Build failed. https://zuul.opendev.org/t/openstack/buildset/63f79562fc574996af54046e5d8d73e6 - openstack-tox-docs https://zuul.opendev.org/t/openstack/build/6b6037e2a752416aa0be75b461c48ed9 : SUCCESS in 3m 11s - openstack-tox-py27 https://zuul.opendev.org/t/openstack/build/c51b34cd47f54201897a73df2c5c7eca : SUCCESS in 4m 46s - openstack-tox-py36 https://zuul.opendev.org/t/openstack/build/6595bcebfb9c4b94949fa4fc901f2f95 : SUCCESS in 3m 19s - openstack-tox-py37 https://zuul.opendev.org/t/openstack/build/c5137d70588e45abaf7657bf72930e80 : FAILURE in 2m 23s