Update cargo

[ehuss]

7 commits in f3e13226d6d17a2bc5f325303494b43a45f53b7f..e51522ab3db23b0d8f1de54eb1f0113924896331
2021-04-30 21:50:27 +0000 to 2021-05-07 21:29:52 +0000

• Add CARGO_TARGET_TMPDIR env var for integration tests & benches (Add CARGO_TARGET_TMPDIR env var for integration tests & benches cargo#9375)
• Bump to 0.55.0, update changelog (Bump to 0.55.0, update changelog cargo#9464)
• Some updates to the unstable documentation (Some updates to the unstable documentation cargo#9457)
• Add CARGO_PROFILE_<name>_SPLIT_DEBUGINFO to env docs. (Add CARGO_PROFILE_<name>_SPLIT_DEBUGINFO to env docs.  cargo#9456)
• Add report subcommand. (Add report subcommand. cargo#9438)
• Respect Cargo.toml [package.exclude] even not in a git repo. (Respect Cargo.toml [package.exclude] even not in a git repo. cargo#9186)
• Document the other crates in the codebase in the contrib guide. (Document the other crates in the codebase in the contrib guide. cargo#9439)

[rust-highfive]

⚠️ Warning ⚠️

• These commits modify submodules.

[ehuss]

@bors r+

[bors]

📌 Commit b0e49c7 has been approved by ehuss

[bors]

⌛ Testing commit b0e49c7 with merge 50e1dc1...

[bors]

☀️ Test successful - checks-actions
Approved by: ehuss
Pushing 50e1dc1 to master...