$ git clone -n https://gitee.com/gcdota930915/boost.git /var/lib/mock/dist-an8.7-build-163164-58709/root/chroot_tmpdir/scmroot/boost
Cloning into '/var/lib/mock/dist-an8.7-build-163164-58709/root/chroot_tmpdir/scmroot/boost'...
$ git reset --hard origin/a8
HEAD is now at aa9acd9 set toolchain default to gcc