$ git clone -n http://fedora.riscv.rocks:3000/rpms/libcxx.git /var/lib/mock/f33-build-574422-66001/root/chroot_tmpdir/scmroot/libcxx
Cloning into '/var/lib/mock/f33-build-574422-66001/root/chroot_tmpdir/scmroot/libcxx'...
$ git reset --hard fcaf94286a81df1113d904b28738ff7f0a6f7b6e
HEAD is now at fcaf942 Bootstrap for riscv64