$ git clone -n https://src.fedoraproject.org/rpms/rust-fs-set-times.git /var/lib/mock/f40-build-2268601-54746/root/chroot_tmpdir/scmroot/rust-fs-set-times
Cloning into '/var/lib/mock/f40-build-2268601-54746/root/chroot_tmpdir/scmroot/rust-fs-set-times'...
$ git fetch origin fd5e65057152e588d37952f05ac4e55cb0349622:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/rust-fs-set-times
 * [new ref]         fd5e65057152e588d37952f05ac4e55cb0349622 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at fd5e650 Update to version 0.20.1; Fixes RHBZ#2252350