Add feature to post logs of failed builds

[happysalada]

First of all, thank you for the great package!

I realise you are busy and so this is not a request but a mere suggestion.
In a lot of reviews you can see failed builds, however, the logs are missing, so no way to know the failures except run the build yourself. I was wondering if there was a feature to post the logs for failed builds so that the maintainer can have a clue for a fix (if it's for a platform where it's hard for him to test, linux if he is on darwin and vice-versa).

I couldn't find an issue related, so just thought I would suggest it.
Feel free to close this if you think it's inappropriate.

[Mic92]

This is solved here: #187

[Artturin]

This would be really useful

[Artturin]

https://matrix.to/#/!lheuhImcToQZYTQTuI:nixos.org/$YYQcW8w7qeA6-KlzCBxx6siKyCuYwY2IYr7fOfq6gSA?via=matrix.org&via=mtr.ceph3.us&via=nixos.dev