Build failed. https://zuul.opendev.org/t/openstack/buildset/c3cce50b0cf24eca8fa786ea0f7a7734 - openstack-tox-docs https://zuul.opendev.org/t/openstack/build/30fa3e63261a46a4b226ba442690eaee : SUCCESS in 4m 04s - openstack-tox-py27 https://zuul.opendev.org/t/openstack/build/40506996241549699ce5e7d6c24e0b8c : SUCCESS in 3m 10s - openstack-tox-py36 https://zuul.opendev.org/t/openstack/build/bbfa0090354745d4ae6e28e39eabd8bc : SUCCESS in 3m 30s - openstack-tox-py37 https://zuul.opendev.org/t/openstack/build/0bf9969285c045b2ad9cfe313225d025 : FAILURE in 3m 36s