Build failed. - openstack-tox-docs https://zuul.opendev.org/t/openstack/build/10dc91fc7b4b4cf48c5910cfdd30a552 : SUCCESS in 7m 32s - openstack-tox-py27 https://zuul.opendev.org/t/openstack/build/8d23c5755039492eb0ffaa685b5b0867 : FAILURE in 6m 11s - openstack-tox-py36 https://zuul.opendev.org/t/openstack/build/40fa3a4f81fd498ea4ca09f98f3a9c14 : FAILURE in 6m 14s - openstack-tox-py37 https://zuul.opendev.org/t/openstack/build/de88aabda5534c7bbd57b47c071a6c76 : FAILURE in 6m 46s