Build failed. https://zuul.opendev.org/t/openstack/buildset/bfa966eb26e944e6b1f8915e5043d742 - openstack-tox-docs https://zuul.opendev.org/t/openstack/build/02734a57523243929018ed658adefc18 : SUCCESS in 4m 11s - openstack-tox-py27 https://zuul.opendev.org/t/openstack/build/c62cbd06ac51454e9892c1e6daabe162 : FAILURE in 2m 48s - openstack-tox-py36 https://zuul.opendev.org/t/openstack/build/f994a1a62fbd4664903a1a982f0c66a2 : SUCCESS in 4m 02s - openstack-tox-py37 https://zuul.opendev.org/t/openstack/build/2e1573faa55142cbae749c94d8ec8d04 : SUCCESS in 7m 05s