Merge pull request #2597 from github/mbg/caching/output-improvements #236

Job	Run time
Upload debug artifacts (stable-v2.14.6)	4m 35s
Upload debug artifacts (stable-v2.15.5)	5m 10s
Upload debug artifacts (stable-v2.16.6)	5m 2s
Upload debug artifacts (stable-v2.17.6)	5m 34s
Upload debug artifacts (stable-v2.18.4)	5m 27s
Upload debug artifacts (default)	5m 31s
Upload debug artifacts (linked)	5m 5s
Upload debug artifacts (nightly-latest)	5m 22s
Download and check debug artifacts	17s
	42m 3s

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