Build failed. https://zuul.opendev.org/t/openstack/buildset/9ad677c3920e4594b2b8e8e7cc9f4b86 - openstack-tox-docs https://zuul.opendev.org/t/openstack/build/a669574355ea48f8b50cbf037807f0d3 : FAILURE in 7m 48s - openstack-tox-py27 https://zuul.opendev.org/t/openstack/build/adc684f5dba14f009882978784909757 : SUCCESS in 5m 10s - openstack-tox-py36 https://zuul.opendev.org/t/openstack/build/be4d5b28fcaa45b1a934d927bbb0e9a1 : SUCCESS in 4m 53s - openstack-tox-py37 https://zuul.opendev.org/t/openstack/build/0e3d8ad0be014e75b2563a308223a15c : SUCCESS in 7m 33s