Rollup of 7 pull requests#92587

Merged

bors merged 14 commits intorust-lang:masterfrom

matthiaskrgr:rollup-qnwa8qx

Jan 5, 2022

Commits on Dec 19, 2021

Derive src pointers in sort drop guards from &T
saethlin
committed

Commits on Dec 29, 2021

Fix a minor mistake in `String::try_reserve_exact` examples
SpriteOvO
committed

Commits on Dec 30, 2021

Add negative `impl` for `Ord`, `PartialOrd` on `LocalDefId`
pierwill
committed

Commits on Jan 4, 2022

Stabilize `result_cloned` and `result_copied`
ksqsf
committed

Commits on Jan 5, 2022