When the number of concurrent sccache clients grows, the server can take time to auto-start, seems to be a bit racy. So we could just pre-start it before the build.
Created attachment 403557 [details] Patch
Tools/Scripts/svn-apply failed to apply attachment 403557 [details] to trunk. Please resolve the conflicts and upload a new patch.
Created attachment 403769 [details] Patch
Committed r264096: <https://trac.webkit.org/changeset/264096> All reviewed patches have been landed. Closing bug and clearing flags on attachment 403769 [details].
<rdar://problem/65218412>