Build failed. https://zuul.opendev.org/t/openstack/buildset/9d38290d89eb450795e707ca57f160b6 - openstack-tox-docs https://zuul.opendev.org/t/openstack/build/9b4985cb243e4a36a7ca6ab9ea2692b5 : SUCCESS in 2m 51s - openstack-tox-py27 https://zuul.opendev.org/t/openstack/build/b95b4c6413e046b1b1985bac4db822bc : FAILURE in 2m 54s - openstack-tox-py36 https://zuul.opendev.org/t/openstack/build/b1a8f2a3497a47a49c41c51f989a6437 : FAILURE in 3m 08s - openstack-tox-py37 https://zuul.opendev.org/t/openstack/build/1ca84fe1c3a94ad2aaeb16a997b21040 : FAILURE in 2m 45s