Better suggestions when user tries to collect into an unsized `[_]`#91443

Merged

bors merged 2 commits intorust-lang:masterfrom

compiler-errors:bad_collect_into_slice

Feb 10, 2022

Commits on Feb 9, 2022

Allow substitutions in `rustc_on_unimplemented` predicate
compiler-errors
committed
Suggest collecting into `Vec<_>` when collecting into `[_]`
compiler-errors
committed