Rollup of 5 pull requests#63715

Merged

bors merged 15 commits intorust-lang:masterfrom

Centril:rollup-dga8qtp

Aug 20, 2019

Commits on Aug 4, 2019

Remove recommendation about idiomatic syntax for Arc::Clone
nrc
committed

Commits on Aug 18, 2019

Fixed: error: unnecessary trailing semicolon
n-salim
committed

Commits on Aug 19, 2019