$ git clone -n https://src.fedoraproject.org/rpms/rust-fs-set-times.git /var/lib/mock/f43-build-59176386-6571523/root/chroot_tmpdir/scmroot/rust-fs-set-times
Cloning into '/var/lib/mock/f43-build-59176386-6571523/root/chroot_tmpdir/scmroot/rust-fs-set-times'...
$ git fetch origin 0243ea7b6de84c641eac0f1362b366ced312e109:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/rust-fs-set-times
 * [new ref]         0243ea7b6de84c641eac0f1362b366ced312e109 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 0243ea7 Update to version 0.20.3; Fixes RHBZ#2351125