Build failed. https://zuul.opendev.org/t/openstack/buildset/e4e8a5bbd9a84a3bb47acf82ff9a6d07 - openstack-tox-docs https://zuul.opendev.org/t/openstack/build/b9bc26aa6ab74d898bfe830b29c28707 : SUCCESS in 5m 55s - openstack-tox-py27 https://zuul.opendev.org/t/openstack/build/f48bf76b25044256b0bbfe98ef1bc39c : SUCCESS in 4m 58s - openstack-tox-py36 https://zuul.opendev.org/t/openstack/build/d4485418ba334ad2887e20d0e67f32a2 : SUCCESS in 6m 38s - openstack-tox-py37 https://zuul.opendev.org/t/openstack/build/8b078cf58db64caa9b729842560a89d9 : FAILURE in 6m 02s