Can't build cowsay example

When trying to replicate your example with cowsay:
```toml
[package]
name = "cowsay"
script = "cowsay"
```

I'm getting following error:
<img width="1748" height="286" alt="Image" src="https://github.com/user-attachments/assets/f5923517-617c-41ff-a417-33f79837ff60" />

