Build failed. https://zuul.opendev.org/t/openstack/buildset/e0834fbc9a5c4654adc2ae0ea39c92b0 - openstack-tox-docs https://zuul.opendev.org/t/openstack/build/8c67bd4667414a94a55b14d8d8720c63 : SUCCESS in 6m 37s - openstack-tox-py27 https://zuul.opendev.org/t/openstack/build/bfc8a7cd2fef4bbdb857bda50885aed2 : FAILURE in 5m 54s - openstack-tox-py36 https://zuul.opendev.org/t/openstack/build/7aee0e44c1eb4f248b65bd121bf93563 : SUCCESS in 7m 13s - openstack-tox-py37 https://zuul.opendev.org/t/openstack/build/6c6b3e9cba13438684828bfb18388032 : SUCCESS in 5m 54s