Rollup of 7 pull requests#91656

Merged

bors merged 17 commits intorust-lang:masterfrom

matthiaskrgr:rollup-lk96y6d

Dec 8, 2021

Commits on Nov 3, 2021

Update certificates in some Ubuntu 16 images.
ehuss
committed

Commits on Nov 26, 2021

Print a suggestion when comparing references to primitive types in constant functions
FabianWolff
committed

Commits on Dec 2, 2021

Emphasise that an OsStr[ing] is not necessarily a platform string
ChrisDenton
committed

Commits on Dec 4, 2021

Do not add `;` to expected tokens list when it's wrong
notriddle
committed

Commits on Dec 5, 2021

Remove unnecessary FIXME (answered by Oli)
ecstatic-morse
committed

Commits on Dec 6, 2021

Commits on Dec 7, 2021

Future compatibility warning on cfg_attr on crate_type and crate_name

bjorn3
authored and
Mark-Simulacrum
committed

Commits on Dec 8, 2021