Build failed. https://zuul.opendev.org/t/openstack/buildset/b020ccc66e1c4b73b2387fdd2c4ec71c - openstack-tox-docs https://zuul.opendev.org/t/openstack/build/57fd4a15a08b4fd59d6b555fa7e9a924 : SUCCESS in 3m 48s - openstack-tox-py27 https://zuul.opendev.org/t/openstack/build/92540db13848416fa639b2d7c082e8b5 : FAILURE in 2m 51s - openstack-tox-py36 https://zuul.opendev.org/t/openstack/build/4292c6d4bf9a470a9e0fe9bc02d169c9 : SUCCESS in 2m 49s - openstack-tox-py37 https://zuul.opendev.org/t/openstack/build/af81e90166d842debf614b70362d48ef : FAILURE in 2m 48s