bug#44370: Cuirass fails building (some) packages from a custom-packages input

[Mathieu Othacehe]

Hello David,

> ice-9/boot-9.scm:1667:16: In procedure raise-exception:
> ERROR:
>   1. &evaluation-error:
>       name: "my-pkgs"
>       id:

Thanks for the bug report. Could you please send the associated log
trace in /var/log/cuirass/evaluations/xxx.gz?

Mathieu