$ git clone -n https://src.fedoraproject.org/rpms/rust-bindgen.git /var/lib/mock/f42-build-side-1-3512281-46067/root/chroot_tmpdir/scmroot/rust-bindgen
Cloning into '/var/lib/mock/f42-build-side-1-3512281-46067/root/chroot_tmpdir/scmroot/rust-bindgen'...
$ git fetch origin e50440984d212cd011905ad68979be794c939309:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/rust-bindgen
 * [new ref]         e50440984d212cd011905ad68979be794c939309 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at e504409 Update to version 0.71.1; Fixes RHBZ#2305397