Build failed. https://zuul.opendev.org/t/openstack/buildset/a272a77abb0a4ec99d93794c52fc486b - openstack-tox-docs https://zuul.opendev.org/t/openstack/build/d3a0d43cb9cd431fb806e016c9e7e98c : FAILURE in 3m 38s - openstack-tox-py27 https://zuul.opendev.org/t/openstack/build/943db0c78aef4b7fabaaa20c1fa7a2ae : SUCCESS in 3m 23s - openstack-tox-py36 https://zuul.opendev.org/t/openstack/build/5aa7d4d7e1654c9aa1c53e41f3bf2a29 : SUCCESS in 4m 16s - openstack-tox-py37 https://zuul.opendev.org/t/openstack/build/97c352b4548a4b0b89420f1801ca0728 : SUCCESS in 3m 57s