Build failed. https://zuul.opendev.org/t/openstack/buildset/3209ffcd01d747dea7a5dcf088384bd9 - openstack-tox-docs https://zuul.opendev.org/t/openstack/build/f32f848ca1cd4ad69798fe227730e1a0 : SUCCESS in 3m 11s - openstack-tox-py27 https://zuul.opendev.org/t/openstack/build/aa8fb2c7f22746afb6804a947743ea1c : SUCCESS in 3m 05s - openstack-tox-py36 https://zuul.opendev.org/t/openstack/build/f39188c82b554e6a8c72a78486eed8ba : FAILURE in 3m 00s - openstack-tox-py37 https://zuul.opendev.org/t/openstack/build/bce121066a0949e081599eaba25c89f8 : FAILURE in 2m 53s