Build failed. https://zuul.opendev.org/t/openstack/buildset/23d4b5db66c74f2a9f0328e97892f782 - openstack-tox-docs https://zuul.opendev.org/t/openstack/build/3ce273d4a9c8445b977f42c880897af1 : SUCCESS in 3m 08s - openstack-tox-py27 https://zuul.opendev.org/t/openstack/build/3fd70bb4e1b14199ac36ead642ba1c2b : SUCCESS in 2m 45s - openstack-tox-py36 https://zuul.opendev.org/t/openstack/build/8baa215443bf4b2ea89050cb37b95fb8 : SUCCESS in 2m 41s - openstack-tox-py37 https://zuul.opendev.org/t/openstack/build/31101deb3dab4db0bcc7af4889948057 : FAILURE in 2m 54s