Build failed. https://zuul.opendev.org/t/openstack/buildset/60a4a614d31c4b6caa6a50e376594273 - openstack-tox-docs https://zuul.opendev.org/t/openstack/build/9dbc9d996f534ee8aa49f9e7920ba4cf : SUCCESS in 3m 11s - openstack-tox-py27 https://zuul.opendev.org/t/openstack/build/fa5db6a672b24274a0c560f1340c0c0b : FAILURE in 3m 25s - openstack-tox-py36 https://zuul.opendev.org/t/openstack/build/a7e87945f36342aab58b5ad01e88f3c6 : SUCCESS in 2m 45s - openstack-tox-py37 https://zuul.opendev.org/t/openstack/build/a5631bce39224de9862f1fea0e3031b4 : FAILURE in 3m 54s