Rollup of 10 pull requests#68011

Merged

bors merged 28 commits intorust-lang:masterfrom

JohnTitor:rollup-44s8twu

Jan 8, 2020

Commits on Jan 2, 2020

Remove wrong advice about spin locks from `spin_loop_hint` docs
matklad
committed

Commits on Jan 3, 2020

add a check for variable names that might match by word
cjkenn
committed

Commits on Jan 4, 2020

Commits on Jan 5, 2020

Commits on Jan 6, 2020

Remove weak.rs for VxWorks

Umesh Kalappa
authored and
BaoshanPang
committed
rustdoc: Remove more `#[doc(cfg(..))]` duplicates
ollie27
committed

Commits on Jan 7, 2020

Commits on Jan 8, 2020