Build failed. - openstack-tox-docs https://zuul.opendev.org/t/openstack/build/e2799a3b49bc4e989558953964eea20b : SUCCESS in 6m 16s - openstack-tox-py27 https://zuul.opendev.org/t/openstack/build/10883af597eb4c8b830d2a6450b509c9 : FAILURE in 26m 55s - openstack-tox-py36 https://zuul.opendev.org/t/openstack/build/ec2b6f0bc3d84339ab226bffb158ca11 : FAILURE in 21m 32s - openstack-tox-py37 https://zuul.opendev.org/t/openstack/build/a166ddda07334f69807b81f160fc543b : SUCCESS in 6m 27s