Angus Gratton 2a33dbb5a7 ci: Include context from failed build logs in the CI job log
This is faster to look up than browsing or downloading artifacts, and will often
contain the root cause.

Context includes the last 25 lines of the log, and any lines contaiing 'error:'
or 'warning:'
2021-04-12 05:48:40 +00:00
..