Build failed. https://zuul.opendev.org/t/openstack/buildset/f19c82e353124903bcde0d4cc754137e - openstack-tox-docs https://zuul.opendev.org/t/openstack/build/799b9eedfd8f49c3bc2c9b87d3d38a73 : FAILURE in 5m 57s - openstack-tox-py27 https://zuul.opendev.org/t/openstack/build/43306236e79d40478741a16205e0ddde : SUCCESS in 4m 55s - openstack-tox-py36 https://zuul.opendev.org/t/openstack/build/266c1c09d8a34786817e02175163c1da : SUCCESS in 8m 12s - openstack-tox-py37 https://zuul.opendev.org/t/openstack/build/e7966c2be17941b6b16f4faf718d9fe9 : SUCCESS in 5m 33s