Build failed. https://zuul.opendev.org/t/openstack/buildset/3e4f47540b8040969f3497607441727c - openstack-tox-docs https://zuul.opendev.org/t/openstack/build/a7bf01f3ba664f78a24d60e9b71a95da : FAILURE in 3m 03s - openstack-tox-py27 https://zuul.opendev.org/t/openstack/build/ff94c2e6d9fa42458b32eb7eafa62461 : SUCCESS in 3m 38s - openstack-tox-py36 https://zuul.opendev.org/t/openstack/build/afb67f1d498a4893a046fa3d0b2451e7 : SUCCESS in 3m 40s - openstack-tox-py37 https://zuul.opendev.org/t/openstack/build/1116887553b54178bcfbbf715be468f9 : SUCCESS in 3m 25s