Build failed. - build-openstack-sphinx-docs http://logs.openstack.org/periodic-stable/opendev.org/openstack/taskflow/stable/queens/build-openstack-sphinx-docs/ee7ae85/ : FAILURE in 3m 27s - openstack-tox-py27 http://logs.openstack.org/periodic-stable/opendev.org/openstack/taskflow/stable/queens/openstack-tox-py27/f4037f9/ : RETRY_LIMIT in 2m 44s