Build failed. https://zuul.opendev.org/t/openstack/buildset/e26b4ab06ca740a3ba78f1ebf84562a6 - openstack-tox-docs https://zuul.opendev.org/t/openstack/build/3a26f373c9e041f7b3854abccba687ef : SUCCESS in 4m 41s - openstack-tox-py27 https://zuul.opendev.org/t/openstack/build/848c0ee5d892458ebebe9184750e08a9 : SUCCESS in 4m 41s - openstack-tox-py36 https://zuul.opendev.org/t/openstack/build/b41d0b014563443ea6035dac62acd634 : SUCCESS in 4m 52s - openstack-tox-py37 https://zuul.opendev.org/t/openstack/build/18e07f97ea1e40558086f29b1b23240a : FAILURE in 4m 46s