Auto merge of #90039 - ehuss:update-cargo, r=ehuss

Auto merge of #90039 - ehuss:update-cargo, r=ehuss

Update cargo

6 commits in c7957a74bdcf3b11e7154c1a9401735f23ebd484..7fbbf4e8f23e3c24b8afff541dcb17e53eb5ff88
2021-10-11 20:17:07 +0000 to 2021-10-19 02:16:48 +0000
- Make future-incompat-report output more user-friendly (rust-lang/cargo#9953)
- Fix fetching git repos after a force push. (rust-lang/cargo#9979)
- Add rustc-link-args to doctest build (rust-lang/cargo#9916)
- Add the start of a basic benchmarking suite. (rust-lang/cargo#9955)
- Use forms for issue templates. (rust-lang/cargo#9970)
- Add rust_metadata to SerializedPackage (rust-lang/cargo#9967)