$ git clone -n https://src.fedoraproject.org/rpms/rust-struct-field-names-as-array.git /var/lib/mock/f45-build-45222-821/root/chroot_tmpdir/scmroot/rust-struct-field-names-as-array
Cloning into '/var/lib/mock/f45-build-45222-821/root/chroot_tmpdir/scmroot/rust-struct-field-names-as-array'...
$ git fetch origin debba6863ee037d016488c3c67574e633b1203bf:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/rust-struct-field-names-as-array
 * [new ref]         debba6863ee037d016488c3c67574e633b1203bf -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at debba68 Rebuilt for https://fedoraproject.org/wiki/Fedora_45_Mass_Rebuild