Build failed. https://zuul.opendev.org/t/openstack/buildset/459ae91265b146d892e1ad91e0c5741e - openstack-tox-docs https://zuul.opendev.org/t/openstack/build/c074ba91f1c04c938c173c3aaa1c8def : SUCCESS in 2m 48s - openstack-tox-py27 https://zuul.opendev.org/t/openstack/build/f5fa4f17fecd4c3f89b22e4e64813599 : SUCCESS in 3m 09s - openstack-tox-py36 https://zuul.opendev.org/t/openstack/build/99d33063b0fd45ebbfd4a37f9ea3722b : FAILURE in 2m 36s - openstack-tox-py37 https://zuul.opendev.org/t/openstack/build/4d48f2a5c3e145d4aca33ebefa59cc77 : FAILURE in 3m 06s