$ git clone -n https://gitee.com/opencloudos-stream/rust-matrixmultiply.git /var/lib/mock/dist-ocs23-epol9-build-217993-16537/root/chroot_tmpdir/scmroot/rust-matrixmultiply
Cloning into '/var/lib/mock/dist-ocs23-epol9-build-217993-16537/root/chroot_tmpdir/scmroot/rust-matrixmultiply'...
$ git fetch origin master:KOJI_FETCH_HEAD
From https://gitee.com/opencloudos-stream/rust-matrixmultiply
 * [new branch]      master     -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 4ac1ae1 update