Build failed. - build-openstack-sphinx-docs http://logs.openstack.org/periodic-stable/opendev.org/openstack/oslo.db/stable/queens/build-openstack-sphinx-docs/b2c086e/html/ : SUCCESS in 3m 50s - openstack-tox-py27 http://logs.openstack.org/periodic-stable/opendev.org/openstack/oslo.db/stable/queens/openstack-tox-py27/3cb280e/ : RETRY_LIMIT in 6m 50s