$ git clone -n https://src.fedoraproject.org/rpms/rust-cargo_metadata.git /var/lib/mock/f38-build-side-43-rust-devel-1417943-31459/root/chroot_tmpdir/scmroot/rust-cargo_metadata
Cloning into '/var/lib/mock/f38-build-side-43-rust-devel-1417943-31459/root/chroot_tmpdir/scmroot/rust-cargo_metadata'...
$ git fetch origin bbd7958269da6afe14e8e017c9dbcdad7f3f585f:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/rust-cargo_metadata
 * [new ref]         bbd7958269da6afe14e8e017c9dbcdad7f3f585f -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at bbd7958 Update to version 0.17.0; Fixes RHBZ#2225095