Build failed. https://zuul.opendev.org/t/openstack/buildset/0e193c5386cc4deda89ec6dcce03c55d - openstack-tox-docs https://zuul.opendev.org/t/openstack/build/10413dcb855f4ecaaf1b7a9981a635ce : FAILURE in 10m 15s - openstack-tox-py27 https://zuul.opendev.org/t/openstack/build/79f175dc3a5946ea8c30f7b2cbaeb57e : SUCCESS in 5m 47s - openstack-tox-py36 https://zuul.opendev.org/t/openstack/build/a6e8c85ee9e64485b04d7d9ab2b5fdb7 : SUCCESS in 7m 01s - openstack-tox-py37 https://zuul.opendev.org/t/openstack/build/ce99da498c29431aaaeda61eff49e44d : SUCCESS in 6m 10s