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Rollup of 8 pull requests - #90434

Merged

bors merged 19 commits into

rust-lang:masterfrom

matthiaskrgr:rollup-xbn393a

Oct 31, 2021

Commits on Oct 1, 2021
- Add paragraph to ControlFlow docs to menion it works with the ? operator (#88715)
  chrismit3s
  committed
  081fe30
Commits on Oct 2, 2021
- Fix typo and change a word in ControlFlow docs
  
  chrismit3s
  and
  r00ster
  authored
  825cd81
Commits on Oct 8, 2021
- Stabilize `is_symlink()` for `Metadata` and `Path`
  maxwase
  committed
  55663a7
Commits on Oct 12, 2021
- Update library/std/src/path.rs
  
  maxwase
  and
  yaahc
  authored
  36e050b
- Merge branch 'master' into is-symlink-stabilization
  maxwase
  authored
  3e0360f
- Add #[must_use] to Rc::downgrade
  jkugelman
  committed
  5bb99bb
Commits on Oct 13, 2021
- Add #[must_use] to expensive computations
  jkugelman
  committed
  21f4677
Commits on Oct 20, 2021
- Stabilize `option_result_unwrap_unchecked`
  ojeda
  committed
  63d7882
Commits on Oct 30, 2021
- Add #[must_use] to remaining core functions
  jkugelman
  committed
  68b0d86
- Add #[must_use] to mem/ptr functions
  jkugelman
  committed
  887503a
Commits on Oct 31, 2021