$ git clone -n https://src.fedoraproject.org/rpms/mrpt.git /var/lib/mock/f38-build-side-42-init-devel-1136513-30376/root/chroot_tmpdir/scmroot/mrpt
Cloning into '/var/lib/mock/f38-build-side-42-init-devel-1136513-30376/root/chroot_tmpdir/scmroot/mrpt'...
error: RPC failed; HTTP 503 curl 22 The requested URL returned error: 503
fatal: the remote end hung up unexpectedly