Build failed. https://zuul.opendev.org/t/openstack/buildset/71c5047547da45e4a085e4514ce34751 - openstack-tox-docs https://zuul.opendev.org/t/openstack/build/f694fb9eb68546d9a6f0ab37369a11bf : SUCCESS in 4m 50s - openstack-tox-py27 https://zuul.opendev.org/t/openstack/build/ce4eff8913a846b69fbf4764f5abe902 : SUCCESS in 12m 39s - openstack-tox-py36 https://zuul.opendev.org/t/openstack/build/ebc258a670214dd3ba1d79f57d3126b6 : SUCCESS in 10m 46s - openstack-tox-py37 https://zuul.opendev.org/t/openstack/build/b20278093f964a5991ef133d0885b580 : FAILURE in 13m 05s