Build failed. https://zuul.opendev.org/t/openstack/buildset/8b75a8710b2c42ae95cec725e00af824 - openstack-tox-docs https://zuul.opendev.org/t/openstack/build/0430d8b4de0e4eda8704b0178eff91b7 : FAILURE in 6m 10s - openstack-tox-py27 https://zuul.opendev.org/t/openstack/build/ceb264afbfa04224a7976fc2d745528a : SUCCESS in 4m 49s - openstack-tox-py36 https://zuul.opendev.org/t/openstack/build/f4e99b9a2ce54434af28d9a1c069f2c0 : SUCCESS in 6m 54s - openstack-tox-py37 https://zuul.opendev.org/t/openstack/build/d9e760c46b24426b8a154fea24df6812 : SUCCESS in 7m 39s