Build failed. https://zuul.opendev.org/t/openstack/buildset/326d2aed771b4fd6ab0c461a9ec67ca3 - openstack-tox-docs https://zuul.opendev.org/t/openstack/build/6fa95db09d544b7f96f44ecfaab0ac1d : SUCCESS in 3m 49s - openstack-tox-py27 https://zuul.opendev.org/t/openstack/build/a13a1533732042099adcaf09cd908109 : SUCCESS in 2m 54s - openstack-tox-py36 https://zuul.opendev.org/t/openstack/build/586dce0fa1bd4690ae53e948aad39ac9 : SUCCESS in 3m 33s - openstack-tox-py37 https://zuul.opendev.org/t/openstack/build/d43583f17f8243059f2e73f8ce2b1b01 : FAILURE in 3m 57s