tree c82452e80cf9abdc61adcff8a614052a83f6cfb5
parent ba2ed8916cdb7cab17d7b878b3172099beb74aa2
author Alex Van Damme <atv@google.com> 1540579554 -0700
committer Alex Van Damme <atv@google.com> 1540580460 +0000

Guard copy of artifacts on existence

- Hopefully, this stop the situation where a partial build still exports
artifacts, and breaks the 'latest' build symlink...

Change-Id: I5bfbaecab6b047816976926390952b36ff4c60b0