Build failed. https://zuul.opendev.org/t/openstack/buildset/9782ace91ccb46699231df402aca3d2f - openstack-tox-docs https://zuul.opendev.org/t/openstack/build/5e0f537c44e1496088b15f64957f1a24 : FAILURE in 3m 59s - openstack-tox-py27 https://zuul.opendev.org/t/openstack/build/41119c7c1582419eb5f077e52b8849fb : FAILURE in 4m 46s - openstack-tox-py36 https://zuul.opendev.org/t/openstack/build/e969673a95a04e13a0d52670c6aab5cf : FAILURE in 4m 28s - openstack-tox-py37 https://zuul.opendev.org/t/openstack/build/895449d732164ebfaca0e39591fdf253 : FAILURE in 4m 14s