Build failed. - openstack-tox-docs https://zuul.opendev.org/t/openstack/build/4ab08648f5d942a58a8ed5718a63aabf : SUCCESS in 6m 44s - openstack-tox-py27 https://zuul.opendev.org/t/openstack/build/4e0b6c1e1765417abaa1811a17e9bb60 : FAILURE in 5m 01s - openstack-tox-py36 https://zuul.opendev.org/t/openstack/build/dc45663f3eae4a3eb45f187ff0fe77a4 : SUCCESS in 4m 40s - openstack-tox-py37 https://zuul.opendev.org/t/openstack/build/957db14bfc684296b8a0fd6172ae7198 : SUCCESS in 4m 52s