Build failed. https://zuul.opendev.org/t/openstack/buildset/1f18663344c544408acb2d7a2c8dad8a - openstack-tox-docs https://zuul.opendev.org/t/openstack/build/69e30e90dcfe42f895e7084a51a33d44 : SUCCESS in 4m 35s - openstack-tox-py27 https://zuul.opendev.org/t/openstack/build/bcadbc4dc38c4681a39d701604dd22de : SUCCESS in 4m 54s - openstack-tox-py36 https://zuul.opendev.org/t/openstack/build/62fe96284dd84cf6939a2fd48da4519b : SUCCESS in 3m 58s - openstack-tox-py37 https://zuul.opendev.org/t/openstack/build/8d3de24329f14459a2414e1a3aaeea84 : FAILURE in 4m 17s