Build failed. https://zuul.opendev.org/t/openstack/buildset/74ceea70dbc343af8a07f63a4b2aa0bb - openstack-tox-docs https://zuul.opendev.org/t/openstack/build/9bad8820725d4372b129ffb0cfcd7933 : FAILURE in 6m 01s - openstack-tox-py27 https://zuul.opendev.org/t/openstack/build/8146a1e6ab874c49b1154df6b6842133 : SUCCESS in 5m 29s - openstack-tox-py36 https://zuul.opendev.org/t/openstack/build/dc0339fc2c9c4448bae268261b1f0cdb : SUCCESS in 6m 46s - openstack-tox-py37 https://zuul.opendev.org/t/openstack/build/fd31059c9477487b8aac9f0728df91c3 : SUCCESS in 7m 38s