Build failed. - build-openstack-sphinx-docs http://logs.openstack.org/periodic-stable/opendev.org/openstack/heat/stable/pike/build-openstack-sphinx-docs/37a28fe/html/ : SUCCESS in 8m 32s - openstack-tox-py27 http://logs.openstack.org/periodic-stable/opendev.org/openstack/heat/stable/pike/openstack-tox-py27/61fca5b/ : RETRY_LIMIT in 1m 54s