Rollup of 10 pull requests - #77013

Merged

bors merged 21 commits into

rust-lang:masterfrom

RalfJung:rollup-84ut0xq

Sep 21, 2020

Commits on Sep 8, 2020

Add error explanation for E0755
GuillaumeGomez
committed
69ffed7

Commits on Sep 9, 2020

Fix segfault if pthread_getattr_np fails
tavianator
committed
a06edda
Only call pthread_attr_destroy() after getattr_np() succeeds on all libcs
tavianator
committed
a684153

Commits on Sep 17, 2020

make replace_prefix only take &str as arguments
matthiaskrgr
committed
026922a

Commits on Sep 20, 2020

Commits on Sep 21, 2020