Le sigh. "I don't wrap errors and so I don't know where my errors come from."

The code that justifies the special context handling:

    if err := chargePayment(ctx, orderID); err != nil {
        cancel(fmt.Errorf(
            "order %s: payment failed: %w", orderID, err,
        ))
        return err
    }

Why not simply wrap that error with the same information?