Build failed. https://zuul.opendev.org/t/openstack/buildset/83c71a5366f14eceb2dd9399a68c5ced - openstack-tox-docs https://zuul.opendev.org/t/openstack/build/6dd5b615124d40ebac2b8a22f3461554 : SUCCESS in 3m 06s - openstack-tox-py27 https://zuul.opendev.org/t/openstack/build/c10937fe45cc46f1bd22748b9c12970c : FAILURE in 2m 38s - openstack-tox-py36 https://zuul.opendev.org/t/openstack/build/3d2f8bbe614a49fa9cb15bdac37bd161 : SUCCESS in 4m 48s - openstack-tox-py37 https://zuul.opendev.org/t/openstack/build/973b9397993e4765b63681ad9a0424b0 : FAILURE in 3m 08s