Build failed. https://zuul.opendev.org/t/openstack/buildset/c47f7491daa74bf8a37bbe44ef81fd00 - openstack-tox-docs https://zuul.opendev.org/t/openstack/build/b9bc06ef07074b098c5d833365793d2c : FAILURE in 5m 21s - openstack-tox-py27 https://zuul.opendev.org/t/openstack/build/bd45fea9df9d46c2a16a120a7243865c : SUCCESS in 5m 11s - openstack-tox-py36 https://zuul.opendev.org/t/openstack/build/40c3ec747c0c4b82a87eb400f3fb9b3f : SUCCESS in 7m 19s - openstack-tox-py37 https://zuul.opendev.org/t/openstack/build/e76c9a2810d6492e863b22400709d704 : SUCCESS in 10m 24s