Build failed. https://zuul.opendev.org/t/openstack/buildset/daf0d97201064af0870beb4e8efe4840 - openstack-tox-docs https://zuul.opendev.org/t/openstack/build/f378744a5d3047d987c40c4cd307d74a : FAILURE in 6m 32s - openstack-tox-py27 https://zuul.opendev.org/t/openstack/build/a83ec5b836e649a68a60efbbcccf0b6d : SUCCESS in 5m 44s - openstack-tox-py36 https://zuul.opendev.org/t/openstack/build/6834ae2ab34d40ebb3fc21e7f0742cfd : SUCCESS in 8m 24s - openstack-tox-py37 https://zuul.opendev.org/t/openstack/build/5c01f5c4dceb4bbc8cf124024c8c6bac : SUCCESS in 6m 26s