Build failed. https://zuul.opendev.org/t/openstack/buildset/2fd41c1256cd49b582770d475aa3f1eb - openstack-tox-docs https://zuul.opendev.org/t/openstack/build/972b111257954053a5ab5ea29c94b4a8 : FAILURE in 4m 16s - openstack-tox-py27 https://zuul.opendev.org/t/openstack/build/f31a2778a705450da28691a08a52740a : FAILURE in 4m 24s - openstack-tox-py36 https://zuul.opendev.org/t/openstack/build/032b07bfc02e42e08d0a1c3285ff67a3 : FAILURE in 4m 16s - openstack-tox-py37 https://zuul.opendev.org/t/openstack/build/5a8556ef78da49db83e2486cc3a062ff : FAILURE in 5m 36s