Minimal example for "Printing panics in Rust" blog post

print-panic.rs

use std::panic;

fn main() {
    let result = panic::catch_unwind(|| {
        panic!("Some nice cause for this panic".to_string());
    });

    if let Err(panic) = result {
        match panic.downcast::<String>() {
            Ok(panic_msg) => {
                println!("panic happened: {}", panic_msg);
            }
            Err(_) => {
                println!("panic happend: unknown type.");
            }
        }
    }
}