Rollup of 7 pull requests#67426

Closed

Centril wants to merge 23 commits into

rust-lang:masterfrom

Centril:rollup-rswp4rf

Commits on Dec 12, 2019

Commits on Dec 15, 2019

Remove now-redundant range check on u128 -> f32 casts
Robin Kruppe
committed

Commits on Dec 18, 2019

Commits on Dec 19, 2019