Sam

There is unexpected behavior in the `contention/bounded_full` benchmark in `benches/sync_mpsc.rs`. Occasionally, tx.send() fails with `SendError`, and the sender reports as closed. However, `recv()` never appears to return None. Further investigation...

Thanks for the comment @mox692 👍 That's a good point. A few things come to mind: 1. `Peekable::peek` requires mutable access, whereas the proposed `Receiver::peek` only requires `&self`. This is...

The naming could be better for "fundamental error". I used that term to describe errors which indicate a 'fundamental' issue with the JWT or cryptographic key config e.g. InvalidKeyFormat, InvalidToken...

Sure, but fact that it wraps a 3rd-party error doesn't change how callers should treat it, imo. It's still in the "non-validation" bucket