Update cargo

[ehuss]

11 commits in e02974078a692d7484f510eaec0e88d1b6cc0203..e57bd02999c9f40d52116e0beca7d1dccb0643de
2020-02-18 15:24:43 +0000 to 2020-02-21 20:20:10 +0000

• fix most remaining clippy findings (mostly redundant imports) (fix most remaining clippy findings (mostly redundant imports) cargo#7912)
• Add -Zfeatures tracking issues. (Add -Zfeatures tracking issues. cargo#7917)
• Use rust-lang/rust linkchecker on CI. (Use rust-lang/rust linkchecker on CI. cargo#7913)
• Clean up code mostly based on clippy suggestions (Clean up code mostly based on clippy suggestions cargo#7911)
• Add an option to include crate versions to the generated docs (Add an option to include crate versions to the generated docs cargo#7903)
• Better support for license-file. (Better support for license-file. cargo#7905)
• Add new feature resolver. (Add new feature resolver. cargo#7820)
• Switch azure to macOS 10.15. (Switch azure to macOS 10.15. cargo#7906)
• Modified the help information of cargo-rustc (Modified the help information of cargo-rustc cargo#7892)
• Update for nightly rustfmt. (Update for nightly rustfmt. cargo#7904)
• Support --config path_to_config.toml cli syntax. (Support --config path_to_config.toml cli syntax. cargo#7901)

[rust-highfive]

⚠️ Warning ⚠️

• These commits modify submodules.

[ehuss]

@bors r+ rollup

[bors]

📌 Commit 11530de has been approved by ehuss

[Dylan-DPC-zz]

@bors p=1 rollup=never

[bors]

⌛ Testing commit 11530de with merge 436494b...

[bors]

☀️ Test successful - checks-azure
Approved by: ehuss
Pushing 436494b to master...

[rust-highfive]

📣 Toolstate changed by #69358!

Tested on commit 436494b.
Direct link to PR: #69358

💔 rls on windows: test-pass → build-fail (cc @Xanewok, @rust-lang/infra).
💔 rls on linux: test-pass → build-fail (cc @Xanewok, @rust-lang/infra).