Rollup of 11 pull requests#88854

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GuillaumeGomez wants to merge 42 commits into

rust-lang:masterfrom

GuillaumeGomez:rollup-xr98ra7

Commits on Aug 10, 2021

Reword description of automatic impls of `Unsize`.
kpreid
committed

Commits on Aug 18, 2021

Fix non-capturing closure return type coercion
FabianWolff
committed

Commits on Aug 21, 2021

Improve error message when _ is used for in/inout asm operands
Amanieu
committed

Commits on Aug 31, 2021

Add explanatory comment
FabianWolff
committed

Commits on Sep 5, 2021

Commits on Sep 7, 2021

Simplify std::os module reexports to fix rustdoc linking issues
GuillaumeGomez
committed

Commits on Sep 9, 2021

Commits on Sep 11, 2021