Build failed. https://zuul.opendev.org/t/openstack/buildset/c1041705581743418e543bf66e33679c - openstack-tox-docs https://zuul.opendev.org/t/openstack/build/7d39df8dd22d4bad93fc253e1fa414ae : SUCCESS in 3m 57s - openstack-tox-py27 https://zuul.opendev.org/t/openstack/build/1fd88f49ffcd4d0b8fa2821f2503b761 : FAILURE in 3m 31s - openstack-tox-py36 https://zuul.opendev.org/t/openstack/build/57b480cf90bc4987916ef3773ae328ab : SUCCESS in 2m 59s - openstack-tox-py37 https://zuul.opendev.org/t/openstack/build/5d5c822e46894548a70615f08a9a1978 : FAILURE in 3m 18s