Build failed. https://zuul.opendev.org/t/openstack/buildset/8528cf90e6e74b60bfe8b326b943e45b - openstack-tox-docs https://zuul.opendev.org/t/openstack/build/389db4f28cf94779beeb2a0797385d91 : SUCCESS in 4m 16s - openstack-tox-py27 https://zuul.opendev.org/t/openstack/build/4beab1bdf88e481bac8376def0378250 : FAILURE in 2m 55s - openstack-tox-py36 https://zuul.opendev.org/t/openstack/build/299a887f792f40ffbfdc8311f0d12766 : SUCCESS in 4m 11s - openstack-tox-py37 https://zuul.opendev.org/t/openstack/build/0fce3cc76e9b489bb87b3663cb2499e2 : FAILURE in 3m 35s