Build failed. https://zuul.opendev.org/t/openstack/buildset/ca21802c50a8459aa2334221fdb84a8a - openstack-tox-docs https://zuul.opendev.org/t/openstack/build/02e56769c88b4009904d78bfb2c28a44 : FAILURE in 6m 45s - openstack-tox-py27 https://zuul.opendev.org/t/openstack/build/d84422d8fa944c999ae409443338bb01 : SUCCESS in 6m 36s - openstack-tox-py36 https://zuul.opendev.org/t/openstack/build/42796ba296b9436fa2fa80a89cfb3ee1 : SUCCESS in 5m 55s - openstack-tox-py37 https://zuul.opendev.org/t/openstack/build/22af4086b8fa4933b7f8952f88610e8d : SUCCESS in 6m 02s