Build failed. https://zuul.opendev.org/t/openstack/buildset/0ab04f824b7f4494b23d45bc64f2a759 - openstack-tox-docs https://zuul.opendev.org/t/openstack/build/7accaec6c6ae4c02aa3dd616c356ede5 : SUCCESS in 3m 34s - openstack-tox-py27 https://zuul.opendev.org/t/openstack/build/f41d5700e8934f7cb601e8c428f181a8 : FAILURE in 3m 14s - openstack-tox-py36 https://zuul.opendev.org/t/openstack/build/2987040527a3492794fa6ea8df2299aa : SUCCESS in 3m 52s - openstack-tox-py37 https://zuul.opendev.org/t/openstack/build/be4aebb4c24c42f199ac9b7fcd136db8 : SUCCESS in 3m 43s