Build failed. https://zuul.opendev.org/t/openstack/buildset/5c83c46b323b45d38d857b183e751069 - openstack-tox-docs https://zuul.opendev.org/t/openstack/build/6562fdc34d0a45128b3aeab3e56e44b0 : SUCCESS in 3m 48s - openstack-tox-py27 https://zuul.opendev.org/t/openstack/build/3971c9fbbb8148d483c5b76ba8aa2b8e : FAILURE in 3m 04s - openstack-tox-py36 https://zuul.opendev.org/t/openstack/build/cfa451b7e2b0467681be57b3540b9ea8 : SUCCESS in 3m 16s - openstack-tox-py37 https://zuul.opendev.org/t/openstack/build/a0fa5f70f8154c5f898c678398495953 : SUCCESS in 4m 39s