prepare-as-if-jh-branch can timeout with a lot of GC messages
This was spun from #388562 (comment 1246103683) where we can see a lot of these messages in prepare-as-if-jh-branch job:
warning: There are too many unreachable loose objects; run 'git prune' to remove them.
Auto packing the repository in background for optimum performance.
See "git help gc" for manual housekeeping.
warning: The last gc run reported the following. Please correct the root cause
and remove .git/gc.log
Automatic cleanup will not be performed until the file is removed.This can eventually timeout.
Examples:
Edited by Lin Jen-Shin