submodules: update cargo from 9d32b7b01 to 3c53211c3

Changes:
````
Update jobserver.
Update tar.
Emit report on error with Ztimings.
Do not run `formats_source` if `rustfmt` is not available
Fix rebuild_sub_package_then_while_package on HFS.
Remove likely brittle test.
Install rustfmt for testing in CI
Fix build-std collisions.
Fix BuildScriptOutput when a build script is run multiple times.
Fix required-features using renamed dependencies.
Fix using global options before an alias.
Update changelog for 1.42.
Bump to 0.44.0.
Log rustfmt output if it fails; also do not check that rustfmt exists
Update pretty_env_logger requirement from 0.3 to 0.4
Swap std::sync::mpsc channel with crossbeam_channel
Fix tests on Linux/MacOS
Fix typo.
Add tests
Deduplicate warnings about missing rustfmt
Log entry 2: first implementation
Refactor code
Stabilize config-profile.
Log entry 1
Format code
Remove tempdir after install
Keep existing package with git install
Use non-ephemeral workspace
Test that git install reads virtual manifest
Fix failing test
Search for root manifest with ephemeral workspaces
Support out-dir in build section of Cargo configuration file
````

Cargo.lock

@@ -281,7 +281,7 @@ dependencies = [
 
 [[package]]
 name = "cargo"
-version = "0.43.0"
+version = "0.44.0"
 dependencies = [
  "anyhow",
  "atty",
@@ -292,6 +292,7 @@ dependencies = [
  "clap",
  "core-foundation 0.7.0",
  "crates-io",
+ "crossbeam-channel 0.4.0",
  "crossbeam-utils 0.7.0",
  "crypto-hash",
  "curl",
@@ -729,6 +730,15 @@ dependencies = [
  "smallvec 0.6.10",
 ]
 
+[[package]]
+name = "crossbeam-channel"
+version = "0.4.0"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "acec9a3b0b3559f15aee4f90746c4e5e293b701c0f7d3925d24e01645267b68c"
+dependencies = [
+ "crossbeam-utils 0.7.0",
+]
+
 [[package]]
 name = "crossbeam-deque"
 version = "0.7.1"
@@ -1077,13 +1087,14 @@ checksum = "e88a8acf291dafb59c2d96e8f59828f3838bb1a70398823ade51a84de6a6deed"
 
 [[package]]
 name = "filetime"
-version = "0.2.4"
+version = "0.2.8"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "a2df5c1a8c4be27e7707789dc42ae65976e60b394afd293d1419ab915833e646"
+checksum = "1ff6d4dab0aa0c8e6346d46052e93b13a16cf847b54ed357087c35011048cc7d"
 dependencies = [
  "cfg-if",
  "libc",
  "redox_syscall",
+ "winapi 0.3.8",
 ]
 
 [[package]]
@@ -1541,7 +1552,7 @@ version = "0.4.10"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "0ec16832258409d571aaef8273f3c3cc5b060d784e159d1a0f3b0017308f84a7"
 dependencies = [
- "crossbeam-channel",
+ "crossbeam-channel 0.3.8",
  "globset",
  "lazy_static 1.4.0",
  "log",
@@ -2504,12 +2515,11 @@ dependencies = [
 
 [[package]]
 name = "pretty_env_logger"
-version = "0.3.0"
+version = "0.4.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "df8b3f4e0475def7d9c2e5de8e5a1306949849761e107b360d03e98eafaffd61"
+checksum = "926d36b9553851b8b0005f1275891b392ee4d2d833852c417ed025477350fb9d"
 dependencies = [
- "chrono",
- "env_logger 0.6.2",
+ "env_logger 0.7.1",
  "log",
 ]
 
@@ -2948,7 +2958,7 @@ dependencies = [
  "cargo",
  "cargo_metadata 0.8.0",
  "clippy_lints",
- "crossbeam-channel",
+ "crossbeam-channel 0.3.8",
  "difference",
  "env_logger 0.7.1",
  "futures",
@@ -4547,9 +4557,9 @@ dependencies = [
 
 [[package]]
 name = "tar"
-version = "0.4.20"
+version = "0.4.26"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "a303ba60a099fcd2aaa646b14d2724591a96a75283e4b7ed3d1a1658909d9ae2"
+checksum = "b3196bfbffbba3e57481b6ea32249fbaf590396a52505a2615adbb79d9d826d3"
 dependencies = [
  "filetime",
  "libc",

src/tools/cargo

@@ -1 +1 @@
-Subproject commit 9d32b7b01409024b165545c568b1525d86e2b7cb
+Subproject commit 3c53211c3d7fee4f430f170115af5baad17a3da9

src/tools/tidy/src/deps.rs

@@ -59,6 +59,7 @@ const EXCEPTIONS: &[&str] = &[
     "dunce",              // CC0-1.0 mdbook-linkcheck
     "codespan-reporting", // Apache-2.0 mdbook-linkcheck
     "codespan",           // Apache-2.0 mdbook-linkcheck
+    "crossbeam-channel",  // MIT/Apache-2.0 AND BSD-2-Clause, cargo
 ];
 
 /// Which crates to check against the whitelist?