$ git clone -n https://gitee.com/opencloudos-stream/rustup.git /var/lib/mock/dist-oc9-epol-build-100389-64541/root/chroot_tmpdir/scmroot/rustup
Cloning into '/var/lib/mock/dist-oc9-epol-build-100389-64541/root/chroot_tmpdir/scmroot/rustup'...
$ git fetch origin master:KOJI_FETCH_HEAD
From https://gitee.com/opencloudos-stream/rustup
 * [new branch]      master     -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at e2b3e7b !6 add script for rpm-upgrade Merge pull request !6 from gordonwwang/master