Build failed. https://zuul.opendev.org/t/openstack/buildset/ff2dfc0d49dc4ed2adfc6dada1a85962 - openstack-tox-docs https://zuul.opendev.org/t/openstack/build/c119c61351ad4ab7bef3c5b79d4a01bb : SUCCESS in 3m 52s - openstack-tox-py27 https://zuul.opendev.org/t/openstack/build/b01de33dfa374d30bd2a996f00534d3b : FAILURE in 3m 16s - openstack-tox-py36 https://zuul.opendev.org/t/openstack/build/94fea5f19968449781e0328ec418f055 : SUCCESS in 4m 27s - openstack-tox-py37 https://zuul.opendev.org/t/openstack/build/cad396968fdb444d931c6de92d594de4 : SUCCESS in 3m 35s