Build failed. https://zuul.opendev.org/t/openstack/buildset/50ccb48c552745a0af599b47d95492cb - openstack-tox-docs https://zuul.opendev.org/t/openstack/build/5ed1b34a03254ea1be5102dc679bce9a : SUCCESS in 3m 16s - openstack-tox-py27 https://zuul.opendev.org/t/openstack/build/d21f926b0ec8489a9c5622b24ddf4b12 : SUCCESS in 6m 06s - openstack-tox-py36 https://zuul.opendev.org/t/openstack/build/acc6ea352d484583a9a605570b0d6edf : SUCCESS in 3m 14s - openstack-tox-py37 https://zuul.opendev.org/t/openstack/build/24114a1e64e347649e3423d2f554ee36 : FAILURE in 5m 34s