Build failed. https://zuul.opendev.org/t/openstack/buildset/4e1b721fad4e4a57a175647b4eac6450 - openstack-tox-docs https://zuul.opendev.org/t/openstack/build/d45ca581700d44fabbabd5ebcf98d26b : SUCCESS in 4m 23s - openstack-tox-py27 https://zuul.opendev.org/t/openstack/build/837923dada324266abffa4db69522441 : FAILURE in 3m 56s - openstack-tox-py36 https://zuul.opendev.org/t/openstack/build/83ca259d2b1946679bb77a9f682baf5d : SUCCESS in 3m 39s - openstack-tox-py37 https://zuul.opendev.org/t/openstack/build/55f63f6c926c40f6bd598fac8a0963f0 : SUCCESS in 4m 46s