Rollup of 8 pull requests#99925

Merged

bors merged 28 commits intorust-lang:masterfrom

JohnTitor:rollup-4bt9ou3

Jul 30, 2022

Commits on Jul 20, 2022

break out scopes when let-else fails to match
dingxiangfei2009
committed

Commits on Jul 21, 2022

provide a test for #93951
dingxiangfei2009
committed

Commits on Jul 22, 2022

include a demo that more programs can be compiled
dingxiangfei2009
committed

Commits on Jul 24, 2022

suggest dereferencing index when trying to use a reference of usize as index
TaKO8Ki
committed

Commits on Jul 28, 2022

Commits on Jul 29, 2022