Build failed. https://zuul.opendev.org/t/openstack/buildset/388c2c374d524ec38aed11b2f4ec45b1 - openstack-tox-docs https://zuul.opendev.org/t/openstack/build/76fa9d05ead14c238ea0f1e343a7ceb2 : SUCCESS in 3m 04s - openstack-tox-py27 https://zuul.opendev.org/t/openstack/build/ab5e493931624226b1d4de29eb65c102 : SUCCESS in 3m 37s - openstack-tox-py36 https://zuul.opendev.org/t/openstack/build/afe1931dfdf04eaebb4b3142c69b00b3 : FAILURE in 3m 16s - openstack-tox-py37 https://zuul.opendev.org/t/openstack/build/4b4fb634782240fe946ef07a00878a81 : FAILURE in 3m 00s