Build failed. - build-openstack-sphinx-docs http://logs.openstack.org/periodic-stable/git.openstack.org/openstack/neutron-vpnaas/stable/queens/build-openstack-sphinx-docs/1793580/ : RETRY_LIMIT in 4m 24s - openstack-tox-py27 http://logs.openstack.org/periodic-stable/git.openstack.org/openstack/neutron-vpnaas/stable/queens/openstack-tox-py27/99cd3e4/ : SUCCESS in 7m 00s