Build failed. https://zuul.opendev.org/t/openstack/buildset/d526198a03d44372912addf71ed9b358 - openstack-tox-docs https://zuul.opendev.org/t/openstack/build/726add88abd640ba9da17867ae72621d : SUCCESS in 4m 15s - openstack-tox-py27 https://zuul.opendev.org/t/openstack/build/554fb6c9a2264e8b9927482262d3145b : SUCCESS in 5m 02s - openstack-tox-py36 https://zuul.opendev.org/t/openstack/build/e675d5d978274fe9be663917f673aef9 : SUCCESS in 4m 36s - openstack-tox-py37 https://zuul.opendev.org/t/openstack/build/e2d1519435a341c3bbfc508f2ff676a4 : FAILURE in 4m 52s