Build failed. https://zuul.opendev.org/t/openstack/buildset/cbad23ebcb4e4a9ca2a801729bb7373a - openstack-tox-docs https://zuul.opendev.org/t/openstack/build/08b23dc46148456f8141e3f2374dca8d : FAILURE in 4m 22s - openstack-tox-py27 https://zuul.opendev.org/t/openstack/build/b2bb8cb3668c4d6a9349a2d323a3f87f : SUCCESS in 4m 27s - openstack-tox-py36 https://zuul.opendev.org/t/openstack/build/4b75f29d0ba140ddb9c3f71e365dfb11 : SUCCESS in 3m 23s - openstack-tox-py37 https://zuul.opendev.org/t/openstack/build/3677ea4c87fb4a2aba9998ce1914328c : SUCCESS in 3m 35s