Add an option to run rustbuild on low priority on Windows and Unix#42069

Merged

bors merged 3 commits intorust-lang:masterfrom

QuietMisdreavus:low_pri

May 20, 2017

Commits on May 16, 2017

Add an option to run rustbuild on low priority

Zoxc
authored and
QuietMisdreavus
committed

Commits on May 18, 2017

update config name and description for low-priority
QuietMisdreavus
committed

Commits on May 19, 2017

fix casting of PRIO_PGRP
QuietMisdreavus
committed