Build failed. https://zuul.opendev.org/t/openstack/buildset/1508bce281b2410caeb17d53612e9e9b - openstack-tox-docs https://zuul.opendev.org/t/openstack/build/4a2e5c6e8fbc47278e363d66291923e1 : FAILURE in 3m 38s - openstack-tox-py27 https://zuul.opendev.org/t/openstack/build/2ac409203bc04b1b92e135fbc37c564a : SUCCESS in 7m 59s - openstack-tox-py36 https://zuul.opendev.org/t/openstack/build/0c242c18d8e8419f96bf3674be4e35a6 : SUCCESS in 5m 17s - openstack-tox-py37 https://zuul.opendev.org/t/openstack/build/3038514c1cac42c3bbebf75789ad2b66 : SUCCESS in 3m 53s