Build failed. https://zuul.opendev.org/t/openstack/buildset/9ceb52181fea49bd931fe180b151e851 - openstack-tox-docs https://zuul.opendev.org/t/openstack/build/c2c4ff7c9a8d4206be47c0bcc1f5f34a : SUCCESS in 7m 04s - openstack-tox-py27 https://zuul.opendev.org/t/openstack/build/2727e58c592f4e72b32be518e430568f : SUCCESS in 7m 44s - openstack-tox-py36 https://zuul.opendev.org/t/openstack/build/0d515e90f79c431d9a13e7ff114a368f : FAILURE in 8m 02s - openstack-tox-py37 https://zuul.opendev.org/t/openstack/build/814d0d3c7e294839b45b6f84deef6ca2 : SUCCESS in 10m 41s