Build failed. https://zuul.opendev.org/t/openstack/buildset/f44d91a9201b42c09c44fb6d9d35ebb0 - openstack-tox-docs https://zuul.opendev.org/t/openstack/build/9728530b107d459bbc2a5cb0fae017ef : SUCCESS in 4m 23s - openstack-tox-py27 https://zuul.opendev.org/t/openstack/build/0de79b90cbbb474bb611ab913f903cf0 : FAILURE in 5m 51s - openstack-tox-py36 https://zuul.opendev.org/t/openstack/build/5854d556029d4e73ba4ad398389aafa6 : SUCCESS in 6m 33s - openstack-tox-py37 https://zuul.opendev.org/t/openstack/build/87cd68045d9e47b8a070238d8a16a5f7 : SUCCESS in 4m 34s