Build failed. https://zuul.opendev.org/t/openstack/buildset/28521cfafb2d4cc0a9d6f38adddaeca7 - openstack-tox-docs https://zuul.opendev.org/t/openstack/build/ee7e7e8d4c9a4dedad9577008a4a153c : SUCCESS in 2m 57s - openstack-tox-py27 https://zuul.opendev.org/t/openstack/build/6fe910afdea74ab8a7edf34b15e57f74 : SUCCESS in 3m 35s - openstack-tox-py36 https://zuul.opendev.org/t/openstack/build/696c9f7315634b44a7aebdb977a3962c : FAILURE in 3m 48s - openstack-tox-py37 https://zuul.opendev.org/t/openstack/build/c710fecfa4084d07b211223a8dbe499e : FAILURE in 5m 47s