Build failed. https://zuul.opendev.org/t/openstack/buildset/df7d052d629c46468e1d57d2786698b3 - openstack-tox-docs https://zuul.opendev.org/t/openstack/build/d6402a780fc0470d80332a21c1fdc4a1 : SUCCESS in 5m 38s - openstack-tox-py27 https://zuul.opendev.org/t/openstack/build/4f3ee4695e82499cbb8f6383448f9402 : FAILURE in 4m 49s - openstack-tox-py36 https://zuul.opendev.org/t/openstack/build/dc86d7908aef4fb5ae2733b48977416c : SUCCESS in 4m 35s - openstack-tox-py37 https://zuul.opendev.org/t/openstack/build/2928a8b74f3f494a87f10f9eda100ab9 : SUCCESS in 3m 29s