Build failed. https://zuul.opendev.org/t/openstack/buildset/b102e03945ac40d8b91504170e452374 - openstack-tox-docs https://zuul.opendev.org/t/openstack/build/2956eec09c6448029a1a51f2267e9d40 : SUCCESS in 3m 05s - openstack-tox-py27 https://zuul.opendev.org/t/openstack/build/d96c630323ac428695d4baf10c9bc474 : FAILURE in 3m 00s - openstack-tox-py36 https://zuul.opendev.org/t/openstack/build/69440e760fc5463b9ec95a44ad17cc99 : SUCCESS in 2m 37s - openstack-tox-py37 https://zuul.opendev.org/t/openstack/build/ac899bf466484963bb0232d039a56088 : FAILURE in 2m 39s