Rollup of 11 pull requests#79167

Merged

bors merged 28 commits intorust-lang:masterfrom

m-ou-se:rollup-4g15apk

Nov 18, 2020

Commits on Oct 25, 2020

Commits on Oct 26, 2020

Updated documentation, x86 feature detection testing, and removed LLVM 9 exclusive features
DevJPM
committed

Commits on Nov 12, 2020

stability: More precise location for deprecation lint on macros
petrochenkov
committed

Commits on Nov 14, 2020

Tighten the bounds on atomic Ordering in std::sys::unix::weak
thomcc
committed

Commits on Nov 15, 2020

Commits on Nov 18, 2020