Rollup of 8 pull requests#82929

Merged

bors merged 18 commits intorust-lang:masterfrom

m-ou-se:rollup-7fwrewh

Mar 9, 2021

Commits on Feb 8, 2021

Added #[repr(transparent)] to core::cmp::Reverse
imbrem
committed

Commits on Feb 21, 2021

Improve sift_down performance in BinaryHeap
hanmertens
committed

Commits on Mar 5, 2021

Commits on Mar 6, 2021

Change x64 size checks to not apply to x32.
hvdijk
committed

Commits on Mar 7, 2021

Update Cargo
Aaron1011
committed

Commits on Mar 8, 2021

clippy: fix or-pattern in let binding
mark-i-m
committed

Commits on Mar 9, 2021