Build failed. https://zuul.opendev.org/t/openstack/buildset/aa1e4d85a14849979385caa7fe708850 - openstack-tox-docs https://zuul.opendev.org/t/openstack/build/71762eed6bb140b293daa7ec7c5e1987 : SUCCESS in 4m 17s - openstack-tox-py27 https://zuul.opendev.org/t/openstack/build/b644798272ce41dd92f6691596c3586e : FAILURE in 2m 30s - openstack-tox-py36 https://zuul.opendev.org/t/openstack/build/ce09ea33c8d244fe8bbbf6a29376f59e : SUCCESS in 2m 52s - openstack-tox-py37 https://zuul.opendev.org/t/openstack/build/007d20dd3bff4acfb4b90f84ae2b619e : SUCCESS in 3m 43s