Build failed. https://zuul.opendev.org/t/openstack/buildset/d27436d708ce4ba5b62218a7ec1e4511 - openstack-tox-docs https://zuul.opendev.org/t/openstack/build/dad3a0a1b6d14008963b50ff4fed5dc8 : SUCCESS in 4m 02s - openstack-tox-py27 https://zuul.opendev.org/t/openstack/build/09c4cd5db89a4bf6ad3ee3cc2beb9865 : SUCCESS in 4m 39s - openstack-tox-py36 https://zuul.opendev.org/t/openstack/build/e5422cf16e504069a7f427a938009b55 : SUCCESS in 4m 38s - openstack-tox-py37 https://zuul.opendev.org/t/openstack/build/01dd7b50ddb04958b5e3b119b75bbc08 : FAILURE in 4m 04s