$ git clone -n https://src.fedoraproject.org/rpms/rust-below.git /var/lib/mock/f40-build-740004-109436/root/chroot_tmpdir/scmroot/rust-below
Cloning into '/var/lib/mock/f40-build-740004-109436/root/chroot_tmpdir/scmroot/rust-below'...
$ git reset --hard b1746f1a24906c6c323a92df09b427f39d76b26a
HEAD is now at b1746f1 Update to 0.7.1