# git rev-parse -q --verify 4fcc47b515a079713ba578cc0d092399ff833eb4^{commit}
# git fetch -q -n -f git://gitlab.ozlabs.ibm.com/mirror/linux-stable-rc.git linux-4.19.y
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.

warning: There are too many unreachable loose objects; run 'git prune' to remove them.

# git rev-parse -q --verify 4fcc47b515a079713ba578cc0d092399ff833eb4^{commit}
fetched but didn't get requested revision!
Command 'git rev-parse -q --verify 4fcc47b515a079713ba578cc0d092399ff833eb4^{commit}' returned non-zero exit status 1
# rm -rf /kisskb/build/stable-rc-4.19_ppc64_defconfig+NO_RADIX_powerpc-gcc4.6
# Build took: 0:00:04.144334