Build failed. https://zuul.opendev.org/t/openstack/buildset/d67b58518ae64ddcbfb5898ec561d34b - openstack-tox-docs https://zuul.opendev.org/t/openstack/build/a63e7732704041648df37ac24f1e2c6f : FAILURE in 6m 04s - openstack-tox-py27 https://zuul.opendev.org/t/openstack/build/5c04091a308146c3b213b98b0688c8b2 : SUCCESS in 5m 36s - openstack-tox-py36 https://zuul.opendev.org/t/openstack/build/b0a37eb2abaf47de889bb25f138c443e : SUCCESS in 6m 49s - openstack-tox-py37 https://zuul.opendev.org/t/openstack/build/5a5c2c05c0244444aa3ea3ddbb6929d4 : SUCCESS in 6m 26s