DRC report not being generated when PCB has DRC issues

[leoheck]

Hi, first of all, thank you for this tool. It is awesome!

I am running it on a container with CI.
I made a simple DRC error by overlapping 2 components.
Kiplot is reporting it but the report is not being generated.

I am using it like:

kiplot -c board.yml -d outputs -s update_xml,run_erc -i

This output folder was not generated when board has DRC issues.