We added rety in commit-queue in https://bugs.webkit.org/show_bug.cgi?id=222038. However, in many cases, that also doesn't help. Another idea is to perform: 'git reset --hard' between retry attempts.' We can reset to few commits earlier, and in next build-step buildbot will update to latest revision. This is to reset the state in case the repo is in some weird/unexpected state.
Created attachment 425427 [details]
Committed r275624: <https://commits.webkit.org/r275624>
All reviewed patches have been landed. Closing bug and clearing flags on attachment 425427 [details].