Build failed. - openstack-tox-docs https://zuul.opendev.org/t/openstack/build/ca10db7050d74b828f139fb76aa19059 : SUCCESS in 6m 52s - openstack-tox-py27 https://zuul.opendev.org/t/openstack/build/8d16f71264da47f785b61ec6f9903b8a : SUCCESS in 6m 29s - openstack-tox-py36 https://zuul.opendev.org/t/openstack/build/19d4a124ad684989904b0ffa34247766 : FAILURE in 3m 47s - openstack-tox-py37 https://zuul.opendev.org/t/openstack/build/41401338e7524a01ba50e944981942f1 : FAILURE in 4m 42s