$ git clone -n https://src.fedoraproject.org/rpms/parsec.git /var/lib/mock/f38-build-side-42-init-devel-1374334-30706/root/chroot_tmpdir/scmroot/parsec
Cloning into '/var/lib/mock/f38-build-side-42-init-devel-1374334-30706/root/chroot_tmpdir/scmroot/parsec'...
$ git fetch origin bbccaa7c8ce41cfb07b7bdcb6a886439d061de01:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/parsec
 * [new ref]         bbccaa7c8ce41cfb07b7bdcb6a886439d061de01 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at bbccaa7 ensure build honors default Rust compiler flags and simplify Rust packaging