Rollup of 11 pull requests#87095

Merged

bors merged 30 commits intorust-lang:masterfrom

JohnTitor:rollup-mn7ggy2

Jul 13, 2021

Commits on Jun 16, 2021

Split MaybeUninit::write into new feature gate and stabilize it
est31
committed

Commits on Jun 24, 2021

Commits on Jul 2, 2021

Remove unstable `Cursor::remaining`
soerenmeier
committed

Commits on Jul 3, 2021

stdio_locked: add tracking issue
tlyu
committed

Commits on Jul 5, 2021

rustdoc: Remove unused Clean impls
jyn514
committed

Commits on Jul 9, 2021

Fix rust-analyzer install when not available.
ehuss
committed

Commits on Jul 10, 2021

Fix display for external trait implementors
GuillaumeGomez
committed

Commits on Jul 11, 2021

Commits on Jul 12, 2021