Cumin has options --trace and --debug however it does not show any additional output, I am thus wondering what the options are for or where they log.
Inline doc has:
-d, --debug Set log level to DEBUG. [default: False] --trace Set log level to TRACE, a custom logging level intended for development debugging. [default: False]
Tested on integration-cumin.integration.eqiad.wmflabs which has cumin debian package 3.0.2-2