Build failed. https://zuul.opendev.org/t/openstack/buildset/b45456fda6ec45a2a9c3c8f3da4fffa9 - openstack-tox-docs https://zuul.opendev.org/t/openstack/build/7e325c66892c42e5b431cbed06c6feb7 : SUCCESS in 3m 12s - openstack-tox-py27 https://zuul.opendev.org/t/openstack/build/ab4c0b8889844dca85f5db12d5c7aa0d : SUCCESS in 2m 44s - openstack-tox-py36 https://zuul.opendev.org/t/openstack/build/6095dc6d60904c03802036cd0916ee7f : SUCCESS in 4m 17s - openstack-tox-py37 https://zuul.opendev.org/t/openstack/build/71a005adda7d4135b4d13fdde7d94b45 : FAILURE in 3m 51s