$ git clone -n https://src.fedoraproject.org/rpms/compiler-rt.git /var/lib/mock/f31-build-108961-33884/root/chroot_tmpdir/scmroot/compiler-rt
Cloning into '/var/lib/mock/f31-build-108961-33884/root/chroot_tmpdir/scmroot/compiler-rt'...
$ git reset --hard 34bc55f81cefb29af7cde2aec149774369b89756
HEAD is now at 34bc55f - Rebuilt for https://fedoraproject.org/wiki/Fedora_31_Mass_Rebuild