Build failed. https://zuul.opendev.org/t/openstack/buildset/c1cdb07ae6f144399600f5368987f7c9 - openstack-tox-docs https://zuul.opendev.org/t/openstack/build/fd88832a589d42b49c5762a0ea8772e9 : SUCCESS in 5m 46s - openstack-tox-py27 https://zuul.opendev.org/t/openstack/build/a6b2dfb143bd45a88c2e04fb8c6b6990 : SUCCESS in 6m 04s - openstack-tox-py36 https://zuul.opendev.org/t/openstack/build/4d2778c28fdc4aba85d33e320778bb0c : SUCCESS in 5m 36s - openstack-tox-py37 https://zuul.opendev.org/t/openstack/build/f4811780b9264ac688808af5bd305c8c : FAILURE in 4m 17s