Rollup of 20 pull requests#48113

Merged

bors merged 46 commits intorust-lang:masterfrom

Feb 10, 2018

Commits on Jan 18, 2018

Commits on Jan 19, 2018

Adjust language as per suggestions
varkor
committed

Commits on Jan 21, 2018

Use repeat instead of RangeFrom
varkor
committed

Commits on Jan 26, 2018

derive PartialEq and Eq for `ParseCharError`
tinaun
authored

Commits on Jan 28, 2018

Commits on Jan 29, 2018

Create a directory for --out-dir if it does not already exist
varkor
committed

Commits on Feb 5, 2018

Add build.tools option to manage installation of extended rust tools.
o01eg
committed

Commits on Feb 10, 2018