$ git clone -n https://src.fedoraproject.org/rpms/rust-prefixdevname.git /var/lib/mock/f40-build-766803-124350/root/chroot_tmpdir/scmroot/rust-prefixdevname
Cloning into '/var/lib/mock/f40-build-766803-124350/root/chroot_tmpdir/scmroot/rust-prefixdevname'...
$ git reset --hard d2c3e8e9f8f586cef803e66d9a52ea2aa83bb156
HEAD is now at d2c3e8e Initial import