$ git clone -n https://src.fedoraproject.org/rpms/rust-uu_echo.git /var/lib/mock/f40-build-774730-127736/root/chroot_tmpdir/scmroot/rust-uu_echo
Cloning into '/var/lib/mock/f40-build-774730-127736/root/chroot_tmpdir/scmroot/rust-uu_echo'...
$ git reset --hard 920e853eb1abf1d849b69b1c250ccb72669bb498
HEAD is now at 920e853 Initial package (rhbz#2257519)