Build failed. https://zuul.opendev.org/t/openstack/buildset/b20e20bd9f1b483dbca4b1f6f68f2d1a - openstack-tox-docs https://zuul.opendev.org/t/openstack/build/6fcc7f7e0b34427481a8018f19faed9a : SUCCESS in 3m 20s - openstack-tox-py27 https://zuul.opendev.org/t/openstack/build/7041e4d0b8cc4c1996f0600cd681f765 : FAILURE in 2m 15s - openstack-tox-py36 https://zuul.opendev.org/t/openstack/build/e81abaeac2f9421fad48dcce4df71f1c : SUCCESS in 3m 03s - openstack-tox-py37 https://zuul.opendev.org/t/openstack/build/dec812a771d44e99911b3209b6efd0f9 : SUCCESS in 4m 05s