Build failed. https://zuul.opendev.org/t/openstack/buildset/09ddfab1a3c64ebeb96b8b741556e6db - openstack-tox-docs https://zuul.opendev.org/t/openstack/build/c74b599f047847ddbffe20410a538042 : SUCCESS in 3m 54s - openstack-tox-py27 https://zuul.opendev.org/t/openstack/build/9a642bbef1384b63a053fd938e4c12db : FAILURE in 2m 41s - openstack-tox-py36 https://zuul.opendev.org/t/openstack/build/a437ebed3ce549519460b9b3d566bf85 : SUCCESS in 4m 00s - openstack-tox-py37 https://zuul.opendev.org/t/openstack/build/b4814407ec534e77a7633d4358117f4c : SUCCESS in 4m 23s