset",
 ]
@@ -1107,20 +1060,11 @@ version = "0.3.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "38bf9645c8b145698bb0b18a4637dcacbc421ea49bef2317e4fd8065a387cf21"
 
-[[package]]
-name = "ntapi"
-version = "0.3.4"
-source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "7a31937dea023539c72ddae0e3571deadc1414b300483fa7aaec176168cfa9d2"
-dependencies = [
- "winapi",
-]
-
 [[package]]
 name = "num-integer"
-version = "0.1.42"
+version = "0.1.45"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "3f6ea62e9d81a77cd3ee9a2a5b9b609447857f3d358704331e4ef39eb247fcba"
+checksum = "225d3389fb3509a24c93f5c29eb6bde2586b98d9f016636dff58d7c6f7569cd9"
 dependencies = [
  "autocfg",
  "num-traits",
@@ -1128,29 +1072,23 @@ dependencies = [
 
 [[package]]
 name = "num-traits"
-version = "0.2.14"
+version = "0.2.15"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "9a64b1ec5cda2586e284722486d802acf1f7dbdc623e2bfc57e65ca1cd099290"
+checksum = "578ede34cf02f8924ab9447f50c28075b4d3e5b269972345e7e0372b38c6cdcd"
 dependencies = [
  "autocfg",
 ]
 
 [[package]]
 name = "num_cpus"
-version = "1.13.0"
+version = "1.13.1"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "05499f3756671c15885fee9034446956fff3f243d6077b91e5767df161f766b3"
+checksum = "19e64526ebdee182341572e50e9ad03965aa510cd94427a4549448f285e957a1"
 dependencies = [
  "hermit-abi",
  "libc",
 ]
 
-[[package]]
-name = "numtoa"
-version = "0.1.0"
-source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "b8f8bdf33df195859076e54ab11ee78a1b208382d3a26ec40d142ffc1ecc49ef"
-
 [[package]]
 name = "nydus-api"
 version = "0.1.0"
@@ -1159,7 +1097,7 @@ dependencies = [
  "http",
  "lazy_static",
  "log",
- "mio 0.8.2",
+ "mio",
  "nydus-utils",
  "serde",
  "serde_derive",
@@ -1184,7 +1122,7 @@ dependencies = [
 
 [[package]]
 name = "nydus-error"
-version = "0.2.0"
+version = "0.2.1"
 dependencies = [
  "backtrace",
  "httpdate",
@@ -1194,6 +1132,39 @@ dependencies = [
  "serde_json",
 ]
 
+[[package]]
+name = "nydus-rafs"
+version = "0.1.0"
+dependencies = [
+ "anyhow",
+ "arc-swap 0.4.8",
+ "assert_matches",
+ "base64",
+ "bitflags",
+ "blake3",
+ "flate2",
+ "fuse-backend-rs",
+ "futures",
+ "hmac",
+ "lazy_static",
+ "libc",
+ "log",
+ "lz4-sys",
+ "nix",
+ "nydus-error",
+ "nydus-storage",
+ "nydus-utils",
+ "serde",
+ "serde_json",
+ "serde_with",
+ "sha-1",
+ "sha2",
+ "spmc",
+ "url",
+ "vm-memory 0.7.0",
+ "vmm-sys-util",
+]
+
 [[package]]
 name = "nydus-rs"
 version = "2.0.0"
@@ -1211,14 +1182,15 @@ dependencies = [
  "lazy_static",
  "libc",
  "log",
- "mio 0.8.2",
+ "mio",
  "nix",
  "nydus-api",
  "nydus-app",
  "nydus-error",
+ "nydus-rafs",
+ "nydus-storage",
  "nydus-utils",
  "openssl",
- "rafs",
  "rand",
  "rand_core",
  "regex",
@@ -1229,21 +1201,53 @@ dependencies = [
  "serde_json",
  "serde_with",
  "sha2",
- "storage",
  "tar",
  "tokio",
  "vhost",
  "vhost-user-backend",
  "virtio-bindings",
  "virtio-queue",
- "vm-memory",
+ "vm-memory 0.7.0",
  "vmm-sys-util",
  "xattr",
 ]
 
+[[package]]
+name = "nydus-storage"
+version = "0.5.0"
+dependencies = [
+ "anyhow",
+ "arc-swap 0.4.8",
+ "base64",
+ "bitflags",
+ "dbs-uhttp",
+ "fuse-backend-rs",
+ "futures",
+ "governor",
+ "hmac",
+ "httpdate",
+ "lazy_static",
+ "libc",
+ "log",
+ "nix",
+ "nydus-error",
+ "nydus-utils",
+ "reqwest",
+ "serde",
+ "serde_json",
+ "serde_with",
+ "sha-1",
+ "sha2",
+ "spmc",
+ "tokio",
+ "url",
+ "vm-memory 0.7.0",
+ "vmm-sys-util",
+]
+
 [[package]]
 name = "nydus-utils"
-version = "0.1.0"
+version = "0.2.1"
 dependencies = [
  "blake3",
  "flate2",
@@ -1262,56 +1266,65 @@ dependencies = [
 
 [[package]]
 name = "object"
-version = "0.22.0"
+version = "0.28.4"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "8d3b63360ec3cb337817c2dbd47ab4a0f170d285d8e5a2064600f3def1402397"
+checksum = "e42c982f2d955fac81dd7e1d0e1426a7d702acd9c98d19ab01083a6a0328c424"
+dependencies = [
+ "memchr",
+]
 
 [[package]]
 name = "once_cell"
-version = "1.8.0"
-source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "692fcb63b64b1758029e0a96ee63e049ce8c5948587f2f7208df04625e5f6b56"
-
-[[package]]
-name = "opaque-debug"
-version = "0.3.0"
+version = "1.12.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "624a8340c38c1b80fd549087862da4ba43e08858af025b236e509b6649fc13d5"
+checksum = "7709cef83f0c1f58f666e746a08b21e0085f7440fa6a29cc194d68aac97a4225"
 
 [[package]]
 name = "openssl"
-version = "0.10.38"
+version = "0.10.40"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "0c7ae222234c30df141154f159066c5093ff73b63204dcda7121eb082fc56a95"
+checksum = "fb81a6430ac911acb25fe5ac8f1d2af1b4ea8a4fdfda0f1ee4292af2e2d8eb0e"
 dependencies = [
  "bitflags",
- "cfg-if 1.0.0",
+ "cfg-if",
  "foreign-types",
  "libc",
  "once_cell",
+ "openssl-macros",
  "openssl-sys",
 ]
 
+[[package]]
+name = "openssl-macros"
+version = "0.1.0"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "b501e44f11665960c7e7fcf062c7d96a14ade4aa98116c004b2e37b5be7d736c"
+dependencies = [
+ "proc-macro2",
+ "quote",
+ "syn",
+]
+
 [[package]]
 name = "openssl-probe"
-version = "0.1.2"
+version = "0.1.5"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "77af24da69f9d9341038eba93a073b1fdaaa1b788221b00a69bce9e762cb32de"
+checksum = "ff011a302c396a5197692431fc1948019154afc178baf7d8e37367442a4601cf"
 
 [[package]]
 name = "openssl-src"
-version = "111.18.0+1.1.1n"
+version = "111.20.0+1.1.1o"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "7897a926e1e8d00219127dc020130eca4292e5ca666dd592480d72c3eca2ff6c"
+checksum = "92892c4f87d56e376e469ace79f1128fdaded07646ddf73aa0be4706ff712dec"
 dependencies = [
  "cc",
 ]
 
 [[package]]
 name = "openssl-sys"
-version = "0.9.72"
+version = "0.9.73"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "7e46109c383602735fa0a2e48dd2b7c892b048e1bf69e5c3b1d804b7d9c203cb"
+checksum = "9d5fd19fb3e0a8191c1e34935718976a3e70c112ab9a24af6d7cadccd9d90bc0"
 dependencies = [
  "autocfg",
  "cc",
@@ -1323,9 +1336,9 @@ dependencies = [
 
 [[package]]
 name = "parking_lot"
-version = "0.11.1"
+version = "0.11.2"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "6d7744ac029df22dca6284efe4e898991d28e3085c706c972bcd7da4a27a15eb"
+checksum = "7d17b78036a60663b797adeaee46f5c9dfebb86948d1255007a1d6be0271ff99"
 dependencies = [
  "instant",
  "lock_api",
@@ -1334,14 +1347,14 @@ dependencies = [
 
 [[package]]
 name = "parking_lot_core"
-version = "0.8.2"
+version = "0.8.5"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "9ccb628cad4f84851442432c60ad8e1f607e29752d0bf072cbd0baf28aa34272"
+checksum = "d76e8e1493bcac0d2766c42737f34458f1c8c50c0d23bcb24ea953affb273216"
 dependencies = [
- "cfg-if 1.0.0",
+ "cfg-if",
  "instant",
  "libc",
- "redox_syscall 0.1.56",
+ "redox_syscall",
  "smallvec",
  "winapi",
 ]
@@ -1354,18 +1367,18 @@ checksum = "d4fd5641d01c8f18a23da7b6fe29298ff4b55afcccdf78973b24cf3175fee32e"
 
 [[package]]
 name = "pin-project"
-version = "1.0.8"
+version = "1.0.10"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "576bc800220cc65dac09e99e97b08b358cfab6e17078de8dc5fee223bd2d0c08"
+checksum = "58ad3879ad3baf4e44784bc6a718a8698867bb991f8ce24d1bcbe2cfb4c3a75e"
 dependencies = [
  "pin-project-internal",
 ]
 
 [[package]]
 name = "pin-project-internal"
-version = "1.0.8"
+version = "1.0.10"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "6e8fe8163d14ce7f0cdac2e040116f22eac817edabff0be91e8aff7e9accf389"
+checksum = "744b6f092ba29c3650faf274db506afd39944f48420f6c86b17cfe0ee1cb36bb"
 dependencies = [
  "proc-macro2",
  "quote",
@@ -1374,9 +1387,9 @@ dependencies = [
 
 [[package]]
 name = "pin-project-lite"
-version = "0.2.4"
+version = "0.2.9"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "439697af366c49a6d0a010c56a0d97685bc140ce0d377b13a2ea2aa42d64a827"
+checksum = "e0a7ae3ac2f1173085d398531c705756c94a4c56843785df85a60c1a0afac116"
 
 [[package]]
 name = "pin-utils"
@@ -1386,35 +1399,23 @@ checksum = "8b870d8c151b6f2fb93e84a13146138f05d02ed11c7e7c54f8826aaaf7c9f184"
 
 [[package]]
 name = "pkg-config"
-version = "0.3.17"
+version = "0.3.25"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "05da548ad6865900e60eaba7f589cc0783590a92e940c26953ff81ddbab2d677"
+checksum = "1df8c4ec4b0627e53bdf214615ad287367e482558cf84b109250b37464dc03ae"
 
 [[package]]
 name = "ppv-lite86"
-version = "0.2.8"
-source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "237a5ed80e274dbc66f86bd59c1e25edc039660be53194b5fe0a482e0f2612ea"
-
-[[package]]
-name = "proc-macro-hack"
-version = "0.5.19"
-source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "dbf0c48bc1d91375ae5c3cd81e3722dff1abcf81a30960240640d223f59fe0e5"
-
-[[package]]
-name = "proc-macro-nested"
-version = "0.1.7"
+version = "0.2.16"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "bc881b2c22681370c6a780e47af9840ef841837bc98118431d4e1868bd0c1086"
+checksum = "eb9f9e6e233e5c4a35559a617bf40a4ec447db2e84c20b55a6f83167b7e57872"
 
 [[package]]
 name = "proc-macro2"
-version = "1.0.29"
+version = "1.0.39"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "b9f5105d4fdaab20335ca9565e106a5d9b82b6219b5ba735731124ac6711d23d"
+checksum = "c54b25569025b7fc9651de43004ae593a75ad88543b17178aa5e1b9c4f15f56f"
 dependencies = [
- "unicode-xid",
+ "unicode-ident",
 ]
 
 [[package]]
@@ -1428,53 +1429,20 @@ dependencies = [
  "mach",
  "once_cell",
  "raw-cpuid",
- "wasi 0.10.2+wasi-snapshot-preview1",
+ "wasi 0.10.0+wasi-snapshot-preview1",
  "web-sys",
  "winapi",
 ]
 
 [[package]]
 name = "quote"
-version = "1.0.6"
+version = "1.0.18"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "54a21852a652ad6f610c9510194f398ff6f8692e334fd1145fed931f7fbe44ea"
+checksum = "a1feb54ed693b93a84e14094943b84b7c4eae204c512b7ccb95ab0c66d278ad1"
 dependencies = [
  "proc-macro2",
 ]
 
-[[package]]
-name = "rafs"
-version = "0.1.0"
-dependencies = [
- "anyhow",
- "arc-swap 0.4.8",
- "assert_matches",
- "base64",
- "bitflags",
- "blake3",
- "flate2",
- "fuse-backend-rs",
- "futures",
- "hmac",
- "lazy_static",
- "libc",
- "log",
- "lz4-sys",
- "nix",
- "nydus-error",
- "nydus-utils",
- "serde",
- "serde_json",
- "serde_with",
- "sha-1",
- "sha2",
- "spmc",
- "storage",
- "url",
- "vm-memory",
- "vmm-sys-util",
-]
-
 [[package]]
 name = "rand"
 version = "0.8.5"
@@ -1488,9 +1456,9 @@ dependencies = [
 
 [[package]]
 name = "rand_chacha"
-version = "0.3.0"
+version = "0.3.1"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "e12735cf05c9e10bf21534da50a147b924d555dc7a547c42e6bb2d5b6017ae0d"
+checksum = "e6c10a63a0fa32252be49d21e7709d4d4baf8d231c2dbce1eaa8141b9b127d88"
 dependencies = [
  "ppv-lite86",
  "rand_core",
@@ -1498,51 +1466,36 @@ dependencies = [
 
 [[package]]
 name = "rand_core"
-version = "0.6.2"
+version = "0.6.3"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "34cf66eb183df1c5876e2dcf6b13d57340741e8dc255b48e40a26de954d06ae7"
+checksum = "d34f1408f55294453790c48b2f1ebbb1c5b4b7563eb1f418bcfcfdbb06ebb4e7"
 dependencies = [
  "getrandom",
 ]
 
 [[package]]
 name = "raw-cpuid"
-version = "10.2.0"
+version = "10.3.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "929f54e29691d4e6a9cc558479de70db7aa3d98cd6fe7ab86d7507aa2886b9d2"
+checksum = "738bc47119e3eeccc7e94c4a506901aea5e7b4944ecd0829cbebf4af04ceda12"
 dependencies = [
  "bitflags",
 ]
 
 [[package]]
 name = "redox_syscall"
-version = "0.1.56"
-source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "2439c63f3f6139d1b57529d16bc3b8bb855230c8efcc5d3a896c8bea7c3b1e84"
-
-[[package]]
-name = "redox_syscall"
-version = "0.2.10"
+version = "0.2.13"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "8383f39639269cde97d255a32bdb68c047337295414940c68bdd30c2e13203ff"
+checksum = "62f25bc4c7e55e0b0b7a1d43fb893f4fa1361d0abe38b9ce4f323c2adfe6ef42"
 dependencies = [
  "bitflags",
 ]
 
-[[package]]
-name = "redox_termios"
-version = "0.1.1"
-source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "7e891cfe48e9100a70a3b6eb652fef28920c117d366339687bd5576160db0f76"
-dependencies = [
- "redox_syscall 0.1.56",
-]
-
 [[package]]
 name = "regex"
-version = "1.5.5"
+version = "1.5.6"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "1a11647b6b25ff05a515cb92c365cec08801e83423a235b51e231e1808747286"
+checksum = "d83f127d94bdbcda4c8cc2e50f6f84f4b611f69c902699ca385a39c3a75f9ff1"
 dependencies = [
  "aho-corasick",
  "memchr",
@@ -1551,9 +1504,9 @@ dependencies = [
 
 [[package]]
 name = "regex-syntax"
-version = "0.6.25"
+version = "0.6.26"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "f497285884f3fcff424ffc933e56d7cbca511def0c9831a7f9b5f6153e3cc89b"
+checksum = "49b3de9ec5dc0a3417da371aab17d729997c15010e7fd24ff707773a33bddb64"
 
 [[package]]
 name = "remove_dir_all"
@@ -1566,12 +1519,12 @@ dependencies = [
 
 [[package]]
 name = "reqwest"
-version = "0.11.9"
+version = "0.11.10"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "87f242f1488a539a79bac6dbe7c8609ae43b7914b7736210f239a37cccb32525"
+checksum = "46a1f7aa4f35e5e8b4160449f51afc758f0ce6454315a9fa7d0d113e958c41eb"
 dependencies = [
  "base64",
- "bytes 1.1.0",
+ "bytes",
  "encoding_rs",
  "futures-core",
  "futures-util",
@@ -1602,11 +1555,10 @@ dependencies = [
 
 [[package]]
 name = "rlimit"
-version = "0.3.0"
+version = "0.8.3"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "e6d26e65e82a1e2628c5f209ec12f4508fa50e644bd2f264138e60129d61eae8"
+checksum = "f7278a1ec8bfd4a4e07515c589f5ff7b309a373f987393aef44813d9dcf87aa3"
 dependencies = [
- "cfg-if 0.1.10",
  "libc",
 ]
 
@@ -1631,24 +1583,24 @@ dependencies = [
 
 [[package]]
 name = "rustc-demangle"
-version = "0.1.16"
+version = "0.1.21"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "4c691c0e608126e00913e33f0ccf3727d5fc84573623b8d65b2df340b5201783"
+checksum = "7ef03e0a2b150c7a90d01faf6254c9c48a41e95fb2a8c2ac1c6f0d2b9aefc342"
 
 [[package]]
 name = "ryu"
-version = "1.0.4"
+version = "1.0.10"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "ed3d612bc64430efeb3f7ee6ef26d590dce0c43249217bddc62112540c7941e1"
+checksum = "f3f6f92acf49d1b98f7a81226834412ada05458b7364277387724a237f062695"
 
 [[package]]
 name = "schannel"
-version = "0.1.19"
+version = "0.1.20"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "8f05ba609c234e60bee0d547fe94a4c7e9da733d1c962cf6e59efa4cd9c8bc75"
+checksum = "88d6731146462ea25d9244b2ed5fd1d716d25c52e4d54aa4fb0f3c4e9854dbe2"
 dependencies = [
  "lazy_static",
- "winapi",
+ "windows-sys",
 ]
 
 [[package]]
@@ -1659,24 +1611,24 @@ checksum = "d29ab0c6d3fc0ee92fe66e2d99f700eab17a8d57d1c1d3b748380fb20baa78cd"
 
 [[package]]
 name = "security-framework"
-version = "2.3.1"
+version = "2.6.1"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "23a2ac85147a3a11d77ecf1bc7166ec0b92febfa4461c37944e180f319ece467"
+checksum = "2dc14f172faf8a0194a3aded622712b0de276821addc574fa54fc0a1167e10dc"
 dependencies = [
  "bitflags",
  "core-foundation",
- "core-foundation-sys 0.8.2",
+ "core-foundation-sys 0.8.3",
  "libc",
  "security-framework-sys",
 ]
 
 [[package]]
 name = "security-framework-sys"
-version = "2.4.2"
+version = "2.6.1"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "a9dd14d83160b528b7bfd66439110573efcfbe281b17fc2ca9f39f550d619c7e"
+checksum = "0160a13a177a45bfb43ce71c01580998474f556ad854dcbca936dd2841a5c556"
 dependencies = [
- "core-foundation-sys 0.8.2",
+ "core-foundation-sys 0.8.3",
  "libc",
 ]
 
@@ -1707,18 +1659,18 @@ dependencies = [
 
 [[package]]
 name = "serde"
-version = "1.0.110"
+version = "1.0.137"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "99e7b308464d16b56eba9964e4972a3eee817760ab60d88c3f86e1fecb08204c"
+checksum = "61ea8d54c77f8315140a05f4c7237403bf38b72704d031543aa1d16abbf517d1"
 dependencies = [
  "serde_derive",
 ]
 
 [[package]]
 name = "serde_derive"
-version = "1.0.110"
+version = "1.0.137"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "818fbf6bfa9a42d3bfcaca148547aa00c7b915bec71d1757aa2d44ca68771984"
+checksum = "1f26faba0c3959972377d3b2d306ee9f71faee9714294e41bb777f83f88578be"
 dependencies = [
  "proc-macro2",
  "quote",
@@ -1727,9 +1679,9 @@ dependencies = [
 
 [[package]]
 name = "serde_json"
-version = "1.0.53"
+version = "1.0.81"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "993948e75b189211a9b31a7528f950c6adc21f9720b6438ff80a7fa2f864cea2"
+checksum = "9b7ce2b32a1aed03c558dc61a5cd328f15aff2dbc17daad8fb8af04d2100e15c"
 dependencies = [
  "itoa",
  "ryu",
@@ -1738,9 +1690,9 @@ dependencies = [
 
 [[package]]
 name = "serde_urlencoded"
-version = "0.7.0"
+version = "0.7.1"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "edfa57a7f8d9c1d260a549e7224100f6c43d43f9103e06dd8b4095a9b2b43ce9"
+checksum = "d3491c14715ca2294c4d6a88f15e84739788c1d030eed8c110436aafdaa2f3fd"
 dependencies = [
  "form_urlencoded",
  "itoa",
@@ -1750,9 +1702,9 @@ dependencies = [
 
 [[package]]
 name = "serde_with"
-version = "1.6.1"
+version = "1.14.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "012c1e1750318ba7d775e4104e34a4eca896b0016e6b90370f12381a28fb29f0"
+checksum = "678b5a069e50bf00ecd22d0cd8ddf7c236f68581b03db652061ed5eb13a312ff"
 dependencies = [
  "serde",
  "serde_with_macros",
@@ -1760,9 +1712,9 @@ dependencies = [
 
 [[package]]
 name = "serde_with_macros"
-version = "1.3.0"
+version = "1.5.2"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "1197ff7de45494f290c1e3e1a6f80e108974681984c87a3e480991ef3d0f1950"
+checksum = "e182d6ec6f05393cc0e5ed1bf81ad6db3a8feedf8ee515ecdd369809bcce8082"
 dependencies = [
  "darling",
  "proc-macro2",
@@ -1772,47 +1724,43 @@ dependencies = [
 
 [[package]]
 name = "sha-1"
-version = "0.9.1"
+version = "0.10.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "170a36ea86c864a3f16dd2687712dd6646f7019f301e57537c7f4dc9f5916770"
+checksum = "028f48d513f9678cda28f6e4064755b3fbb2af6acd672f2c209b62323f7aea0f"
 dependencies = [
- "block-buffer",
- "cfg-if 0.1.10",
- "cpuid-bool",
+ "cfg-if",
+ "cpufeatures",
  "digest",
- "opaque-debug",
 ]
 
 [[package]]
 name = "sha2"
-version = "0.9.1"
+version = "0.10.2"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "2933378ddfeda7ea26f48c555bdad8bb446bf8a3d17832dc83e380d444cfb8c1"
+checksum = "55deaec60f81eefe3cce0dc50bda92d6d8e88f2a27df7c5033b42afeb1ed2676"
 dependencies = [
- "block-buffer",
- "cfg-if 0.1.10",
- "cpuid-bool",
+ "cfg-if",
+ "cpufeatures",
  "digest",
- "opaque-debug",
 ]
 
 [[package]]
 name = "slab"
-version = "0.4.2"
+version = "0.4.6"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "c111b5bd5695e56cffe5129854aa230b39c93a305372fdbb2668ca2394eea9f8"
+checksum = "eb703cfe953bccee95685111adeedb76fabe4e97549a58d16f03ea7b9367bb32"
 
 [[package]]
 name = "smallvec"
-version = "1.6.1"
+version = "1.8.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "fe0f37c9e8f3c5a4a66ad655a93c74daac4ad00c441533bf5c6e7990bb42604e"
+checksum = "f2dd574626839106c320a323308629dcb1acfc96e32a8cba364ddc61ac23ee83"
 
 [[package]]
 name = "socket2"
-version = "0.4.2"
+version = "0.4.4"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "5dc90fe6c7be1a323296982db1836d1ea9e47b6839496dde9a541bc496df3516"
+checksum = "66d72b759436ae32898a2af0a14218dbf55efde3feeb170eb623637db85ee1e0"
 dependencies = [
  "libc",
  "winapi",
@@ -1824,39 +1772,6 @@ version = "0.3.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "02a8428da277a8e3a15271d79943e80ccc2ef254e78813a166a08d65e4c3ece5"
 
-[[package]]
-name = "storage"
-version = "0.5.0"
-dependencies = [
- "anyhow",
- "arc-swap 0.4.8",
- "base64",
- "bitflags",
- "dbs-uhttp",
- "fuse-backend-rs",
- "futures",
- "governor",
- "hmac",
- "httpdate",
- "lazy_static",
- "libc",
- "log",
- "nix",
- "nydus-error",
- "nydus-utils",
- "reqwest",
- "serde",
- "serde_json",
- "serde_with",
- "sha-1",
- "sha2",
- "spmc",
- "tokio",
- "url",
- "vm-memory",
- "vmm-sys-util",
-]
-
 [[package]]
 name = "strsim"
 version = "0.8.0"
@@ -1865,25 +1780,25 @@ checksum = "8ea5119cdb4c55b55d432abb513a0429384878c15dde60cc77b1c99de1a95a6a"
 
 [[package]]
 name = "strsim"
-version = "0.9.3"
+version = "0.10.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "6446ced80d6c486436db5c078dde11a9f73d42b57fb273121e160b84f63d894c"
+checksum = "73473c0e59e6d5812c5dfe2a064a6444949f089e20eec9a2e5506596494e4623"
 
 [[package]]
 name = "subtle"
-version = "2.2.3"
+version = "2.4.1"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "502d53007c02d7605a05df1c1a73ee436952781653da5d0bf57ad608f66932c1"
+checksum = "6bdef32e8150c2a081110b42772ffe7d7c9032b606bc226c8260fd97e0976601"
 
 [[package]]
 name = "syn"
-version = "1.0.76"
+version = "1.0.95"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "c6f107db402c2c2055242dbf4d2af0e69197202e9faacbef9571bbe47f5a1b84"
+checksum = "fbaf6116ab8924f39d52792136fb74fd60a80194cf1b1c6ffa6453eef1c3f942"
 dependencies = [
  "proc-macro2",
  "quote",
- "unicode-xid",
+ "unicode-ident",
 ]
 
 [[package]]
@@ -1903,35 +1818,23 @@ version = "3.3.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "5cdb1ef4eaeeaddc8fbd371e5017057064af0911902ef36b39801f67cc6d79e4"
 dependencies = [
- "cfg-if 1.0.0",
+ "cfg-if",
  "fastrand",
  "libc",
- "redox_syscall 0.2.10",
+ "redox_syscall",
  "remove_dir_all",
  "winapi",
 ]
 
 [[package]]
 name = "termcolor"
-version = "1.1.0"
+version = "1.1.3"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "bb6bfa289a4d7c5766392812c0a1f4c1ba45afa1ad47803c11e1f407d846d75f"
+checksum = "bab24d30b911b2376f3a13cc2cd443142f0c81dda04c118693e35b3835757755"
 dependencies = [
  "winapi-util",
 ]
 
-[[package]]
-name = "termion"
-version = "1.5.5"
-source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "c22cec9d8978d906be5ac94bceb5a010d885c626c4c8855721a4dbd20e3ac905"
-dependencies = [
- "libc",
- "numtoa",
- "redox_syscall 0.1.56",
- "redox_termios",
-]
-
 [[package]]
 name = "textwrap"
 version = "0.11.0"
@@ -1943,18 +1846,18 @@ dependencies = [
 
 [[package]]
 name = "thiserror"
-version = "1.0.21"
+version = "1.0.31"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "318234ffa22e0920fe9a40d7b8369b5f649d490980cf7aadcf1eb91594869b42"
+checksum = "bd829fe32373d27f76265620b5309d0340cb8550f523c1dda251d6298069069a"
 dependencies = [
  "thiserror-impl",
 ]
 
 [[package]]
 name = "thiserror-impl"
-version = "1.0.21"
+version = "1.0.31"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "cae2447b6282786c3493999f40a9be2a6ad20cb8bd268b0a0dbf5a065535c0ab"
+checksum = "0396bc89e626244658bef819e22d0cc459e795a5ebe878e6ec336d1674a8d79a"
 dependencies = [
  "proc-macro2",
  "quote",
@@ -1963,26 +1866,44 @@ dependencies = [
 
 [[package]]
 name = "time"
-version = "0.1.43"
+version = "0.1.44"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "ca8a50ef2360fbd1eeb0ecd46795a87a19024eb4b53c5dc916ca1fd95fe62438"
+checksum = "6db9e6914ab8b1ae1c260a4ae7a49b6c5611b40328a735b21862567685e73255"
 dependencies = [
  "libc",
+ "wasi 0.10.0+wasi-snapshot-preview1",
  "winapi",
 ]
 
+[[package]]
+name = "tinyvec"
+version = "1.6.0"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "87cc5ceb3875bb20c2890005a4e226a4651264a5c75edb2421b52861a0a0cb50"
+dependencies = [
+ "tinyvec_macros",
+]
+
+[[package]]
+name = "tinyvec_macros"
+version = "0.1.0"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "cda74da7e1a664f795bb1f8a87ec406fb89a02522cf6e50620d016add6dbbf5c"
+
 [[package]]
 name = "tokio"
-version = "1.16.1"
+version = "1.18.2"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "0c27a64b625de6d309e8c57716ba93021dccf1b3b5c97edd6d3dd2d2135afc0a"
+checksum = "4903bf0427cf68dddd5aa6a93220756f8be0c34fcfa9f5e6191e103e15a31395"
 dependencies = [
- "bytes 1.1.0",
+ "bytes",
  "libc",
  "memchr",
- "mio 0.7.13",
+ "mio",
  "num_cpus",
+ "once_cell",
  "pin-project-lite",
+ "socket2",
  "tokio-macros",
  "winapi",
 ]
@@ -2010,94 +1931,103 @@ dependencies = [
 
 [[package]]
 name = "tokio-util"
-version = "0.6.8"
+version = "0.7.2"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "08d3725d3efa29485e87311c5b699de63cde14b00ed4d256b8318aa30ca452cd"
+checksum = "f988a1a1adc2fb21f9c12aa96441da33a1728193ae0b95d2be22dbd17fcb4e5c"
 dependencies = [
- "bytes 1.1.0",
+ "bytes",
  "futures-core",
  "futures-sink",
- "log",
  "pin-project-lite",
  "tokio",
+ "tracing",
 ]
 
 [[package]]
 name = "toml"
-version = "0.5.8"
+version = "0.5.9"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "a31142970826733df8241ef35dc040ef98c679ab14d7c3e54d827099b3acecaa"
+checksum = "8d82e1a7758622a465f8cee077614c73484dac5b836c02ff6a40d5d1010324d7"
 dependencies = [
  "serde",
 ]
 
 [[package]]
 name = "tower-service"
-version = "0.3.0"
+version = "0.3.1"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "e987b6bf443f4b5b3b6f38704195592cca41c5bb7aedd3c3693c7081f8289860"
+checksum = "360dfd1d6d30e05fda32ace2c8c70e9c0a9da713275777f5a4dbb8a1893930c6"
 
 [[package]]
 name = "tracing"
-version = "0.1.27"
+version = "0.1.34"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "c2ba9ab62b7d6497a8638dfda5e5c4fb3b2d5a7fca4118f2b96151c8ef1a437e"
+checksum = "5d0ecdcb44a79f0fe9844f0c4f33a342cbcbb5117de8001e6ba0dc2351327d09"
 dependencies = [
- "cfg-if 1.0.0",
+ "cfg-if",
  "pin-project-lite",
+ "tracing-attributes",
  "tracing-core",
 ]
 
+[[package]]
+name = "tracing-attributes"
+version = "0.1.21"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "cc6b8ad3567499f98a1db7a752b07a7c8c7c7c34c332ec00effb2b0027974b7c"
+dependencies = [
+ "proc-macro2",
+ "quote",
+ "syn",
+]
+
 [[package]]
 name = "tracing-core"
-version = "0.1.20"
+version = "0.1.26"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "46125608c26121c81b0c6d693eab5a420e416da7e43c426d2e8f7df8da8a3acf"
+checksum = "f54c8ca710e81886d498c2fd3331b56c93aa248d49de2222ad2742247c60072f"
 dependencies = [
  "lazy_static",
 ]
 
 [[package]]
 name = "try-lock"
-version = "0.2.2"
+version = "0.2.3"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "e604eb7b43c06650e854be16a2a03155743d3752dd1c943f6829e26b7a36e382"
+checksum = "59547bce71d9c38b83d9c0e92b6066c4253371f15005def0c30d9657f50c7642"
 
 [[package]]
 name = "typenum"
-version = "1.12.0"
+version = "1.15.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "373c8a200f9e67a0c95e62a4f52fbf80c23b4381c05a17845531982fa99e6b33"
+checksum = "dcf81ac59edc17cc8697ff311e8f5ef2d99fcbd9817b34cec66f90b6c3dfd987"
 
 [[package]]
 name = "unicode-bidi"
-version = "0.3.4"
+version = "0.3.8"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "49f2bd0c6468a8230e1db229cff8029217cf623c767ea5d60bfbd42729ea54d5"
-dependencies = [
- "matches",
-]
+checksum = "099b7128301d285f79ddd55b9a83d5e6b9e97c92e0ea0daebee7263e932de992"
+
+[[package]]
+name = "unicode-ident"
+version = "1.0.0"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "d22af068fba1eb5edcb4aea19d382b2a3deb4c8f9d475c589b6ada9e0fd493ee"
 
 [[package]]
 name = "unicode-normalization"
-version = "0.1.12"
+version = "0.1.19"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "5479532badd04e128284890390c1e876ef7a993d0570b3597ae43dfa1d59afa4"
+checksum = "d54590932941a9e9266f0832deed84ebe1bf2e4c9e4a3554d393d18f5e854bf9"
 dependencies = [
- "smallvec",
+ "tinyvec",
 ]
 
 [[package]]
 name = "unicode-width"
-version = "0.1.7"
-source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "caaa9d531767d1ff2150b9332433f32a24622147e5ebb1f26409d5da67afd479"
-
-[[package]]
-name = "unicode-xid"
-version = "0.2.0"
+version = "0.1.9"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "826e7639553986605ec5979c7dd957c7895e93eabed50ab2ffa7f6128a75097c"
+checksum = "3ed742d4ea2bd1176e236172c8429aaf54486e7ac098db29ffe6529e0ce50973"
 
 [[package]]
 name = "url"
@@ -2113,9 +2043,9 @@ dependencies = [
 
 [[package]]
 name = "vcpkg"
-version = "0.2.10"
+version = "0.2.15"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "6454029bf181f092ad1b853286f23e2c507d8e8194d01d92da4a55c274a5508c"
+checksum = "accd4ea62f7bb7a82fe23066fb0957d48ef677f6eeb8215f372f52e48bb32426"
 
 [[package]]
 name = "vec_map"
@@ -2125,9 +2055,9 @@ checksum = "f1bddf1187be692e79c5ffeab891132dfb0f236ed36a43c7ed39f1165ee20191"
 
 [[package]]
 name = "version_check"
-version = "0.9.2"
+version = "0.9.4"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "b5a972e5669d67ba988ce3dc826706fb0a8b01471c088cb0b6110b805cc36aed"
+checksum = "49874b5167b65d7193b8aba1567f5c7d93d001cafc34600cee003eda787e483f"
 
 [[package]]
 name = "vhost"
@@ -2137,7 +2067,7 @@ checksum = "3b56bf8f178fc500fe14505fca8b00dec76fc38f2304f461c8d9d7547982311d"
 dependencies = [
  "bitflags",
  "libc",
- "vm-memory",
+ "vm-memory 0.8.0",
  "vmm-sys-util",
 ]
 
@@ -2152,7 +2082,7 @@ dependencies = [
  "vhost",
  "virtio-bindings",
  "virtio-queue",
- "vm-memory",
+ "vm-memory 0.7.0",
  "vmm-sys-util",
 ]
 
@@ -2169,7 +2099,7 @@ source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "f90da9e627f6aaf667cc7b6548a28be332d3e1f058f4ceeb46ab6bcee5c4b74d"
 dependencies = [
  "log",
- "vm-memory",
+ "vm-memory 0.7.0",
  "vmm-sys-util",
 ]
 
@@ -2184,6 +2114,16 @@ dependencies = [
  "winapi",
 ]
 
+[[package]]
+name = "vm-memory"
+version = "0.8.0"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "767ed8aaebbff902e02e6d3749dc2baef55e46565f8a6414a065e5baee4b4a81"
+dependencies = [
+ "libc",
+ "winapi",
+]
+
 [[package]]
 name = "vmm-sys-util"
 version = "0.9.0"
@@ -2206,9 +2146,9 @@ dependencies = [
 
 [[package]]
 name = "wasi"
-version = "0.10.2+wasi-snapshot-preview1"
+version = "0.10.0+wasi-snapshot-preview1"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "fd6fbd9a79829dd1ad0cc20627bf1ed606756a7f77edff7b66b7064f9cb327c6"
+checksum = "1a143597ca7c7793eff794def352d41792a93c481eb1042423ff7ff72ba2c31f"
 
 [[package]]
 name = "wasi"
@@ -2218,19 +2158,19 @@ checksum = "9c8d87e72b64a3b4db28d11ce29237c246188f4f51057d65a7eab63b7987e423"
 
 [[package]]
 name = "wasm-bindgen"
-version = "0.2.78"
+version = "0.2.80"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "632f73e236b219150ea279196e54e610f5dbafa5d61786303d4da54f84e47fce"
+checksum = "27370197c907c55e3f1a9fbe26f44e937fe6451368324e009cba39e139dc08ad"
 dependencies = [
- "cfg-if 1.0.0",
+ "cfg-if",
  "wasm-bindgen-macro",
 ]
 
 [[package]]
 name = "wasm-bindgen-backend"
-version = "0.2.78"
+version = "0.2.80"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "a317bf8f9fba2476b4b2c85ef4c4af8ff39c3c7f0cdfeed4f82c34a880aa837b"
+checksum = "53e04185bfa3a779273da532f5025e33398409573f348985af9a1cbf3774d3f4"
 dependencies = [
  "bumpalo",
  "lazy_static",
@@ -2243,11 +2183,11 @@ dependencies = [
 
 [[package]]
 name = "wasm-bindgen-futures"
-version = "0.4.28"
+version = "0.4.30"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "8e8d7523cb1f2a4c96c1317ca690031b714a51cc14e05f712446691f413f5d39"
+checksum = "6f741de44b75e14c35df886aff5f1eb73aa114fa5d4d00dcd37b5e01259bf3b2"
 dependencies = [
- "cfg-if 1.0.0",
+ "cfg-if",
  "js-sys",
  "wasm-bindgen",
  "web-sys",
@@ -2255,9 +2195,9 @@ dependencies = [
 
 [[package]]
 name = "wasm-bindgen-macro"
-version = "0.2.78"
+version = "0.2.80"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "d56146e7c495528bf6587663bea13a8eb588d39b36b679d83972e1a2dbbdacf9"
+checksum = "17cae7ff784d7e83a2fe7611cfe766ecf034111b49deb850a3dc7699c08251f5"
 dependencies = [
  "quote",
  "wasm-bindgen-macro-support",
@@ -2265,9 +2205,9 @@ dependencies = [
 
 [[package]]
 name = "wasm-bindgen-macro-support"
-version = "0.2.78"
+version = "0.2.80"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "7803e0eea25835f8abdc585cd3021b3deb11543c6fe226dcd30b228857c5c5ab"
+checksum = "99ec0dc7a4756fffc231aab1b9f2f578d23cd391390ab27f952ae0c9b3ece20b"
 dependencies = [
  "proc-macro2",
  "quote",
@@ -2278,15 +2218,15 @@ dependencies = [
 
 [[package]]
 name = "wasm-bindgen-shared"
-version = "0.2.78"
+version = "0.2.80"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "0237232789cf037d5480773fe568aac745bfe2afbc11a863e97901780a6b47cc"
+checksum = "d554b7f530dee5964d9a9468d95c1f8b8acae4f282807e7d27d4b03099a46744"
 
 [[package]]
 name = "web-sys"
-version = "0.3.41"
+version = "0.3.57"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "863539788676619aac1a23e2df3655e96b32b0e05eb72ca34ba045ad573c625d"
+checksum = "7b17e741662c70c8bd24ac5c5b18de314a2c26c32bf8346ee1e6f53de919c283"
 dependencies = [
  "js-sys",
  "wasm-bindgen",
@@ -2323,44 +2263,87 @@ version = "0.4.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "712e227841d057c1ee1cd2fb22fa7e5a5461ae8e48fa2ca79ec42cfc1931183f"
 
+[[package]]
+name = "windows-sys"
+version = "0.36.1"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "ea04155a16a59f9eab786fe12a4a450e75cdb175f9e0d80da1e17db09f55b8d2"
+dependencies = [
+ "windows_aarch64_msvc",
+ "windows_i686_gnu",
+ "windows_i686_msvc",
+ "windows_x86_64_gnu",
+ "windows_x86_64_msvc",
+]
+
+[[package]]
+name = "windows_aarch64_msvc"
+version = "0.36.1"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "9bb8c3fd39ade2d67e9874ac4f3db21f0d710bee00fe7cab16949ec184eeaa47"
+
+[[package]]
+name = "windows_i686_gnu"
+version = "0.36.1"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "180e6ccf01daf4c426b846dfc66db1fc518f074baa793aa7d9b9aaeffad6a3b6"
+
+[[package]]
+name = "windows_i686_msvc"
+version = "0.36.1"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "e2e7917148b2812d1eeafaeb22a97e4813dfa60a3f8f78ebe204bcc88f12f024"
+
+[[package]]
+name = "windows_x86_64_gnu"
+version = "0.36.1"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "4dcd171b8776c41b97521e5da127a2d86ad280114807d0b2ab1e462bc764d9e1"
+
+[[package]]
+name = "windows_x86_64_msvc"
+version = "0.36.1"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "c811ca4a8c853ef420abd8592ba53ddbbac90410fab6903b3e79972a631f7680"
+
 [[package]]
 name = "winreg"
-version = "0.7.0"
+version = "0.10.1"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "0120db82e8a1e0b9fb3345a539c478767c0048d842860994d96113d5b667bd69"
+checksum = "80d0f4e272c85def139476380b12f9ac60926689dd2e01d4923222f40580869d"
 dependencies = [
  "winapi",
 ]
 
 [[package]]
 name = "xattr"
-version = "0.2.2"
+version = "0.2.3"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "244c3741f4240ef46274860397c7c74e50eb23624996930e484c16679633a54c"
+checksum = "6d1526bbe5aaeb5eb06885f4d987bcdfa5e23187055de9b83fe00156a821fabc"
 dependencies = [
  "libc",
 ]
 
 [[package]]
 name = "yansi"
-version = "0.5.0"
+version = "0.5.1"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "9fc79f4a1e39857fc00c3f662cbf2651c771f00e9c15fe2abc341806bd46bd71"
+checksum = "09041cd90cf85f7f8b2df60c646f853b7f535ce68f85244eb6731cf89fa498ec"
 
 [[package]]
 name = "zstd"
-version = "0.11.1+zstd.1.5.2"
+version = "0.11.2+zstd.1.5.2"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "77a16b8414fde0414e90c612eba70985577451c4c504b99885ebed24762cb81a"
+checksum = "20cc960326ece64f010d2d2107537f26dc589a6573a316bd5b1dba685fa5fde4"
 dependencies = [
  "zstd-safe",
 ]
 
 [[package]]
 name = "zstd-safe"
-version = "5.0.1+zstd.1.5.2"
+version = "5.0.2+zstd.1.5.2"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "7c12659121420dd6365c5c3de4901f97145b79651fb1d25814020ed2ed0585ae"
+checksum = "1d2a5585e04f9eea4b2a3d1eca508c4dee9592a89ef6f450c11719da0726f4db"
 dependencies = [
  "libc",
  "zstd-sys",
diff --git a/api/src/http.rs b/api/src/http.rs
index 0e5f9a7b48c..277e1d9ffd1 100644
--- a/api/src/http.rs
+++ b/api/src/http.rs
@@ -479,7 +479,7 @@ fn handle_http_request(
     let mut response = match uri_parsed {
         Ok(uri) => match HTTP_ROUTES.routes.get(uri.path()) {
             Some(route) => route
-                .handle_request(&request, &|r| {
+                .handle_request(request, &|r| {
                     kick_api_server(api_notifier.clone(), to_api, from_api, r)
                 })
                 .unwrap_or_else(|err| error_response(err, StatusCode::BadRequest)),
diff --git a/blobfs/src/lib.rs b/blobfs/src/lib.rs
index af90386163f..96a3f815d0e 100644
--- a/blobfs/src/lib.rs
+++ b/blobfs/src/lib.rs
@@ -45,7 +45,7 @@ use std::sync::{Arc, Mutex};
 use std::thread;
 
 #[cfg(feature = "virtiofs")]
-use storage::device::BlobPrefetchRequest;
+use nydus_storage::device::BlobPrefetchRequest;
 use vm_memory::ByteValued;
 
 mod sync_io;
@@ -94,7 +94,7 @@ impl FromStr for BlobOndemandConfig {
 }
 
 /// Options that configure the behavior of the blobfs fuse file system.
-#[derive(Debug, Clone, PartialEq)]
+#[derive(Default, Debug, Clone, PartialEq)]
 pub struct Config {
     /// Blobfs config is embedded with passthrough config
     pub ps_config: PassthroughConfig,
@@ -102,15 +102,6 @@ pub struct Config {
     pub blob_ondemand_cfg: String,
 }
 
-impl Default for Config {
-    fn default() -> Self {
-        Config {
-            ps_config: PassthroughConfig::default(),
-            blob_ondemand_cfg: Default::default(),
-        }
-    }
-}
-
 #[allow(dead_code)]
 struct RafsHandle {
     rafs: Arc<Mutex<Option<Rafs>>>,
diff --git a/blobfs/src/sync_io.rs b/blobfs/src/sync_io.rs
index 40146ee2a4e..16f4019773c 100644
--- a/blobfs/src/sync_io.rs
+++ b/blobfs/src/sync_io.rs
@@ -13,14 +13,14 @@ use fuse_backend_rs::api::CreateIn;
 use fuse_backend_rs::transport::FsCacheReqHandler;
 use nydus_error::eacces;
 #[cfg(feature = "virtiofs")]
+use nydus_storage::device::BlobPrefetchRequest;
+#[cfg(feature = "virtiofs")]
 use std::cmp::min;
 use std::ffi::CStr;
 use std::io;
 #[cfg(feature = "virtiofs")]
 use std::path::Path;
 use std::time::Duration;
-#[cfg(feature = "virtiofs")]
-use storage::device::BlobPrefetchRequest;
 
 impl BlobFs {
     #[cfg(feature = "virtiofs")]
@@ -50,7 +50,7 @@ impl BlobFs {
 
         let blob_file = Self::open_file(
             libc::AT_FDCWD,
-            &blob_id_full_path.as_path(),
+            blob_id_full_path.as_path(),
             libc::O_PATH | libc::O_NOFOLLOW | libc::O_CLOEXEC,
             0,
         )
diff --git a/rafs/src/fs.rs b/rafs/src/fs.rs
index 8126f5613e8..1ac3a5ee851 100644
--- a/rafs/src/fs.rs
+++ b/rafs/src/fs.rs
@@ -131,9 +131,9 @@ macro_rules! trim_backend_config {
     ($config:expr, $($i:expr),*) => {
         let mut _n :&mut serde_json::Value = &mut $config["device"]["backend"]["config"];
         if let serde_json::Value::Object(ref mut m) = _n {
-            $(if m.contains_key($i) { m[$i].take();} else {()};)*
+            $(if m.contains_key($i) { m[$i].take();} )*
         }
-    };
+    }
 }
 
 /// Rafs storage backend configuration information.
@@ -1029,7 +1029,7 @@ pub(crate) mod tests {
     #[test]
     fn it_should_enable_xattr() {
         let rafs = new_rafs_backend();
-        assert_eq!(rafs.xattr_supported(), true);
+        assert!(rafs.xattr_supported());
     }
 
     #[test]
diff --git a/rafs/src/lib.rs b/rafs/src/lib.rs
index 92e9738b687..7a1d9b38f56 100644
--- a/rafs/src/lib.rs
+++ b/rafs/src/lib.rs
@@ -75,7 +75,7 @@ impl std::error::Error for RafsError {
 
 impl Display for RafsError {
     fn fmt(&self, f: &mut Formatter) -> FmtResult {
-        write!(f, "{}", format!("{:?}", self))?;
+        write!(f, "{:?}", self)?;
         Ok(())
     }
 }
diff --git a/rafs/src/metadata/cached_v5.rs b/rafs/src/metadata/cached_v5.rs
index c214aaa6219..6a40cba4b2c 100644
--- a/rafs/src/metadata/cached_v5.rs
+++ b/rafs/src/metadata/cached_v5.rs
@@ -846,7 +846,7 @@ mod cached_tests {
         assert_eq!(cached_chunk.uncompress_offset(), 0);
         let c_xattr = cached_inode.get_xattrs().unwrap();
         for k in c_xattr.iter() {
-            let k = OsStr::from_bytes(&k);
+            let k = OsStr::from_bytes(k);
             let v = cached_inode.get_xattr(k).unwrap();
             assert_eq!(xattr.get(k).cloned().unwrap(), v.unwrap());
         }
@@ -990,7 +990,7 @@ mod cached_tests {
 
         assert_eq!(sb.max_inode, RAFS_ROOT_INODE);
         assert_eq!(sb.s_inodes.len(), 0);
-        assert_eq!(sb.validate_digest, true);
+        assert!(sb.validate_digest);
 
         let mut inode = CachedInodeV5::new(sb.s_blob.clone(), sb.s_meta.clone());
         inode.i_ino = 1;
diff --git a/rafs/src/metadata/direct_v5.rs b/rafs/src/metadata/direct_v5.rs
index c58f498fecc..d2dbbce0308 100644
--- a/rafs/src/metadata/direct_v5.rs
+++ b/rafs/src/metadata/direct_v5.rs
@@ -108,6 +108,11 @@ struct DirectMappingState {
     validate_digest: bool,
 }
 
+// Safe to Send/Sync because the underlying data structures are readonly
+unsafe impl Send for DirectMappingState {}
+
+unsafe impl Sync for DirectMappingState {}
+
 impl DirectMappingState {
     fn new(meta: &RafsSuperMeta, validate_digest: bool) -> Self {
         DirectMappingState {
@@ -180,11 +185,6 @@ pub struct DirectSuperBlockV5 {
     state: ArcSwap<DirectMappingState>,
 }
 
-// Safe to Send/Sync because the underlying data structures are readonly
-unsafe impl Send for DirectSuperBlockV5 {}
-
-unsafe impl Sync for DirectSuperBlockV5 {}
-
 impl DirectSuperBlockV5 {
     /// Create a new instance of `DirectSuperBlockV5`.
     pub fn new(meta: &RafsSuperMeta, validate_digest: bool) -> Self {
diff --git a/rafs/src/metadata/direct_v6.rs b/rafs/src/metadata/direct_v6.rs
index 8ff7e40b70b..6714feda5e2 100644
--- a/rafs/src/metadata/direct_v6.rs
+++ b/rafs/src/metadata/direct_v6.rs
@@ -61,10 +61,6 @@ use storage::device::{
 };
 use storage::utils::readahead;
 
-// Safe to Send/Sync because the underlying data structures are readonly
-unsafe impl Send for DirectSuperBlockV6 {}
-unsafe impl Sync for DirectSuperBlockV6 {}
-
 fn err_invalidate_data(rafs_err: RafsError) -> std::io::Error {
     std::io::Error::new(std::io::ErrorKind::InvalidData, rafs_err)
 }
@@ -86,6 +82,10 @@ struct DirectMappingState {
     validate_digest: bool,
 }
 
+// Safe to Send/Sync because the underlying data structures are readonly
+unsafe impl Send for DirectMappingState {}
+unsafe impl Sync for DirectMappingState {}
+
 impl DirectMappingState {
     fn new(meta: &RafsSuperMeta, validate_digest: bool) -> Self {
         DirectMappingState {
diff --git a/rafs/src/metadata/layout/mod.rs b/rafs/src/metadata/layout/mod.rs
index 690abe3dd0e..9e9969d1231 100644
--- a/rafs/src/metadata/layout/mod.rs
+++ b/rafs/src/metadata/layout/mod.rs
@@ -318,7 +318,7 @@ mod tests {
     #[test]
     fn test_bootstrap_convert() {
         let mut value = 0x504030201u64;
-        let buf: &mut [u8] = &mut value.as_mut_slice();
+        let buf = value.as_mut_slice();
 
         let v: std::io::Result<&MockU32> = (&buf[1..5]).try_into();
         assert!(v.is_err());
diff --git a/rafs/src/metadata/layout/v5.rs b/rafs/src/metadata/layout/v5.rs
index e7ff0611770..d9a12f3b69e 100644
--- a/rafs/src/metadata/layout/v5.rs
+++ b/rafs/src/metadata/layout/v5.rs
@@ -847,13 +847,13 @@ impl RafsV5ExtBlobTable {
     pub fn load(&mut self, r: &mut RafsIoReader, count: usize) -> Result<()> {
         let mut entries = Vec::<RafsV5ExtBlobEntry>::with_capacity(count);
         // Safe because it is already reserved enough space
-        let (_, mut data, _) = unsafe {
+        let (_, data, _) = unsafe {
             entries.set_len(count);
             (&mut entries).align_to_mut::<u8>()
         };
 
-        r.read_exact(&mut data)?;
-        self.entries = entries.to_vec().into_iter().map(Arc::new).collect();
+        r.read_exact(data)?;
+        self.entries = entries.iter().cloned().map(Arc::new).collect();
 
         Ok(())
     }
@@ -1387,7 +1387,7 @@ pub(crate) fn rafsv5_validate_digest(
                 return Ok(false);
             }
             let child_digest = child.get_digest();
-            let child_digest = child_digest.as_ref().as_ref();
+            let child_digest = child_digest.as_ref();
 
             hasher.digest_update(child_digest);
         }
@@ -1579,6 +1579,7 @@ pub mod tests {
         pub uncompress_offset: u64,
         pub file_offset: u64,
         pub index: u32,
+        #[allow(unused)]
         pub reserved: u32,
     }
 
@@ -1815,11 +1816,11 @@ pub mod tests {
 
         assert_eq!(table.size(), 0);
         assert_eq!(table.len(), 0);
-        assert_eq!(table.is_empty(), true);
+        assert!(table.is_empty());
         table.add_entry(0x1);
         assert_eq!(table.size(), 8);
         assert_eq!(table.len(), 1);
-        assert_eq!(table.is_empty(), false);
+        assert!(!table.is_empty());
 
         let tmp_file = TempFile::new().unwrap();
         let file = OpenOptions::new()
@@ -1843,7 +1844,7 @@ pub mod tests {
         table.load_prefetch_table_from(&mut reader, 8, 2).unwrap();
         assert_eq!(table.size(), 8);
         assert_eq!(table.len(), 2);
-        assert_eq!(table.is_empty(), false);
+        assert!(!table.is_empty());
         assert_eq!(table.inodes[0], 0x1);
         assert_eq!(table.inodes[1], 0x0);
     }
@@ -1853,12 +1854,12 @@ pub mod tests {
         let mut inode = RafsV5Inode::new();
         inode.set_name_size(3);
         assert_eq!(inode.size(), 136);
-        assert_eq!(inode.is_symlink(), false);
-        assert_eq!(inode.is_hardlink(), false);
-        assert_eq!(inode.is_dir(), false);
-        assert_eq!(inode.is_reg(), false);
-        assert_eq!(inode.has_hole(), false);
-        assert_eq!(inode.has_xattr(), false);
+        assert!(!inode.is_symlink());
+        assert!(!inode.is_hardlink());
+        assert!(!inode.is_dir());
+        assert!(!inode.is_reg());
+        assert!(!inode.has_hole());
+        assert!(!inode.has_xattr());
 
         let mut inode = RafsV5Inode::new();
         inode.set_symlink_size(3);
diff --git a/rafs/src/metadata/layout/v6.rs b/rafs/src/metadata/layout/v6.rs
index 3099d6291cf..73cd94e6791 100644
--- a/rafs/src/metadata/layout/v6.rs
+++ b/rafs/src/metadata/layout/v6.rs
@@ -1198,6 +1198,7 @@ impl Default for RafsV6Blob {
 impl_bootstrap_converter!(RafsV6Blob);
 
 impl RafsV6Blob {
+    #[allow(clippy::wrong_self_convention)]
     fn to_blob_info(&self) -> Result<BlobInfo> {
         // debug_assert!(RAFS_DIGEST_LENGTH == 32);
         debug_assert!(size_of::<RafsV6Blob>() == 256);
@@ -2021,7 +2022,7 @@ mod tests {
 
         let mut entry1 = RafsV6XattrEntry::new();
         reader.read_exact(entry1.as_mut()).unwrap();
-        assert_eq!((entry1 == target1 || entry1 == target2), true);
+        assert!((entry1 == target1 || entry1 == target2));
 
         size += size_of::<RafsV6XattrEntry>()
             + entry1.name_len() as usize
@@ -2034,9 +2035,9 @@ mod tests {
         let mut entry2 = RafsV6XattrEntry::new();
         reader.read_exact(entry2.as_mut()).unwrap();
         if entry1 == target1 {
-            assert_eq!(entry2 == target2, true);
+            assert!(entry2 == target2);
         } else {
-            assert_eq!(entry2 == target1, true);
+            assert!(entry2 == target1);
         }
     }
 }
diff --git a/rafs/src/metadata/md_v5.rs b/rafs/src/metadata/md_v5.rs
index a3cafe0a92d..928c952a5d0 100644
--- a/rafs/src/metadata/md_v5.rs
+++ b/rafs/src/metadata/md_v5.rs
@@ -162,7 +162,7 @@ impl RafsSuper {
     pub(crate) fn amplify_io(
         &self,
         max_size: u32,
-        descs: &mut Vec<BlobIoVec>,
+        descs: &mut [BlobIoVec],
         inode: &Arc<dyn RafsInode>,
         window_base: u64,
         mut window_size: u64,
diff --git a/rafs/src/metadata/md_v6.rs b/rafs/src/metadata/md_v6.rs
index 1783ecf79f2..54e88ac696e 100644
--- a/rafs/src/metadata/md_v6.rs
+++ b/rafs/src/metadata/md_v6.rs
@@ -135,7 +135,7 @@ mod tests {
             ..Default::default()
         };
 
-        assert_eq!(rs.try_load_v6(&mut reader).unwrap(), false);
+        assert!(!rs.try_load_v6(&mut reader).unwrap());
     }
 
     #[test]
@@ -155,7 +155,7 @@ mod tests {
             ..Default::default()
         };
 
-        assert_eq!(rs.try_load_v6(&mut reader).unwrap(), false);
+        assert!(!rs.try_load_v6(&mut reader).unwrap());
     }
 
     #[test]
diff --git a/rafs/src/metadata/mod.rs b/rafs/src/metadata/mod.rs
index 1abfeee0963..5b39bf695d0 100644
--- a/rafs/src/metadata/mod.rs
+++ b/rafs/src/metadata/mod.rs
@@ -263,7 +263,7 @@ impl Default for RafsSuperFlags {
 
 impl Display for RafsSuperFlags {
     fn fmt(&self, f: &mut Formatter) -> FmtResult {
-        write!(f, "{}", format!("{:?}", self))?;
+        write!(f, "{:?}", self)?;
         Ok(())
     }
 }
@@ -452,7 +452,7 @@ impl RafsSuper {
     /// Create a new `RafsSuper` instance from a `RafsConfig` object.
     pub fn new(conf: &RafsConfig) -> Result<Self> {
         Ok(Self {
-            mode: RafsMode::from_str(&conf.mode.as_str())?,
+            mode: RafsMode::from_str(conf.mode.as_str())?,
             validate_digest: conf.digest_validate,
             ..Default::default()
         })
diff --git a/rafs/src/metadata/noop.rs b/rafs/src/metadata/noop.rs
index 2004dc10ed6..1da05a3a7f9 100644
--- a/rafs/src/metadata/noop.rs
+++ b/rafs/src/metadata/noop.rs
@@ -13,14 +13,9 @@ use storage::device::BlobInfo;
 use crate::metadata::{Inode, RafsInode, RafsSuperBlock, RafsSuperInodes};
 use crate::{RafsIoReader, RafsResult};
 
+#[derive(Default)]
 pub struct NoopSuperBlock {}
 
-impl Default for NoopSuperBlock {
-    fn default() -> Self {
-        Self {}
-    }
-}
-
 impl NoopSuperBlock {
     pub fn new() -> Self {
         Self::default()
diff --git a/rafs/src/mock/mock_inode.rs b/rafs/src/mock/mock_inode.rs
index 7f4a16526a3..16278e9caf4 100644
--- a/rafs/src/mock/mock_inode.rs
+++ b/rafs/src/mock/mock_inode.rs
@@ -29,6 +29,7 @@ use crate::metadata::{
 use storage::device::v5::BlobV5ChunkInfo;
 
 #[derive(Default, Clone, Debug)]
+#[allow(unused)]
 pub struct MockInode {
     i_ino: Inode,
     i_name: OsString,
diff --git a/rafs/src/mock/mock_super.rs b/rafs/src/mock/mock_super.rs
index e667c01193f..87f9e227b1f 100644
--- a/rafs/src/mock/mock_super.rs
+++ b/rafs/src/mock/mock_super.rs
@@ -13,20 +13,13 @@ use storage::device::BlobInfo;
 use crate::metadata::{Inode, RafsInode, RafsSuperBlock, RafsSuperInodes};
 use crate::{RafsIoReader, RafsResult};
 
+#[derive(Default)]
 pub struct MockSuperBlock {
     pub inodes: HashMap<Inode, Arc<dyn RafsInode + Send + Sync>>,
 }
 
 pub const CHUNK_SIZE: u32 = 200;
 
-impl Default for MockSuperBlock {
-    fn default() -> Self {
-        Self {
-            inodes: HashMap::new(),
-        }
-    }
-}
-
 impl MockSuperBlock {
     pub fn new() -> Self {
         Self {
diff --git a/src/bin/nydus-image/builder/diff.rs b/src/bin/nydus-image/builder/diff.rs
index e73002de09c..1dcfcb5cc4f 100644
--- a/src/bin/nydus-image/builder/diff.rs
+++ b/src/bin/nydus-image/builder/diff.rs
@@ -159,7 +159,7 @@ fn same_file(f1: &Node, f2: &Node) -> bool {
         return false;
     }
     let cap_name = OsStr::new("security.capability");
-    if f1.xattrs.get(&cap_name) != f2.xattrs.get(&cap_name) {
+    if f1.xattrs.get(cap_name) != f2.xattrs.get(cap_name) {
         return false;
     }
     if !f1.is_dir() {
@@ -751,7 +751,7 @@ impl DiffBuilder {
         }
 
         let blob_mgr = self.blob_map.to_blob_mgr();
-        BuildOutput::new(&blob_mgr, &bootstrap_mgr)
+        BuildOutput::new(&blob_mgr, bootstrap_mgr)
     }
 
     fn build_with_diff(
@@ -804,7 +804,7 @@ impl DiffBuilder {
         }
 
         let blob_mgr = self.blob_map.to_blob_mgr();
-        BuildOutput::new(&blob_mgr, &bootstrap_mgr)
+        BuildOutput::new(&blob_mgr, bootstrap_mgr)
     }
 }
 
diff --git a/src/bin/nydus-image/builder/directory.rs b/src/bin/nydus-image/builder/directory.rs
index ef92f6a9ab6..0cc983d72aa 100644
--- a/src/bin/nydus-image/builder/directory.rs
+++ b/src/bin/nydus-image/builder/directory.rs
@@ -191,6 +191,6 @@ impl Builder for DirectoryBuilder {
         }
 
         bootstrap_mgr.add(bootstrap_ctx);
-        BuildOutput::new(&blob_mgr, &bootstrap_mgr)
+        BuildOutput::new(blob_mgr, bootstrap_mgr)
     }
 }
diff --git a/src/bin/nydus-image/builder/stargz.rs b/src/bin/nydus-image/builder/stargz.rs
index a51fde845e2..dec9106fc94 100644
--- a/src/bin/nydus-image/builder/stargz.rs
+++ b/src/bin/nydus-image/builder/stargz.rs
@@ -98,6 +98,7 @@ struct TocEntry {
     pub offset: u64,
 
     // the Offset of the next entry with a non-zero Offset
+    #[allow(unused)]
     #[serde(skip)]
     pub next_offset: u64,
 
@@ -137,9 +138,11 @@ struct TocEntry {
     #[serde(default, rename = "chunkSize")]
     pub chunk_size: u64,
 
+    #[allow(unused)]
     #[serde(skip)]
     pub children: Vec<RcTocEntry>,
 
+    #[allow(unused)]
     #[serde(skip)]
     pub inode: u64,
 }
@@ -402,14 +405,14 @@ impl StargzIndexTreeBuilder {
                 }
             }
             if entry.is_reg() {
-                last_reg_entry = Some(&entry);
+                last_reg_entry = Some(entry);
             }
             if entry.is_chunk() {
                 continue;
             }
 
             let mut lost_dirs = Vec::new();
-            self.make_lost_dirs(&entry, &mut lost_dirs)?;
+            self.make_lost_dirs(entry, &mut lost_dirs)?;
             for dir in &lost_dirs {
                 let node = self.parse_node(dir, ctx.explicit_uidgid, ctx.fs_version, layer_idx)?;
                 nodes.push(node);
@@ -664,6 +667,6 @@ impl Builder for StargzBuilder {
         bootstrap.dump(ctx, &mut bootstrap_ctx, &blob_table)?;
 
         bootstrap_mgr.add(bootstrap_ctx);
-        BuildOutput::new(&blob_mgr, &bootstrap_mgr)
+        BuildOutput::new(blob_mgr, bootstrap_mgr)
     }
 }
diff --git a/src/bin/nydus-image/core/blob_compact.rs b/src/bin/nydus-image/core/blob_compact.rs
index f6b0cf7da8b..008918fd1d4 100644
--- a/src/bin/nydus-image/core/blob_compact.rs
+++ b/src/bin/nydus-image/core/blob_compact.rs
@@ -85,6 +85,7 @@ impl ChunkKey {
 #[derive(Clone, Debug)]
 struct ChunkSet {
     chunks: HashMap<ChunkKey, ChunkWrapper>,
+    #[allow(unused)]
     version: RafsVersion,
     total_size: usize,
 }
diff --git a/src/bin/nydus-image/core/bootstrap.rs b/src/bin/nydus-image/core/bootstrap.rs
index eef313b14b4..af494bafd37 100644
--- a/src/bin/nydus-image/core/bootstrap.rs
+++ b/src/bin/nydus-image/core/bootstrap.rs
@@ -105,7 +105,7 @@ impl Bootstrap {
         timing_tracer!(
             {
                 for node in &bootstrap_ctx.nodes {
-                    tree.apply(&node, true, ctx.whiteout_spec)
+                    tree.apply(node, true, ctx.whiteout_spec)
                         .context("failed to apply tree")?;
                 }
                 Ok(true)
@@ -285,7 +285,7 @@ impl Bootstrap {
         }
         /* XXX: `.' and `..' should be sorted globally too */
         node.dirents
-            .sort_unstable_by(|a, b| a.1.as_os_str().cmp(&b.1.as_os_str()) as std::cmp::Ordering);
+            .sort_unstable_by(|a, b| a.1.as_os_str().cmp(b.1.as_os_str()) as std::cmp::Ordering);
 
         for dir in dirs {
             self.update_dirents(nodes, dir, tree.node.offset);
@@ -364,8 +364,8 @@ impl Bootstrap {
         blob_table: &RafsBlobTable,
     ) -> Result<()> {
         match blob_table {
-            RafsBlobTable::V5(table) => self.dump_rafsv5(ctx, bootstrap_ctx, &table),
-            RafsBlobTable::V6(table) => self.dump_rafsv6(ctx, bootstrap_ctx, &table),
+            RafsBlobTable::V5(table) => self.dump_rafsv5(ctx, bootstrap_ctx, table),
+            RafsBlobTable::V6(table) => self.dump_rafsv6(ctx, bootstrap_ctx, table),
         }
     }
 
@@ -484,7 +484,7 @@ impl Bootstrap {
         timing_tracer!(
             {
                 for node in &bootstrap_ctx.nodes {
-                    node.dump_bootstrap_v5(&ctx, bootstrap_ctx.writer.as_mut())
+                    node.dump_bootstrap_v5(ctx, bootstrap_ctx.writer.as_mut())
                         .context("failed to dump bootstrap")?;
                 }
 
diff --git a/src/bin/nydus-image/core/context.rs b/src/bin/nydus-image/core/context.rs
index 312b9dbaec8..9e990116933 100644
--- a/src/bin/nydus-image/core/context.rs
+++ b/src/bin/nydus-image/core/context.rs
@@ -218,7 +218,7 @@ impl ArtifactWriter {
             ArtifactStorage::FileDir(ref p) => {
                 // Better we can use open(2) O_TMPFILE, but for compatibility sake, we delay this job.
                 // TODO: Blob dir existence?
-                let tmp = TempFile::new_in(&p)
+                let tmp = TempFile::new_in(p)
                     .with_context(|| format!("failed to create temp file in {:?}", p))?;
                 let tmp2 = tmp.as_file().try_clone()?;
                 Ok(Self {
@@ -569,6 +569,7 @@ impl BlobManager {
         self.blobs.last()
     }
 
+    #[allow(clippy::wrong_self_convention)]
     pub fn from_blob_table(&mut self, blob_table: Vec<Arc<BlobInfo>>) {
         self.blobs = blob_table
             .iter()
diff --git a/src/bin/nydus-image/core/node.rs b/src/bin/nydus-image/core/node.rs
index 14345d9a4f9..b5c74cdf5f4 100644
--- a/src/bin/nydus-image/core/node.rs
+++ b/src/bin/nydus-image/core/node.rs
@@ -355,8 +355,8 @@ impl Node {
                 chunk_size
             };
 
-            let mut chunk_data = &mut blob_ctx.chunk_data_buf[0..chunk_size as usize];
-            file.read_exact(&mut chunk_data)
+            let chunk_data = &mut blob_ctx.chunk_data_buf[0..chunk_size as usize];
+            file.read_exact(chunk_data)
                 .with_context(|| format!("failed to read node file {:?}", self.path))?;
 
             // TODO: check for hole chunks. One possible way is to always save
@@ -411,7 +411,7 @@ impl Node {
             }
 
             // Compress chunk data
-            let (compressed, is_compressed) = compress::compress(&chunk_data, ctx.compressor)
+            let (compressed, is_compressed) = compress::compress(chunk_data, ctx.compressor)
                 .with_context(|| format!("failed to compress node file {:?}", self.path))?;
             let compressed_size = compressed.len();
 
@@ -637,7 +637,7 @@ impl Node {
                     0,
                     RafsV6Dirent::file_type(*file_type),
                 );
-                dirents.push((entry, &name));
+                dirents.push((entry, name));
 
                 nameoff += size_of::<RafsV6Dirent>() as u64;
                 used += len as u64;
@@ -1869,7 +1869,7 @@ mod tests {
         node.set_v6_offset(&mut bootstrap_ctx);
         assert_eq!(node.offset, 0);
         assert_eq!(node.v6_datalayout, EROFS_INODE_CHUNK_BASED);
-        assert_eq!(node.v6_compact_inode, true);
+        assert!(node.v6_compact_inode);
         assert_eq!(bootstrap_ctx.offset, 32);
 
         // symlink and dir are handled in the same way.
@@ -1980,7 +1980,7 @@ mod tests {
         )
         .unwrap();
 
-        assert_eq!(reg_node.v6_compact_inode, true);
+        assert!(reg_node.v6_compact_inode);
 
         let pyc_node = Node::new(
             RafsVersion::V6,
@@ -1993,7 +1993,7 @@ mod tests {
         )
         .unwrap();
 
-        assert_eq!(pyc_node.v6_compact_inode, false);
+        assert!(!pyc_node.v6_compact_inode);
 
         std::fs::remove_file(&pa_pyc).unwrap();
     }
diff --git a/src/bin/nydus-image/core/tree.rs b/src/bin/nydus-image/core/tree.rs
index 7382c23a1a3..82da6f83515 100644
--- a/src/bin/nydus-image/core/tree.rs
+++ b/src/bin/nydus-image/core/tree.rs
@@ -48,10 +48,10 @@ impl Tree {
 
     /// Load a `Tree` from a bootstrap file, and optionally caches chunk information.
     pub fn from_bootstrap<T: ChunkDict>(rs: &RafsSuper, chunk_dict: &mut T) -> Result<Self> {
-        let tree_builder = MetadataTreeBuilder::new(&rs);
+        let tree_builder = MetadataTreeBuilder::new(rs);
         let root_inode = rs.get_inode(RAFS_ROOT_INODE, true)?;
         let root_node =
-            MetadataTreeBuilder::parse_node(&rs, root_inode.as_ref(), PathBuf::from("/"))?;
+            MetadataTreeBuilder::parse_node(rs, root_inode.as_ref(), PathBuf::from("/"))?;
         let mut tree = Tree::new(root_node);
 
         tree.children = timing_tracer!(
@@ -277,7 +277,7 @@ impl<'a> MetadataTreeBuilder<'a> {
             let child = inode.get_child_by_index(idx)?;
             let child_ino = child.ino();
             let child_path = parent_path.join(child.name());
-            let child = Self::parse_node(&self.rs, child.as_ref(), child_path)?;
+            let child = Self::parse_node(self.rs, child.as_ref(), child_path)?;
 
             if child.is_reg() {
                 for chunk in &child.chunks {
@@ -323,7 +323,7 @@ impl<'a> MetadataTreeBuilder<'a> {
         for name in inode.get_xattrs()? {
             let name = bytes_to_os_str(&name);
             let value = inode.get_xattr(name)?;
-            xattrs.add(name.to_os_string(), value.unwrap_or_else(Vec::new));
+            xattrs.add(name.to_os_string(), value.unwrap_or_default());
         }
 
         // Nodes loaded from bootstrap will only be used as `Overlay::Lower`, so make `dev` invalid
diff --git a/src/bin/nydus-image/inspect.rs b/src/bin/nydus-image/inspect.rs
index 109926724c0..a205780a5ae 100644
--- a/src/bin/nydus-image/inspect.rs
+++ b/src/bin/nydus-image/inspect.rs
@@ -729,7 +729,7 @@ pub(crate) enum ExecuteError {
     IllegalCommand,
     ArgumentParse,
     Exit,
-    ExecuteError(anyhow::Error),
+    ExecError(anyhow::Error),
 }
 
 pub(crate) struct Executor {}
@@ -740,7 +740,7 @@ impl Executor {
         input: String,
     ) -> std::result::Result<Option<Value>, ExecuteError> {
         let mut raw = input
-            .strip_suffix("\n")
+            .strip_suffix('\n')
             .unwrap_or(&input)
             .split_ascii_whitespace();
         let cmd = match raw.next() {
@@ -789,7 +789,7 @@ impl Executor {
                 };
             }
         }
-        .map_err(ExecuteError::ExecuteError)?;
+        .map_err(ExecuteError::ExecError)?;
 
         Ok(output)
     }
@@ -826,7 +826,7 @@ impl Prompt {
                 Err(ExecuteError::Exit) => break,
                 Err(ExecuteError::IllegalCommand) => continue,
                 Err(ExecuteError::HelpCommand) => continue,
-                Err(ExecuteError::ExecuteError(e)) => {
+                Err(ExecuteError::ExecError(e)) => {
                     println!("Failed in executing command, {:?}", e);
                     continue;
                 }
diff --git a/src/bin/nydus-image/main.rs b/src/bin/nydus-image/main.rs
index ca66ad393d2..0b2083678c1 100644
--- a/src/bin/nydus-image/main.rs
+++ b/src/bin/nydus-image/main.rs
@@ -571,19 +571,19 @@ struct Command {}
 
 impl Command {
     fn create(matches: &clap::ArgMatches, build_info: &BuildTimeInfo) -> Result<()> {
-        let blob_id = Self::get_blob_id(&matches)?;
-        let chunk_size = Self::get_chunk_size(&matches)?;
-        let blob_offset = Self::get_blob_offset(&matches)?;
-        let parent_bootstrap = Self::get_parent_bootstrap(&matches)?;
+        let blob_id = Self::get_blob_id(matches)?;
+        let chunk_size = Self::get_chunk_size(matches)?;
+        let blob_offset = Self::get_blob_offset(matches)?;
+        let parent_bootstrap = Self::get_parent_bootstrap(matches)?;
         let source_path = PathBuf::from(matches.value_of("SOURCE").unwrap());
         let extra_paths: Vec<PathBuf> = matches
             .values_of("SOURCE")
             .map(|paths| paths.map(PathBuf::from).skip(1).collect())
             .unwrap();
         let source_type: SourceType = matches.value_of("source-type").unwrap().parse()?;
-        let blob_stor = Self::get_blob_storage(&matches, source_type)?;
+        let blob_stor = Self::get_blob_storage(matches, source_type)?;
         let repeatable = matches.is_present("repeatable");
-        let version = Self::get_fs_version(&matches)?;
+        let version = Self::get_fs_version(matches)?;
         let aligned_chunk = if version.is_v6() {
             info!("v6 enforces to use \"aligned-chunk\".");
             true
@@ -654,12 +654,12 @@ impl Command {
                 Self::ensure_directory(&bootstrap_dir)?;
                 ArtifactStorage::FileDir(PathBuf::from(bootstrap_dir))
             } else {
-                let bootstrap_path = Self::get_bootstrap(&matches)?;
+                let bootstrap_path = Self::get_bootstrap(matches)?;
                 ArtifactStorage::SingleFile(PathBuf::from(bootstrap_path))
             };
             BootstrapManager::new(Some(storage), parent_bootstrap)
         } else {
-            let bootstrap_path = Self::get_bootstrap(&matches)?;
+            let bootstrap_path = Self::get_bootstrap(matches)?;
             BootstrapManager::new(
                 Some(ArtifactStorage::SingleFile(PathBuf::from(bootstrap_path))),
                 parent_bootstrap,
@@ -694,11 +694,11 @@ impl Command {
         if let Some(bootstrap_path) =
             bootstrap_mgr.get_bootstrap_path(&build_output.last_bootstrap_name)
         {
-            Self::validate_image(&matches, &bootstrap_path)?;
+            Self::validate_image(matches, &bootstrap_path)?;
             info!("build successfully: {:?}", build_output,);
         }
 
-        OutputSerializer::dump(matches, build_output, &build_info)?;
+        OutputSerializer::dump(matches, build_output, build_info)?;
 
         Ok(())
     }
@@ -708,7 +708,7 @@ impl Command {
             .values_of("SOURCE")
             .map(|paths| paths.map(PathBuf::from).collect())
             .unwrap();
-        let target_bootstrap_path = Self::get_bootstrap(&matches)?;
+        let target_bootstrap_path = Self::get_bootstrap(matches)?;
         let chunk_dict_path = if let Some(arg) = matches.value_of("chunk-dict") {
             Some(parse_chunk_dict_arg(arg)?)
         } else {
@@ -752,7 +752,7 @@ impl Command {
         if let Some(build_output) =
             BlobCompactor::do_compact(bootstrap_path, dst_bootstrap, chunk_dict, backend, &config)?
         {
-            OutputSerializer::dump(matches, build_output, &build_info)?;
+            OutputSerializer::dump(matches, build_output, build_info)?;
         }
         Ok(())
     }
@@ -766,7 +766,7 @@ impl Command {
             .with_context(|| format!("failed to check bootstrap {:?}", bootstrap_path))?;
 
         info!("bootstrap is valid, blobs: {:?}", blob_ids);
-        OutputSerializer::dump_with_check(matches, &build_info, blob_ids)?;
+        OutputSerializer::dump_with_check(matches, build_info, blob_ids)?;
 
         Ok(())
     }
@@ -931,7 +931,7 @@ impl Command {
     #[allow(dead_code)]
     fn validate_image(matches: &clap::ArgMatches, bootstrap_path: &Path) -> Result<()> {
         if !matches.is_present("disable-check") {
-            let mut validator = Validator::new(&bootstrap_path)?;
+            let mut validator = Validator::new(bootstrap_path)?;
             timing_tracer!(
                 {
                     validator
diff --git a/src/bin/nydus-image/merge.rs b/src/bin/nydus-image/merge.rs
index 9a522d22890..e2ac82916f2 100644
--- a/src/bin/nydus-image/merge.rs
+++ b/src/bin/nydus-image/merge.rs
@@ -75,7 +75,7 @@ impl Merger {
         // Get the blobs come from chunk dict bootstrap.
         let mut chunk_dict_blobs = HashSet::new();
         if let Some(chunk_dict_path) = &chunk_dict {
-            let rs = RafsSuper::load_from_metadata(&chunk_dict_path, RafsMode::Direct, true)
+            let rs = RafsSuper::load_from_metadata(chunk_dict_path, RafsMode::Direct, true)
                 .context(format!("load chunk dict bootstrap {:?}", chunk_dict_path))?;
             for blob in rs.superblock.get_blob_infos() {
                 chunk_dict_blobs.insert(blob.blob_id().to_string());
@@ -83,7 +83,7 @@ impl Merger {
         }
 
         for (layer_idx, bootstrap_path) in sources.iter().enumerate() {
-            let rs = RafsSuper::load_from_metadata(&bootstrap_path, RafsMode::Direct, true)
+            let rs = RafsSuper::load_from_metadata(bootstrap_path, RafsMode::Direct, true)
                 .context(format!("load bootstrap {:?}", bootstrap_path))?;
 
             let current_flags = Flags::from_meta(&rs.meta);
@@ -172,7 +172,7 @@ impl Merger {
         let storage = ArtifactStorage::SingleFile(target.clone());
         let mut bootstrap_ctx = BootstrapContext::new(Some(storage), false, false)?;
         bootstrap.build(ctx, &mut bootstrap_ctx, &mut tree)?;
-        let blob_table = blob_mgr.to_blob_table(&ctx)?;
+        let blob_table = blob_mgr.to_blob_table(ctx)?;
         bootstrap
             .dump(ctx, &mut bootstrap_ctx, &blob_table)
             .context(format!("dump bootstrap to {:?}", target))?;
diff --git a/src/bin/nydus-image/trace.rs b/src/bin/nydus-image/trace.rs
index 6818e1dfb14..dde82b0dce2 100644
--- a/src/bin/nydus-image/trace.rs
+++ b/src/bin/nydus-image/trace.rs
@@ -297,13 +297,7 @@ pub mod tests {
         t3.join().unwrap();
 
         let map = root_tracer!().dump_summary_map().unwrap();
-        assert_eq!(
-            map["registered_events"]["event_1"].as_u64(),
-            serde::export::Some(600)
-        );
-        assert_eq!(
-            map["registered_events"]["event_2"].as_u64(),
-            serde::export::Some(900)
-        );
+        assert_eq!(map["registered_events"]["event_1"].as_u64(), Some(600));
+        assert_eq!(map["registered_events"]["event_2"].as_u64(), Some(900));
     }
 }
diff --git a/src/bin/nydusctl/commands.rs b/src/bin/nydusctl/commands.rs
index 171ddeb0319..f97c2097e3f 100644
--- a/src/bin/nydusctl/commands.rs
+++ b/src/bin/nydusctl/commands.rs
@@ -59,7 +59,7 @@ impl CommandBlobcache {
         let m = metrics.as_object().unwrap();
 
         if raw {
-            println!("{}", metrics.to_string());
+            println!("{}", metrics);
         } else {
             print!(
                 r#"
@@ -191,7 +191,7 @@ Block Sizes/millis:
         }
 
         if raw {
-            println!("{}", metrics.to_string());
+            println!("{}", metrics);
         } else {
             let sizes = vec!["<1K", "1K~", "4K~", "16K~", "64K~", "128K~", "512K~", "1M~"];
             let m = metrics.as_object().unwrap();
@@ -264,7 +264,7 @@ impl CommandFsStats {
         let m = metrics.as_object().unwrap();
         let fop_counter = m["fop_hits"].as_array().unwrap();
         if raw {
-            println!("{}", metrics.to_string());
+            println!("{}", metrics);
         } else {
             print!(
                 r#"
@@ -326,7 +326,7 @@ impl CommandDaemon {
             let backend_list = i["backend_collection"].as_object().unwrap();
 
             if raw {
-                println!("{}", info.to_string());
+                println!("{}", info);
             } else {
                 let version_info = &i["version"];
                 print!(
@@ -408,7 +408,7 @@ impl CommandUmount {
         let mountpoint = &p["mountpoint"];
 
         client
-            .delete("mount", None, Some(vec![("mountpoint", &mountpoint)]))
+            .delete("mount", None, Some(vec![("mountpoint", mountpoint)]))
             .await
     }
 }
diff --git a/src/bin/nydusd/fusedev.rs b/src/bin/nydusd/fusedev.rs
index 084222fd8e7..f913241b20d 100644
--- a/src/bin/nydusd/fusedev.rs
+++ b/src/bin/nydusd/fusedev.rs
@@ -399,7 +399,7 @@ fn is_mounted(mp: impl AsRef<Path>) -> Result<bool> {
     let match_mp = mpb.iter().find(|mp_stat| unsafe {
         let mp_name = CStr::from_ptr(&mp_stat.f_mntonname as *const i8);
         let mp = CStr::from_ptr(mp.as_ptr());
-        mp.eq(&mp_name)
+        mp.eq(mp_name)
     });
 
     Ok(match_mp.is_some())
diff --git a/src/bin/nydusd/main.rs b/src/bin/nydusd/main.rs
index 9fefaa3697a..f9042584881 100644
--- a/src/bin/nydusd/main.rs
+++ b/src/bin/nydusd/main.rs
@@ -29,7 +29,7 @@ use clap::{App, Arg, ArgMatches, SubCommand, Values};
 use fuse_backend_rs::api::{Vfs, VfsOptions};
 use mio::{Events, Poll, Token, Waker};
 use nix::sys::signal;
-use rlimit::{rlim, Resource};
+use rlimit::Resource;
 
 use nydus::FsBackendType;
 use nydus_app::{dump_program_info, setup_logging, BuildTimeInfo};
@@ -55,9 +55,9 @@ mod service_controller;
 mod upgrade;
 
 /// Minimal number of file descriptors reserved for system.
-const RLIMIT_NOFILE_RESERVED: rlim = 16384;
+const RLIMIT_NOFILE_RESERVED: u64 = 16384;
 /// Default number of file descriptors.
-const RLIMIT_NOFILE_MAX: rlim = 1_000_000;
+const RLIMIT_NOFILE_MAX: u64 = 1_000_000;
 
 lazy_static! {
     static ref DAEMON_CONTROLLER: DaemonController = DaemonController::new();
@@ -440,10 +440,10 @@ fn prepare_commandline_options() -> App<'static, 'static> {
 }
 
 #[cfg(target_os = "macos")]
-fn get_max_rlimit_nofile() -> Result<rlim> {
+fn get_max_rlimit_nofile() -> Result<u64> {
     let mut mib = [nix::libc::CTL_KERN, nix::libc::KERN_MAXFILES];
-    let mut file_max: rlim = 0;
-    let mut size = std::mem::size_of::<rlim>();
+    let mut file_max: u64 = 0;
+    let mut size = std::mem::size_of::<u64>();
     // Safe because the arguments are valid and we have checked the result.
     let res = unsafe {
         nix::libc::sysctl(
@@ -460,18 +460,18 @@ fn get_max_rlimit_nofile() -> Result<rlim> {
 }
 
 #[cfg(target_os = "linux")]
-fn get_max_rlimit_nofile() -> Result<rlim> {
+fn get_max_rlimit_nofile() -> Result<u64> {
     let file_max = std::fs::read_to_string("/proc/sys/fs/file-max")?;
     file_max
         .trim()
-        .parse::<rlim>()
+        .parse::<u64>()
         .map_err(|_| eother!("invalid content from fs.file-max"))
 }
 
 /// Handle command line option to tune rlimit for maximum file descriptor number.
 fn handle_rlimit_nofile_option(args: &ArgMatches, option_name: &str) -> Result<()> {
     // `rlimit-nofile` has a default value, so safe to unwrap().
-    let rlimit_nofile: rlim = args.value_of(option_name).unwrap().parse().map_err(|_e| {
+    let rlimit_nofile: u64 = args.value_of(option_name).unwrap().parse().map_err(|_e| {
         Error::new(
             ErrorKind::InvalidInput,
             "invalid value for option `rlimit-nofile`",
diff --git a/storage/Cargo.toml b/storage/Cargo.toml
index cdb698f860d..854fb6c9be1 100644
--- a/storage/Cargo.toml
+++ b/storage/Cargo.toml
@@ -15,6 +15,7 @@ arc-swap = "=0.4"
 base64 = { version = "0.13.0", optional = true }
 bitflags = "1.2.1"
 futures = "0.3"
+# pin governor to avoid multi versions of hashbrown
 governor = "=0.4.1"
 hmac = { version = "0.12.1", optional = true }
 httpdate = { version = "1.0", optional = true }
diff --git a/storage/src/backend/connection.rs b/storage/src/backend/connection.rs
index 1efd71406c2..53e2c09bb84 100644
--- a/storage/src/backend/connection.rs
+++ b/storage/src/backend/connection.rs
@@ -382,9 +382,9 @@ mod tests {
 
     #[test]
     fn test_is_success_status() {
-        assert_eq!(is_success_status(StatusCode::CONTINUE), false);
-        assert_eq!(is_success_status(StatusCode::OK), true);
-        assert_eq!(is_success_status(StatusCode::PERMANENT_REDIRECT), true);
-        assert_eq!(is_success_status(StatusCode::BAD_REQUEST), false);
+        assert!(!is_success_status(StatusCode::CONTINUE));
+        assert!(is_success_status(StatusCode::OK));
+        assert!(is_success_status(StatusCode::PERMANENT_REDIRECT));
+        assert!(!is_success_status(StatusCode::BAD_REQUEST));
     }
 }
diff --git a/storage/src/backend/localfs.rs b/storage/src/backend/localfs.rs
index 72ba9133956..1bb49ba7c2e 100644
--- a/storage/src/backend/localfs.rs
+++ b/storage/src/backend/localfs.rs
@@ -408,12 +408,14 @@ impl LocalFsTracer {
 /// Struct to prefetch blob data according to access trace.
 #[derive(Debug)]
 struct Prefetcher {
-    blob_file: File,     // blob file for readahead
-    blob_size: u64,      // blob file size
-    log_path: String,    // log file path
-    log_file: File,      // file for access logging
+    blob_file: File, // blob file for readahead
+    blob_size: u64,  // blob file size
+    #[allow(unused)]
+    log_path: String, // log file path
+    #[allow(unused)]
+    log_file: File, // file for access logging
     log_base: *const u8, // mmapped access log base
-    log_size: u64,       // size of mmapped area
+    log_size: u64,   // size of mmapped area
     records: ManuallyDrop<Vec<AccessLogEntry>>,
 }
 
@@ -734,8 +736,8 @@ mod tests {
         let mut trace: Vec<AccessLogEntry> = vec![Default::default(); 4];
         let log_path = path.to_str().unwrap().to_owned() + BLOB_ACCESSED_SUFFIX;
         let mut log_file = File::open(&log_path).unwrap();
-        let mut buf = unsafe { std::slice::from_raw_parts_mut(trace.as_mut_ptr() as *mut u8, 64) };
-        assert_eq!(log_file.read(&mut buf).unwrap(), 32);
+        let buf = unsafe { std::slice::from_raw_parts_mut(trace.as_mut_ptr() as *mut u8, 64) };
+        assert_eq!(log_file.read(buf).unwrap(), 32);
 
         assert_eq!(trace[0].0, 0x0);
         assert_eq!(trace[0].1, 0x1000);
diff --git a/storage/src/backend/mod.rs b/storage/src/backend/mod.rs
index 47886afc3a1..3df4cd6b438 100644
--- a/storage/src/backend/mod.rs
+++ b/storage/src/backend/mod.rs
@@ -18,7 +18,7 @@ use std::sync::Arc;
 use fuse_backend_rs::transport::FileVolatileSlice;
 use nydus_utils::metrics::{BackendMetrics, ERROR_HOLDER};
 
-use crate::utils::copyv;
+use crate::utils::{alloc_buf, copyv};
 use crate::StorageError;
 
 #[cfg(any(feature = "backend-oss", feature = "backend-registry"))]
@@ -188,8 +188,7 @@ pub trait BlobReader: Send + Sync {
             // Use std::alloc to avoid zeroing the allocated buffer.
             let size = bufs.iter().fold(0usize, move |size, s| size + s.len());
             let size = std::cmp::min(size, max_size);
-            let mut data = Vec::with_capacity(size);
-            unsafe { data.set_len(size) };
+            let mut data = alloc_buf(size);
 
             let result = self.read(&mut data, offset)?;
             copyv(&[&data], bufs, 0, result, 0, 0)
@@ -253,7 +252,7 @@ mod tests {
         assert_eq!(config.connect_timeout, 5);
         assert_eq!(config.retry_limit, 0);
         assert_eq!(config.proxy.check_interval, 5);
-        assert_eq!(config.proxy.fallback, true);
+        assert!(config.proxy.fallback);
         assert_eq!(config.proxy.ping_url, "");
         assert_eq!(config.proxy.url, "");
     }
diff --git a/storage/src/backend/oss.rs b/storage/src/backend/oss.rs
index e1a0c627611..9df29e06d17 100644
--- a/storage/src/backend/oss.rs
+++ b/storage/src/backend/oss.rs
@@ -233,6 +233,7 @@ pub struct Oss {
     connection: Arc<Connection>,
     state: Arc<OssState>,
     metrics: Option<Arc<BackendMetrics>>,
+    #[allow(unused)]
     id: Option<String>,
 }
 
@@ -336,7 +337,7 @@ mod tests {
     #[test]
     fn test_oss_new() {
         let json_str = "{\"access_key_id\":\"key\",\"access_key_secret\":\"secret\",\"bucket_name\":\"images\",\"endpoint\":\"/oss\",\"object_prefix\":\"nydus\",\"scheme\":\"\",\"proxy\":{\"url\":\"\",\"ping_url\":\"\",\"fallback\":true,\"check_interval\":5},\"timeout\":5,\"connect_timeout\":5,\"retry_limit\":5}";
-        let json: Value = serde_json::from_str(&json_str).unwrap();
+        let json: Value = serde_json::from_str(json_str).unwrap();
         let oss = Oss::new(json, Some("test-image")).unwrap();
 
         oss.metrics();
diff --git a/storage/src/backend/registry.rs b/storage/src/backend/registry.rs
index 942065a6c59..c4163bc6b0f 100644
--- a/storage/src/backend/registry.rs
+++ b/storage/src/backend/registry.rs
@@ -125,6 +125,7 @@ struct TokenResponse {
 
 #[derive(Debug)]
 struct BasicAuth {
+    #[allow(unused)]
     realm: String,
 }
 
diff --git a/storage/src/cache/cachedfile.rs b/storage/src/cache/cachedfile.rs
index 681cca1f0ef..c3931e29e16 100644
--- a/storage/src/cache/cachedfile.rs
+++ b/storage/src/cache/cachedfile.rs
@@ -336,7 +336,7 @@ impl BlobObject for FileCacheEntry {
             }
         }
 
-        self.do_fetch_chunks(&chunks)
+        self.do_fetch_chunks(chunks)
     }
 }
 
diff --git a/storage/src/cache/filecache/mod.rs b/storage/src/cache/filecache/mod.rs
index 7e429569c42..37d1aeecd34 100644
--- a/storage/src/cache/filecache/mod.rs
+++ b/storage/src/cache/filecache/mod.rs
@@ -122,7 +122,7 @@ impl FileCacheMgr {
         }
 
         let entry = FileCacheEntry::new_file_cache(
-            &self,
+            self,
             blob.clone(),
             self.prefetch_config.clone(),
             self.runtime.clone(),
@@ -339,7 +339,7 @@ pub mod blob_cache_tests {
         );
 
         let mut blob_config: FileCacheConfig = serde_json::from_str(&s).unwrap();
-        assert_eq!(blob_config.disable_indexed_map, false);
+        assert!(!blob_config.disable_indexed_map);
         assert_eq!(blob_config.work_dir, dir.to_str().unwrap());
         /*
         assert_eq!(blob_config.get_work_dir().unwrap(), dir.to_str().unwrap());
diff --git a/storage/src/cache/state/blob_state_map.rs b/storage/src/cache/state/blob_state_map.rs
index 1153ea0e2a0..7117ca3d065 100644
--- a/storage/src/cache/state/blob_state_map.rs
+++ b/storage/src/cache/state/blob_state_map.rs
@@ -530,12 +530,9 @@ pub(crate) mod tests {
                 .unwrap();
         }
         for idx in 0..chunk_count {
-            assert_eq!(
-                chunk_map
-                    .check_ready_and_mark_pending(chunks[idx as usize].as_ref())
-                    .unwrap(),
-                true
-            );
+            assert!(chunk_map
+                .check_ready_and_mark_pending(chunks[idx as usize].as_ref())
+                .unwrap(),);
         }
     }
 
@@ -606,34 +603,25 @@ pub(crate) mod tests {
         index_map
             .set_ready_and_clear_pending(chunk_1.as_ref())
             .unwrap();
-        assert_eq!(
-            index_map
-                .check_ready_and_mark_pending(chunk_1.as_ref())
-                .unwrap(),
-            true
-        );
+        assert!(index_map
+            .check_ready_and_mark_pending(chunk_1.as_ref())
+            .unwrap(),);
         assert_eq!(index_map.inflight_tracer.lock().unwrap().len(), 1);
 
         index_map.clear_pending(chunk_2.as_ref());
         assert_eq!(index_map.inflight_tracer.lock().unwrap().len(), 0);
-        assert_eq!(
-            index_map
-                .check_ready_and_mark_pending(chunk_2.as_ref())
-                .unwrap(),
-            false
-        );
+        assert!(!index_map
+            .check_ready_and_mark_pending(chunk_2.as_ref())
+            .unwrap(),);
         assert_eq!(index_map.inflight_tracer.lock().unwrap().len(), 1);
         index_map.clear_pending(chunk_2.as_ref());
         assert_eq!(index_map.inflight_tracer.lock().unwrap().len(), 0);
         index_map
             .set_ready_and_clear_pending(chunk_2.as_ref())
             .unwrap();
-        assert_eq!(
-            index_map
-                .check_ready_and_mark_pending(chunk_2.as_ref())
-                .unwrap(),
-            true
-        );
+        assert!(index_map
+            .check_ready_and_mark_pending(chunk_2.as_ref())
+            .unwrap(),);
         assert_eq!(index_map.inflight_tracer.lock().unwrap().len(), 0);
 
         // digested ChunkMap
@@ -655,19 +643,13 @@ pub(crate) mod tests {
         digest_map
             .set_ready_and_clear_pending(chunk_1.as_ref())
             .unwrap();
-        assert_eq!(
-            digest_map
-                .check_ready_and_mark_pending(chunk_1.as_ref())
-                .unwrap(),
-            true
-        );
+        assert!(digest_map
+            .check_ready_and_mark_pending(chunk_1.as_ref())
+            .unwrap(),);
         digest_map.clear_pending(chunk_2.as_ref());
-        assert_eq!(
-            digest_map
-                .check_ready_and_mark_pending(chunk_2.as_ref())
-                .unwrap(),
-            false
-        );
+        assert!(!digest_map
+            .check_ready_and_mark_pending(chunk_2.as_ref())
+            .unwrap(),);
         digest_map.clear_pending(chunk_2.as_ref());
         assert_eq!(digest_map.inflight_tracer.lock().unwrap().len(), 0);
     }
@@ -685,12 +667,10 @@ pub(crate) mod tests {
             c
         });
 
-        assert_eq!(
-            map.as_ref()
-                .check_ready_and_mark_pending(chunk_4.as_ref())
-                .unwrap(),
-            false
-        );
+        assert!(!map
+            .as_ref()
+            .check_ready_and_mark_pending(chunk_4.as_ref())
+            .unwrap(),);
         let map_cloned = map.clone();
         assert_eq!(map.inflight_tracer.lock().unwrap().len(), 1);
 
@@ -701,7 +681,7 @@ pub(crate) mod tests {
                     let ready = map_cloned
                         .check_ready_and_mark_pending(chunk_4_cloned.as_ref())
                         .unwrap();
-                    assert_eq!(ready, true);
+                    assert!(ready);
                 }
             })
             .unwrap();
@@ -714,7 +694,7 @@ pub(crate) mod tests {
                     let ready = map_cloned_2
                         .check_ready_and_mark_pending(chunk_4_cloned_2.as_ref())
                         .unwrap();
-                    assert_eq!(ready, true);
+                    assert!(ready);
                 }
             })
             .unwrap();
@@ -791,9 +771,9 @@ pub(crate) mod tests {
             IndexedChunkMap::new(tmp_file.as_path().to_str().unwrap(), 10, true).unwrap(),
         ));
 
-        assert_eq!(map.is_range_all_ready(), false);
-        assert_eq!(map.is_range_ready(0, 1).unwrap(), false);
-        assert_eq!(map.is_range_ready(9, 1).unwrap(), false);
+        assert!(!map.is_range_all_ready());
+        assert!(!map.is_range_ready(0, 1).unwrap());
+        assert!(!map.is_range_ready(9, 1).unwrap());
         assert!(map.is_range_ready(10, 1).is_err());
         assert_eq!(
             map.check_range_ready_and_mark_pending(0, 2).unwrap(),
@@ -808,8 +788,8 @@ pub(crate) mod tests {
         );
         map.set_range_ready_and_clear_pending(2, 1).unwrap();
         map.set_range_ready_and_clear_pending(3, 7).unwrap();
-        assert_eq!(map.is_range_ready(0, 1).unwrap(), true);
-        assert_eq!(map.is_range_ready(9, 1).unwrap(), true);
-        assert_eq!(map.is_range_all_ready(), true);
+        assert!(map.is_range_ready(0, 1).unwrap());
+        assert!(map.is_range_ready(9, 1).unwrap());
+        assert!(map.is_range_all_ready());
     }
 }
diff --git a/storage/src/cache/state/indexed_chunk_map.rs b/storage/src/cache/state/indexed_chunk_map.rs
index c168d8f6035..379c9ceca86 100644
--- a/storage/src/cache/state/indexed_chunk_map.rs
+++ b/storage/src/cache/state/indexed_chunk_map.rs
@@ -211,10 +211,10 @@ mod tests {
         assert_eq!(map.map.not_ready_count.load(Ordering::Acquire), 1);
         assert_eq!(map.map.count, 1);
         assert_eq!(map.map.size, 0x1001);
-        assert_eq!(map.is_range_all_ready(), false);
-        assert_eq!(map.is_ready(chunk.as_base()).unwrap(), false);
+        assert!(!map.is_range_all_ready());
+        assert!(!map.is_ready(chunk.as_base()).unwrap());
         map.set_ready_and_clear_pending(chunk.as_base()).unwrap();
-        assert_eq!(map.is_ready(chunk.as_base()).unwrap(), true);
+        assert!(map.is_ready(chunk.as_base()).unwrap());
     }
 
     #[test]
@@ -247,10 +247,10 @@ mod tests {
         assert_eq!(map.map.not_ready_count.load(Ordering::Acquire), 1);
         assert_eq!(map.map.count, 1);
         assert_eq!(map.map.size, 0x1001);
-        assert_eq!(map.is_range_all_ready(), false);
-        assert_eq!(map.is_ready(chunk.as_base()).unwrap(), false);
+        assert!(!map.is_range_all_ready());
+        assert!(!map.is_ready(chunk.as_base()).unwrap());
         map.set_ready_and_clear_pending(chunk.as_base()).unwrap();
-        assert_eq!(map.is_ready(chunk.as_base()).unwrap(), true);
+        assert!(map.is_ready(chunk.as_base()).unwrap());
     }
 
     #[test]
@@ -290,12 +290,12 @@ mod tests {
         assert_eq!(chunk.id(), 0);
 
         let map = IndexedChunkMap::new(&blob_path, 1, true).unwrap();
-        assert_eq!(map.is_range_all_ready(), true);
+        assert!(map.is_range_all_ready());
         assert_eq!(map.map.count, 1);
         assert_eq!(map.map.size, 0x1001);
-        assert_eq!(map.is_ready(chunk.as_base()).unwrap(), true);
+        assert!(map.is_ready(chunk.as_base()).unwrap());
         map.set_ready_and_clear_pending(chunk.as_base()).unwrap();
-        assert_eq!(map.is_ready(chunk.as_base()).unwrap(), true);
+        assert!(map.is_ready(chunk.as_base()).unwrap());
     }
 
     #[test]
@@ -338,9 +338,9 @@ mod tests {
         assert_eq!(map.map.not_ready_count.load(Ordering::Acquire), 1);
         assert_eq!(map.map.count, 1);
         assert_eq!(map.map.size, 0x1001);
-        assert_eq!(map.is_range_all_ready(), false);
-        assert_eq!(map.is_ready(chunk.as_base()).unwrap(), false);
+        assert!(!map.is_range_all_ready());
+        assert!(!map.is_ready(chunk.as_base()).unwrap());
         map.set_ready_and_clear_pending(chunk.as_base()).unwrap();
-        assert_eq!(map.is_ready(chunk.as_base()).unwrap(), true);
+        assert!(map.is_ready(chunk.as_base()).unwrap());
     }
 }
diff --git a/storage/src/cache/worker.rs b/storage/src/cache/worker.rs
index 25931db3490..fc464aac1b2 100644
--- a/storage/src/cache/worker.rs
+++ b/storage/src/cache/worker.rs
@@ -24,6 +24,7 @@ use fuse_backend_rs::transport::FileVolatileSlice;
 /// Configuration information for asynchronous workers.
 pub(crate) struct AsyncPrefetchConfig {
     /// Whether or not to eneable prefetch.
+    #[allow(unused)]
     pub enable: bool,
     /// Number of working threads.
     pub threads_count: usize,
diff --git a/storage/src/device.rs b/storage/src/device.rs
index 575321ad138..71b9fb55004 100644
--- a/storage/src/device.rs
+++ b/storage/src/device.rs
@@ -1079,7 +1079,7 @@ impl FileReadWriteVolatile for BlobDeviceIoVec<'_> {
         if let Some(index) = self.iovec.get_target_blob_index() {
             let blobs = &self.dev.blobs.load();
             if (index as usize) < blobs.len() {
-                return blobs[index as usize].read(&mut self.iovec, buffers);
+                return blobs[index as usize].read(self.iovec, buffers);
             }
         }
 
@@ -1153,8 +1153,8 @@ mod tests {
         assert_eq!(iochunk.compress_size(), 0x100);
         assert_eq!(iochunk.uncompress_offset(), 0x2000);
         assert_eq!(iochunk.uncompress_size(), 0x200);
-        assert_eq!(iochunk.is_compressed(), false);
-        assert_eq!(iochunk.is_hole(), false);
+        assert!(!iochunk.is_compressed());
+        assert!(!iochunk.is_hole());
     }
 
     #[test]
diff --git a/storage/src/meta/mod.rs b/storage/src/meta/mod.rs
index f619f705e6b..c8cef54e111 100644
--- a/storage/src/meta/mod.rs
+++ b/storage/src/meta/mod.rs
@@ -14,6 +14,7 @@
 //! `blobid.blob.meata`. Together with the chunk map file `blobid.chunkmap`, they may be used to
 //! optimize the communication between blob manager and blob manager clients such as virtiofsd.
 
+use std::any::Any;
 use std::fs::OpenOptions;
 use std::io::Result;
 use std::mem::{size_of, ManuallyDrop};
@@ -26,7 +27,7 @@ use nydus_utils::digest::RafsDigest;
 
 use crate::backend::BlobReader;
 use crate::device::{BlobChunkInfo, BlobInfo, BlobIoChunk};
-use std::any::Any;
+use crate::utils::alloc_buf;
 
 const BLOB_METADATA_MAX_CHUNKS: u32 = 0xf_ffff;
 const BLOB_METADATA_MAX_SIZE: u64 = 0x100_0000u64;
@@ -586,9 +587,7 @@ impl BlobMetaInfo {
             }
         } else {
             let compressed_size = blob_info.meta_ci_compressed_size();
-            let mut buf = Vec::with_capacity(compressed_size as usize);
-            unsafe { buf.set_len(compressed_size as usize) };
-
+            let mut buf = alloc_buf(compressed_size as usize);
             let size = reader
                 .read(&mut buf, blob_info.meta_ci_offset())
                 .map_err(|e| eio!(format!("failed to read metadata from backend, {:?}", e)))?;
@@ -820,11 +819,11 @@ mod tests {
         assert_eq!(chunk.uncompressed_size(), 0x100);
         assert_eq!(chunk.uncompressed_end(), 0x2100);
         assert_eq!(chunk.aligned_uncompressed_end(), 0x3000);
-        assert_eq!(chunk.is_compressed(), false);
+        assert!(!chunk.is_compressed());
 
         chunk.set_uncompressed_size(0x200);
         assert_eq!(chunk.uncompressed_size(), 0x200);
-        assert_eq!(chunk.is_compressed(), true);
+        assert!(chunk.is_compressed());
     }
 
     #[test]
@@ -871,8 +870,8 @@ mod tests {
         assert_eq!(vec[0].compress_size(), 0x1000);
         assert_eq!(vec[0].uncompress_offset(), 0);
         assert_eq!(vec[0].uncompress_size(), 0x1001);
-        assert_eq!(vec[0].is_compressed(), true);
-        assert_eq!(vec[0].is_hole(), false);
+        assert!(vec[0].is_compressed());
+        assert!(!vec[0].is_hole());
 
         let vec = info.get_chunks_uncompressed(0x0, 0x4000, 0).unwrap();
         assert_eq!(vec.len(), 2);
@@ -882,8 +881,8 @@ mod tests {
         assert_eq!(vec[1].compress_size(), 0x2000);
         assert_eq!(vec[1].uncompress_offset(), 0x2000);
         assert_eq!(vec[1].uncompress_size(), 0x2000);
-        assert_eq!(vec[1].is_compressed(), false);
-        assert_eq!(vec[1].is_hole(), false);
+        assert!(!vec[1].is_compressed());
+        assert!(!vec[1].is_hole());
 
         let vec = info.get_chunks_uncompressed(0x0, 0x4001, 0).unwrap();
         assert_eq!(vec.len(), 3);
@@ -980,7 +979,7 @@ mod tests {
         };
 
         let pos = 0;
-        w.write_all(&data).unwrap();
+        w.write_all(data).unwrap();
 
         let mut blob_info = BlobInfo::new(
             0,
@@ -999,8 +998,7 @@ mod tests {
             compress::Algorithm::None as u32,
         );
 
-        let mut buffer = Vec::with_capacity(data.len());
-        unsafe { buffer.set_len(data.len()) };
+        let mut buffer = alloc_buf(data.len());
         let reader: Arc<dyn BlobReader> = Arc::new(DummyBlobReader {
             metrics: BackendMetrics::new("dummy", "localfs"),
             file: r,
@@ -1043,7 +1041,7 @@ mod tests {
         };
 
         let (buf, compressed) = compress::compress(data, compress::Algorithm::Lz4Block).unwrap();
-        assert_eq!(compressed, true);
+        assert!(compressed);
 
         let pos = 0;
         w.write_all(&buf).unwrap();
@@ -1067,8 +1065,7 @@ mod tests {
             compress::Algorithm::Lz4Block as u32,
         );
 
-        let mut buffer = Vec::with_capacity(uncompressed_size);
-        unsafe { buffer.set_len(uncompressed_size) };
+        let mut buffer = alloc_buf(uncompressed_size);
         let reader: Arc<dyn BlobReader> = Arc::new(DummyBlobReader {
             metrics: BackendMetrics::new("dummy", "localfs"),
             file: r,
diff --git a/storage/src/remote/connection.rs b/storage/src/remote/connection.rs
index 60215c83d11..65d0d008bb0 100644
--- a/storage/src/remote/connection.rs
+++ b/storage/src/remote/connection.rs
@@ -501,7 +501,7 @@ impl Endpoint {
                     .take(n)
                     .map(|fd| {
                         // Safe because we have the ownership of `fd`.
-                        unsafe { File::from_raw_fd(*fd) }
+                        File::from_raw_fd(*fd)
                     })
                     .collect();
                 Some(files)
diff --git a/storage/src/remote/message.rs b/storage/src/remote/message.rs
index b1d304de26f..9a47a42f120 100644
--- a/storage/src/remote/message.rs
+++ b/storage/src/remote/message.rs
@@ -378,22 +378,22 @@ mod tests {
 
         assert_eq!(hdr.get_version(), 0x1);
 
-        assert_eq!(hdr.is_reply(), false);
+        assert!(!hdr.is_reply());
         hdr.set_reply(true);
-        assert_eq!(hdr.is_reply(), true);
+        assert!(hdr.is_reply());
         hdr.set_reply(false);
 
-        assert_eq!(hdr.is_need_reply(), false);
+        assert!(!hdr.is_need_reply());
         hdr.set_need_reply(true);
-        assert_eq!(hdr.is_need_reply(), true);
+        assert!(hdr.is_need_reply());
         hdr.set_need_reply(false);
 
         assert_eq!(hdr.get_size(), 0x100);
         hdr.set_size(0x200);
         assert_eq!(hdr.get_size(), 0x200);
 
-        assert_eq!(hdr.is_need_reply(), false);
-        assert_eq!(hdr.is_reply(), false);
+        assert!(!hdr.is_need_reply());
+        assert!(!hdr.is_reply());
         assert_eq!(hdr.get_version(), 0x1);
 
         // Check message length
diff --git a/storage/src/remote/server.rs b/storage/src/remote/server.rs
index 395fd7d18dd..8d1447f6376 100644
--- a/storage/src/remote/server.rs
+++ b/storage/src/remote/server.rs
@@ -96,7 +96,7 @@ impl ClientConnection {
         }
 
         hdr.set_reply(true);
-        guard.send_header(&hdr, None).map_err(|_e| eio!())
+        guard.send_header(hdr, None).map_err(|_e| eio!())
     }
 
     fn handle_get_blob(&self, hdr: &mut MsgHeader, mut guard: MutexGuard<Endpoint>) -> Result<()> {
@@ -121,7 +121,7 @@ impl ClientConnection {
 
         let mut guard = self.lock_conn();
         hdr.set_reply(true);
-        guard.send_message(&hdr, &reply, None).map_err(|_e| eio!())
+        guard.send_message(hdr, &reply, None).map_err(|_e| eio!())
     }
 
     fn handle_fetch_range(
@@ -148,7 +148,7 @@ impl ClientConnection {
 
         let mut guard = self.lock_conn();
         hdr.set_reply(true);
-        guard.send_message(&hdr, &reply, None).map_err(|_e| eio!())
+        guard.send_message(hdr, &reply, None).map_err(|_e| eio!())
     }
 
     fn lock_conn(&self) -> MutexGuard<Endpoint> {
diff --git a/storage/src/test.rs b/storage/src/test.rs
index ed9bd49b951..58a4089cb70 100644
--- a/storage/src/test.rs
+++ b/storage/src/test.rs
@@ -78,6 +78,7 @@ pub(crate) struct MockChunkInfo {
     pub uncompress_offset: u64,
     pub file_offset: u64,
     pub index: u32,
+    #[allow(unused)]
     pub reserved: u32,
 }
 
diff --git a/storage/src/utils.rs b/storage/src/utils.rs
index f2fc9308c5b..4b42b66465e 100644
--- a/storage/src/utils.rs
+++ b/storage/src/utils.rs
@@ -3,7 +3,6 @@
 // SPDX-License-Identifier: Apache-2.0
 
 //! Utility helpers to supprt the storage subsystem.
-use std::alloc::{alloc, Layout};
 use std::cmp::{self, min};
 use std::io::{ErrorKind, Result};
 use std::os::unix::io::RawFd;
@@ -223,12 +222,13 @@ pub fn readahead(fd: libc::c_int, mut offset: u64, end: u64) {
 
 /// A customized buf allocator that avoids zeroing
 pub fn alloc_buf(size: usize) -> Vec<u8> {
-    debug_assert!(size < isize::MAX as usize);
-    let layout = Layout::from_size_align(size, 0x1000)
-        .unwrap()
-        .pad_to_align();
-    let ptr = unsafe { alloc(layout) };
-    unsafe { Vec::from_raw_parts(ptr, size, layout.size()) }
+    let mut buf = Vec::with_capacity(size);
+    // It's ok to provide uninitialized data buffer, the caller should take care of it.
+    #[allow(clippy::uninit_vec)]
+    unsafe {
+        buf.set_len(size)
+    };
+    buf
 }
 
 /// Check hash of data matches provided one
diff --git a/tests/builder.rs b/tests/builder.rs
index 8b1b55ed3b2..efd58b1b4fc 100644
--- a/tests/builder.rs
+++ b/tests/builder.rs
@@ -143,7 +143,7 @@ impl<'a> Builder<'a> {
             &dir.join("sub/sub-root-large-copy-hardlink-1"),
         );
         self.create_symlink(
-            &Path::new("../root-large").to_path_buf(),
+            Path::new("../root-large"),
             &dir.join("sub/sub-root-large-symlink"),
         );
 
diff --git a/tests/diff.rs b/tests/diff.rs
index d9338ca05f2..f743f80b199 100644
--- a/tests/diff.rs
+++ b/tests/diff.rs
@@ -2,7 +2,6 @@
 //
 // SPDX-License-Identifier: Apache-2.0
 
-use std::array::IntoIter;
 use std::collections::HashMap;
 use std::fs::{self, File, OpenOptions};
 use std::io::prelude::*;
@@ -76,7 +75,7 @@ fn create_dir(path: &Path) -> PathBuf {
 fn create_file(path: &Path, chunks: &[Vec<u8>]) {
     let mut file = File::create(path).unwrap();
     for chunk in chunks {
-        file.write_all(&chunk).unwrap();
+        file.write_all(chunk).unwrap();
     }
 }
 
@@ -227,7 +226,7 @@ fn integration_test_diff_build_with_chunk_dict() {
         vec![&layer_dir_1, &layer_dir_2, &layer_dir_3, &layer_dir_4],
         &snapshot_dir_4,
     ));
-    let expected_chunk_dict_bootstrap = IntoIter::new([
+    let expected_chunk_dict_bootstrap = [
         (PathBuf::from("/"), vec![]),
         (
             PathBuf::from("/file-1"),
@@ -292,7 +291,9 @@ fn integration_test_diff_build_with_chunk_dict() {
             )],
         ),
         (PathBuf::from("/file-7"), vec![]),
-    ])
+    ]
+    .iter()
+    .cloned()
     .collect();
 
     // Diff build to a chunk-dict bootstrap
@@ -388,7 +389,7 @@ fn integration_test_diff_build_with_chunk_dict() {
         vec![&layer_dir_5, &layer_dir_6],
         &snapshot_dir_6,
     ));
-    let expected_bootstrap = IntoIter::new([
+    let expected_bootstrap = [
         (PathBuf::from("/"), vec![]),
         (
             PathBuf::from("/file-8"),
@@ -435,7 +436,9 @@ fn integration_test_diff_build_with_chunk_dict() {
                 ),
             ],
         ),
-    ])
+    ]
+    .iter()
+    .cloned()
     .collect();
 
     // Diff build based on a chunk dict bootstrap
@@ -544,7 +547,7 @@ fn integration_test_diff_build_with_chunk_dict() {
         &snapshot_dir_8,
     ));
 
-    let expected_bootstrap = IntoIter::new([
+    let expected_bootstrap = [
         (PathBuf::from("/"), vec![]),
         (
             PathBuf::from("/file-1"),
@@ -639,7 +642,9 @@ fn integration_test_diff_build_with_chunk_dict() {
                 ),
             ],
         ),
-    ])
+    ]
+    .iter()
+    .cloned()
     .collect();
 
     // Diff build based on a build-cache + chunk-dict bootstrap