$ git clone -n https://gitee.com/gordonwwang/rust.git /var/lib/mock/dist-ocs23-build-194939-13158/root/chroot_tmpdir/scmroot/rust
Cloning into '/var/lib/mock/dist-ocs23-build-194939-13158/root/chroot_tmpdir/scmroot/rust'...
$ git fetch origin HEAD:KOJI_FETCH_HEAD
From https://gitee.com/gordonwwang/rust
 * [new ref]         HEAD       -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 6d3331f modify sources