Build failed. https://zuul.opendev.org/t/openstack/buildset/c10c764154414da4842f5983738b442c - openstack-tox-docs https://zuul.opendev.org/t/openstack/build/3f47becd3fad4ab78f6f2254f39b5711 : SUCCESS in 3m 33s - openstack-tox-py27 https://zuul.opendev.org/t/openstack/build/ec173b3ad18e48b4ba6ecd7d0f3c24ee : SUCCESS in 4m 23s - openstack-tox-py36 https://zuul.opendev.org/t/openstack/build/797a0179e4c64194a8289899a9819be2 : FAILURE in 3m 36s - openstack-tox-py37 https://zuul.opendev.org/t/openstack/build/d664de7f4d0d415eb896f9c46fe9c98a : FAILURE in 4m 27s