Rollup of 10 pull requests#80178

Closed

Dylan-DPC-zz wants to merge 23 commits intorust-lang:masterfrom

Dylan-DPC-zz:rollup-osd55qz

Commits on Oct 18, 2020

Stabilize or_insert_with_key
ChaiTRex
committed

Commits on Nov 29, 2020

passes: prohibit attrs on generic params
davidtwco
committed

Commits on Dec 1, 2020

Update rustc version that or_insert_with_key landed
ChaiTRex
committed

Commits on Dec 8, 2020

Improved documentation for HashMap/BTreeMap Entry's .or_insert_with_key method
ChaiTRex
committed
Removed spurious linebreak from new documentation
ChaiTRex
authored

Commits on Dec 16, 2020

Add `&mut` as an alias for 'reference' primitive
jyn514
committed

Commits on Dec 17, 2020

Commits on Dec 19, 2020