Build failed. https://zuul.opendev.org/t/openstack/buildset/d40fa5c5b2a647518065992f8ea16762 - openstack-tox-docs https://zuul.opendev.org/t/openstack/build/cd8f694ee0c4418aa0297d85a895f45e : SUCCESS in 4m 11s - openstack-tox-py27 https://zuul.opendev.org/t/openstack/build/7849e8d5fedf41d1b28ce2d5c9e525fd : FAILURE in 6m 08s - openstack-tox-py36 https://zuul.opendev.org/t/openstack/build/a95cf76188ed4b78aefb0e0d78c294f5 : SUCCESS in 3m 24s - openstack-tox-py37 https://zuul.opendev.org/t/openstack/build/738c7af6dcd341ab93c37755a2a36cec : SUCCESS in 3m 51s