Rollup merge of #83219 - ehuss:update-cargo, r=ehuss

Rollup merge of #83219 - ehuss:update-cargo, r=ehuss

Update cargo

8 commits in 32da9eaa5de5be241cf8096ca6b749a157194f77..90691f2bfe9a50291a98983b1ed2feab51d5ca55
2021-03-13 01:18:40 +0000 to 2021-03-16 21:36:55 +0000
- Add report if `cargo fix --edition` changes features. (rust-lang/cargo#9268)
- Fix --feature pkg/feat for V1 resolver for non-member. (rust-lang/cargo#9275)
- Fix doc duplicate removal of root units. (rust-lang/cargo#9276)
- Add CLI help text for patch-in-config (rust-lang/cargo#9271)
- Document `-Zpatch-in-config` (rust-lang/cargo#9270)
- Support [patch] in .cargo/config files (rust-lang/cargo#9204)
- Add `--future-incompat-report` support to `cargo test` (rust-lang/cargo#9264)
- 🍱 Crop favicon (rust-lang/cargo#9262)