Build failed. https://zuul.opendev.org/t/openstack/buildset/0c3284aec36d42c587c05e4d3db18ab1 - openstack-tox-docs https://zuul.opendev.org/t/openstack/build/33c8ecd904834b7a8e096fe77202e197 : FAILURE in 6m 37s - openstack-tox-py27 https://zuul.opendev.org/t/openstack/build/eebbf53b574948bd9e1fc1fd9ba0967c : SUCCESS in 5m 36s - openstack-tox-py36 https://zuul.opendev.org/t/openstack/build/74d61bde3e95497d92bc2b173947122e : SUCCESS in 6m 07s - openstack-tox-py37 https://zuul.opendev.org/t/openstack/build/69db1d6ecb1341f591b08eb5772db14f : SUCCESS in 5m 47s