Build failed. https://zuul.opendev.org/t/openstack/buildset/39067f4ed68e469390dc7dd55bf735f4 - openstack-tox-docs https://zuul.opendev.org/t/openstack/build/fd27d9a7312742d58e90eac799347ab5 : SUCCESS in 4m 52s - openstack-tox-py27 https://zuul.opendev.org/t/openstack/build/7cd2dd5e86c44b7bbadc5e6eb1e7e956 : SUCCESS in 3m 03s - openstack-tox-py36 https://zuul.opendev.org/t/openstack/build/4f20d1c091834944a0bb9889b85a9d4f : SUCCESS in 3m 05s - openstack-tox-py37 https://zuul.opendev.org/t/openstack/build/969b494617ca4a9ea1215fea8925c392 : FAILURE in 2m 32s