Build failed. https://zuul.opendev.org/t/openstack/buildset/4014420dd6a54051a0d24614b70f17dd - openstack-tox-docs https://zuul.opendev.org/t/openstack/build/7a7656ae38b04961bf4338d5e5198007 : SUCCESS in 4m 46s - openstack-tox-py27 https://zuul.opendev.org/t/openstack/build/c1071defb63f4cc892c44e33be89b818 : SUCCESS in 4m 01s - openstack-tox-py36 https://zuul.opendev.org/t/openstack/build/c47ebeac3f4d4672b33c736f70c192ce : SUCCESS in 4m 03s - openstack-tox-py37 https://zuul.opendev.org/t/openstack/build/08f3155d485c49f9a3cbfffc2986c06d : FAILURE in 3m 02s