$ git clone -n https://gitee.com/opencloudos-stream/rust-fs-err.git /var/lib/mock/dist-oc9-epol-build-87571-58029/root/chroot_tmpdir/scmroot/rust-fs-err
Cloning into '/var/lib/mock/dist-oc9-epol-build-87571-58029/root/chroot_tmpdir/scmroot/rust-fs-err'...
$ git fetch origin master:KOJI_FETCH_HEAD
From https://gitee.com/opencloudos-stream/rust-fs-err
 * [new branch]      master     -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at c0828d8 update