Build failed. https://zuul.opendev.org/t/openstack/buildset/20fe25fda04f47abada267f04d1487ad - openstack-tox-docs https://zuul.opendev.org/t/openstack/build/bcb32681ad564e40bce7e76d1f3c9714 : SUCCESS in 3m 13s - openstack-tox-py27 https://zuul.opendev.org/t/openstack/build/3acb3a166684410cad2ed90667458d22 : FAILURE in 6m 00s - openstack-tox-py36 https://zuul.opendev.org/t/openstack/build/1602148bb00d4a50a1814c552a48d2de : SUCCESS in 4m 07s - openstack-tox-py37 https://zuul.opendev.org/t/openstack/build/afec8a4532944ee89b7c0c98eb51e347 : SUCCESS in 4m 38s