Rollup of 8 pull requests#61044

Merged

bors merged 17 commits intorust-lang:masterfrom

Centril:rollup-ztsgb9p

May 23, 2019

Commits on May 13, 2019

Always try to project predicates when finding auto traits in rustdoc
Aaron1011
committed

Commits on May 21, 2019

Add FAQ for NLL migration
Jethro Beekman
committed

Commits on May 22, 2019