Merge pull request #1112 from rust-lang/debuginfo #1036

Job	Run time
Build stable compiler container	19s
Build stable compiler container	19s
Build frontend	1m 34s
Build frontend	1m 34s
Build beta compiler container	27s
Build beta compiler container	27s
Build backend	11m 7s
Build backend	11m 7s
Build nightly compiler container	18s
Build nightly compiler container	18s
Running integration tests	5m 41s
Running integration tests	7m 22s
Release artifacts	0s
Release artifacts	3m 12s
	43m 45s

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