Build failed. https://zuul.opendev.org/t/openstack/buildset/d1f9d833ff074f17a971dc2bb1e80365 - openstack-tox-docs https://zuul.opendev.org/t/openstack/build/e41f610a5eaf4f5f96b8f0f72519fde7 : SUCCESS in 2m 56s - openstack-tox-py27 https://zuul.opendev.org/t/openstack/build/5f25819996c548079e9d605ec6faffb8 : FAILURE in 1m 48s - openstack-tox-py36 https://zuul.opendev.org/t/openstack/build/8d0a44bcc5564417a2775cd099798b31 : SUCCESS in 3m 05s - openstack-tox-py37 https://zuul.opendev.org/t/openstack/build/b571d4ca404445ed9c0bb05bd61d474a : SUCCESS in 2m 59s