Build failed. https://zuul.opendev.org/t/openstack/buildset/e29a479da27a42729f75fe201fbddbc2 - openstack-tox-docs https://zuul.opendev.org/t/openstack/build/0e961dd0f24040e1a5fe03661c6b06fb : SUCCESS in 4m 38s - openstack-tox-py27 https://zuul.opendev.org/t/openstack/build/0893819ee79e443db685c144f8c7a16d : FAILURE in 3m 40s - openstack-tox-py36 https://zuul.opendev.org/t/openstack/build/2808e8d3c01f486e866a440014d5ff7c : SUCCESS in 4m 26s - openstack-tox-py37 https://zuul.opendev.org/t/openstack/build/8a9deae5bff64c36aa844be2ea6b7af9 : SUCCESS in 4m 51s