[josephg]

Ah thanks for the clarification. That wasn’t clear to me reading your comment.

You’re right that rust forces you to explicitly decide what to do with Result::Err. But that’s exactly what we see here. .unwrap() is handling the error case explicitly. It says “if this is an error, crash the program. Otherwise give me the value”. It’s a very useful function that was used correctly here. And it functioned correctly by crashing the program.

I don’t see the problem in this code, beyond it not giving a good error message as it crashed. As the old joke goes, “Task failed successfully.”