Build failed. https://zuul.opendev.org/t/openstack/buildset/b69fa61512ac405e914a927ca8f5aa2b - openstack-tox-docs https://zuul.opendev.org/t/openstack/build/f9c4c327be6141d5856ada333916497f : SUCCESS in 2m 47s - openstack-tox-py27 https://zuul.opendev.org/t/openstack/build/8538143cba5845ec80b9f55e8c5da1be : SUCCESS in 3m 02s - openstack-tox-py36 https://zuul.opendev.org/t/openstack/build/0dcd7ea922294df2bb8d94ce094405a2 : SUCCESS in 2m 55s - openstack-tox-py37 https://zuul.opendev.org/t/openstack/build/1afb24fb9da7442a8e4bfce6f8b3411b : FAILURE in 2m 54s