$ git clone -n https://src.fedoraproject.org/rpms/rust-crossbeam-utils.git /var/lib/mock/f40-build-2061493-49167/root/chroot_tmpdir/scmroot/rust-crossbeam-utils
Cloning into '/var/lib/mock/f40-build-2061493-49167/root/chroot_tmpdir/scmroot/rust-crossbeam-utils'...
$ git fetch origin 575486a8c4a4f71cf549088d21030fef349727fb:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/rust-crossbeam-utils
 * [new ref]         575486a8c4a4f71cf549088d21030fef349727fb -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 575486a Rebuilt for https://fedoraproject.org/wiki/Fedora_39_Mass_Rebuild