Build failed. https://zuul.opendev.org/t/openstack/buildset/41c5072a1c1d4398a07735b973b3266a - openstack-tox-docs https://zuul.opendev.org/t/openstack/build/76c81f316dc2499f80b87fb885dd76c5 : SUCCESS in 3m 13s - openstack-tox-py27 https://zuul.opendev.org/t/openstack/build/788e11bba4274fe4a8860c46c2201f1c : FAILURE in 3m 00s - openstack-tox-py36 https://zuul.opendev.org/t/openstack/build/9aec5474d81348ff9391b6cf0a35c273 : SUCCESS in 3m 02s - openstack-tox-py37 https://zuul.opendev.org/t/openstack/build/2e8e52d750974123a30c0916fbb3ed91 : FAILURE in 3m 40s