Rollup of 5 pull requests#91841

Merged

bors merged 13 commits intorust-lang:masterfrom

matthiaskrgr:rollup-zlhsg5a

Dec 13, 2021

Commits on Nov 20, 2021

Commits on Nov 21, 2021

Reborrow mut slice instead of converting it with `as_ref`

rhysd
and
camelid
authored

Commits on Dec 4, 2021

Update stabilization version of try_from_mut_slice_to_array
m-ou-se
authored

Commits on Dec 10, 2021

BTree: improve public descriptions and comments
ssomers
committed

Commits on Dec 12, 2021