Build failed. https://zuul.opendev.org/t/openstack/buildset/2ddcbcc14bdc443abd886d6ef66d33b7 - openstack-tox-docs https://zuul.opendev.org/t/openstack/build/87f4f9b3cd5b436bb80e9852736dbf5a : FAILURE in 4m 05s - openstack-tox-py27 https://zuul.opendev.org/t/openstack/build/884370c7b10f4478ac7f4106dd4c502e : FAILURE in 4m 28s - openstack-tox-py36 https://zuul.opendev.org/t/openstack/build/8e7f264750a94c94a03091a1ddc7a7d6 : FAILURE in 5m 24s - openstack-tox-py37 https://zuul.opendev.org/t/openstack/build/8d88e7e0bde84a609ac075697bd23716 : FAILURE in 5m 02s