$ git clone -n https://src.fedoraproject.org/rpms/rust-rd-util.git /var/lib/mock/f39-build-1500027-34781/root/chroot_tmpdir/scmroot/rust-rd-util
Cloning into '/var/lib/mock/f39-build-1500027-34781/root/chroot_tmpdir/scmroot/rust-rd-util'...
$ git fetch origin ef36893637cfb0360e18c35049d6fad761d66d5d:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/rust-rd-util
 * [new ref]         ef36893637cfb0360e18c35049d6fad761d66d5d -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at ef36893 Fix builds with Rust 1.73+ caused by ambiguous <number>::div_ceil calls