$ git clone -n https://src.fedoraproject.org/rpms/rust-tracing-error.git /var/lib/mock/f45-build-45606-824/root/chroot_tmpdir/scmroot/rust-tracing-error
Cloning into '/var/lib/mock/f45-build-45606-824/root/chroot_tmpdir/scmroot/rust-tracing-error'...
$ git fetch origin f9eb5766f46e24f51e948e652502dd2aa7ad82bc:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/rust-tracing-error
 * [new ref]         f9eb5766f46e24f51e948e652502dd2aa7ad82bc -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at f9eb576 Rebuilt for https://fedoraproject.org/wiki/Fedora_45_Mass_Rebuild