Build failed. https://zuul.opendev.org/t/openstack/buildset/9b1a4eac75214a8987e6335a502ed9f4 - openstack-tox-docs https://zuul.opendev.org/t/openstack/build/7823325b70f3486cab5b21ce8d29f195 : FAILURE in 4m 31s - openstack-tox-py27 https://zuul.opendev.org/t/openstack/build/7a9a2c5c18cc43fbb3a08a0f43338c53 : SUCCESS in 4m 19s - openstack-tox-py36 https://zuul.opendev.org/t/openstack/build/fd6b7a89219049ae9640aefc84bc93c6 : SUCCESS in 4m 31s - openstack-tox-py37 https://zuul.opendev.org/t/openstack/build/acbaa8122eba43559410f711bfeebefa : SUCCESS in 6m 17s