Build failed. https://zuul.opendev.org/t/openstack/buildset/edb8b3d410144077bdfd16ccb73a9534 - openstack-tox-docs https://zuul.opendev.org/t/openstack/build/c5ee35223ce44039ac81fec87ceb4485 : SUCCESS in 4m 29s - openstack-tox-py27 https://zuul.opendev.org/t/openstack/build/0b8b8a7b46054c82a789805fae49d075 : FAILURE in 3m 06s - openstack-tox-py36 https://zuul.opendev.org/t/openstack/build/d05cc5a492db4445a8c41600bd55e4fb : SUCCESS in 3m 33s - openstack-tox-py37 https://zuul.opendev.org/t/openstack/build/58850b4f7a3a4f32af2e6e8b8103dd2d : SUCCESS in 3m 47s