$ git clone -n https://gitee.com/opencloudos-stream/rust-rustls0.21.git /var/lib/mock/dist-oc9-epol-build-98655-60293/root/chroot_tmpdir/scmroot/rust-rustls0.21
Cloning into '/var/lib/mock/dist-oc9-epol-build-98655-60293/root/chroot_tmpdir/scmroot/rust-rustls0.21'...
$ git fetch origin master:KOJI_FETCH_HEAD
From https://gitee.com/opencloudos-stream/rust-rustls0.21
 * [new branch]      master     -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 7c71b05 update