Build failed. https://zuul.opendev.org/t/openstack/buildset/1b34f00a7377471a8196c4e9f34b19a3 - openstack-tox-docs https://zuul.opendev.org/t/openstack/build/714fd60d826e4e32a1f39c96ca10d3f7 : SUCCESS in 3m 54s - openstack-tox-py27 https://zuul.opendev.org/t/openstack/build/a3f13b9fe7c8409ea22f69ada04bab97 : SUCCESS in 4m 43s - openstack-tox-py36 https://zuul.opendev.org/t/openstack/build/5ce5bec3e4c34fabbc788982f8ea6cf8 : SUCCESS in 4m 44s - openstack-tox-py37 https://zuul.opendev.org/t/openstack/build/e6dd9f5d310b4f79ad578352e4d8ea87 : FAILURE in 4m 17s