Build failed. https://zuul.opendev.org/t/openstack/buildset/8a25a4e0eca54ec7802b58557af78d7a - openstack-tox-docs https://zuul.opendev.org/t/openstack/build/6a6e081f6e09440790740b2253acab84 : SUCCESS in 3m 20s - openstack-tox-py27 https://zuul.opendev.org/t/openstack/build/ab8843337a82469895cd6b210d465d41 : FAILURE in 4m 01s - openstack-tox-py36 https://zuul.opendev.org/t/openstack/build/edce7a7d89094b1a82f4c644b210e4f5 : SUCCESS in 3m 55s - openstack-tox-py37 https://zuul.opendev.org/t/openstack/build/2818396c80484da0a6e0f6de8169c58b : SUCCESS in 9m 59s