$ git clone -n https://src.fedoraproject.org/rpms/rust.git /var/lib/mock/f31-build-115642-34508/root/chroot_tmpdir/scmroot/rust
Cloning into '/var/lib/mock/f31-build-115642-34508/root/chroot_tmpdir/scmroot/rust'...
$ git reset --hard b93df249e6b935cf87ed1a763c84e9b925fc5789
HEAD is now at b93df24 Update to 1.37.0.