$ git clone -n https://src.fedoraproject.org/rpms/rust-linux-raw-sys0.3.git /var/lib/mock/f38-build-side-43-rust-devel-1422285-31465/root/chroot_tmpdir/scmroot/rust-linux-raw-sys0.3
Cloning into '/var/lib/mock/f38-build-side-43-rust-devel-1422285-31465/root/chroot_tmpdir/scmroot/rust-linux-raw-sys0.3'...
$ git fetch origin e1a02f4df7ce15549a8c92017702e07b05828600:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/rust-linux-raw-sys0.3
 * [new ref]         e1a02f4df7ce15549a8c92017702e07b05828600 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at e1a02f4 Initial import (linux-raw-sys 0.3 compat package)