Gracefully handle errors during a build.#8247

Merged

bors merged 2 commits intorust-lang:masterfrom ehuss:output-hang

May 18, 2020

+185-37

Commits on May 16, 2020

Gracefully handle errors during a build.
ehuss
committed

Commits on May 18, 2020

Ensure drain_the_queue does not attempt to return a Result.
ehuss
committed