$ git clone -n https://src.fedoraproject.org/rpms/rust-cryptoki-sys.git /var/lib/mock/f40-build-2268490-54743/root/chroot_tmpdir/scmroot/rust-cryptoki-sys
Cloning into '/var/lib/mock/f40-build-2268490-54743/root/chroot_tmpdir/scmroot/rust-cryptoki-sys'...
$ git fetch origin 9cfbd0880069f60160b89311a20d9279a264849e:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/rust-cryptoki-sys
 * [new ref]         9cfbd0880069f60160b89311a20d9279a264849e -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 9cfbd08 Unconditionally rebuild bindings with bindgen to support more architectures