Build failed. https://zuul.opendev.org/t/openstack/buildset/6a550b9e11cc46c7800fb043acdd9b7f - openstack-tox-docs https://zuul.opendev.org/t/openstack/build/b4a1c6ffa3504ba2b475dbd91d0f8775 : FAILURE in 4m 46s - openstack-tox-py27 https://zuul.opendev.org/t/openstack/build/f48837b5925541e5b65526a3f145925f : SUCCESS in 4m 26s - openstack-tox-py36 https://zuul.opendev.org/t/openstack/build/6e7495139bf94785b8e22b99a7cb7310 : SUCCESS in 4m 41s - openstack-tox-py37 https://zuul.opendev.org/t/openstack/build/433f41d818d4448b9fa55eac3acc7fe3 : SUCCESS in 4m 55s