$ git clone -n https://src.fedoraproject.org/rpms/rust-base100.git /var/lib/mock/f31-build-53797-27905/root/chroot_tmpdir/scmroot/rust-base100
Cloning into '/var/lib/mock/f31-build-53797-27905/root/chroot_tmpdir/scmroot/rust-base100'...
$ git reset --hard 49fa5110e7c2c97a009979bce1c2369ed7f6a299
HEAD is now at 49fa511 - Rebuilt for https://fedoraproject.org/wiki/Fedora_30_Mass_Rebuild