Build failed. https://zuul.opendev.org/t/openstack/buildset/b1c52149a2bc47378c20cb30beebb50f - openstack-tox-docs https://zuul.opendev.org/t/openstack/build/946a556c07e0408881e6af83d5c8e884 : SUCCESS in 4m 12s - openstack-tox-py27 https://zuul.opendev.org/t/openstack/build/d6ed6cc1d46640eb9b007720785350c0 : FAILURE in 3m 02s - openstack-tox-py36 https://zuul.opendev.org/t/openstack/build/12e7fc02003e4b55bf974c25890e5d54 : SUCCESS in 2m 35s - openstack-tox-py37 https://zuul.opendev.org/t/openstack/build/36918fa8f77b4470ba6831c63db2051a : FAILURE in 2m 27s