Build failed. https://zuul.opendev.org/t/openstack/buildset/0e6f31eea9ec4069b4eb24afe438adb3 - openstack-tox-docs https://zuul.opendev.org/t/openstack/build/52f8aeda270444f6b431551b8653aaa3 : FAILURE in 4m 20s - openstack-tox-py27 https://zuul.opendev.org/t/openstack/build/cecc97eae2034ee8a4f1881892dd035a : SUCCESS in 5m 23s - openstack-tox-py36 https://zuul.opendev.org/t/openstack/build/381269cd6671496995caaa20f175dc5f : SUCCESS in 4m 50s - openstack-tox-py37 https://zuul.opendev.org/t/openstack/build/00142d69b60e4c80a651ba5594e9a36d : SUCCESS in 3m 58s