$ whoami
root
$ git clone -n http://8.131.229.236/anolis-os/gcc-toolset-9-dyninst /var/lib/mock/dist-el8-gcc-toolset-9-build-7717-706/root/chroot_tmpdir/scmroot/gcc-toolset-9-dyninst
Cloning into '/var/lib/mock/dist-el8-gcc-toolset-9-build-7717-706/root/chroot_tmpdir/scmroot/gcc-toolset-9-dyninst'...
$ git reset --hard origin/a8
HEAD is now at 3c643d8 import gcc-toolset-9-dyninst-10.1.0-1.el8.src.rpm