I find 9 times out of 10, the source location of the panic (main.rs:123) is enough for debugging, and the .expect() text is redundant. I would never advocate .u

I find 9 times out of 10, the source location of the panic (main.rs:123) is enough for debugging, and the .expect() text is redundant. I would never advocate .unwrap() for production services where other people may have to debug the code years after you write it, but there are many, many other use cases for Rust.