Build failed. https://zuul.opendev.org/t/openstack/buildset/11ed5b68d1de4787a66bca04560a1a77 - openstack-tox-docs https://zuul.opendev.org/t/openstack/build/db49d2d72056427c9a30ae9c3f4a5436 : SUCCESS in 4m 23s - openstack-tox-py27 https://zuul.opendev.org/t/openstack/build/d8f47c02a19849e381618956860a25ce : SUCCESS in 4m 04s - openstack-tox-py36 https://zuul.opendev.org/t/openstack/build/eb36aba977af4e79becd7b866bab44c8 : FAILURE in 3m 15s - openstack-tox-py37 https://zuul.opendev.org/t/openstack/build/06f9ed7cbdaf4dddbffb1456c81eeac8 : FAILURE in 3m 04s