$ whoami
root
$ git clone -n http://8.131.229.236/anolis-os/gcc-toolset-9-elfutils /var/lib/mock/dist-el8-build-6198-84/root/chroot_tmpdir/scmroot/gcc-toolset-9-elfutils
Cloning into '/var/lib/mock/dist-el8-build-6198-84/root/chroot_tmpdir/scmroot/gcc-toolset-9-elfutils'...
$ git reset --hard origin/a8
HEAD is now at f39b59f import gcc-toolset-9-elfutils-0.176-5.el8.src.rpm