Build failed. https://zuul.opendev.org/t/openstack/buildset/212662aed23a4b729bb6fd91fcb2a6e7 - openstack-tox-docs https://zuul.opendev.org/t/openstack/build/bd179356087b45638bd7ac72996a49df : FAILURE in 7m 08s - openstack-tox-py27 https://zuul.opendev.org/t/openstack/build/e65237930263481683466215c6c9c325 : SUCCESS in 6m 29s - openstack-tox-py36 https://zuul.opendev.org/t/openstack/build/611a29aa6e2c41d8b7802ec61fafd47b : SUCCESS in 5m 58s - openstack-tox-py37 https://zuul.opendev.org/t/openstack/build/d50b02bbba1947f78be170dac25d5301 : SUCCESS in 8m 16s