L2: integrate the no_panic crate

[fborello-lambda]

The no_panic crate detects if a function panics in the linking process.

Things to consider:

• async functions aren't compatible with the#[no_panic] macro.
  Use case Example:
  In crates/l2/l1_committer.rs

use no_panic::no_panic;
//[...]
    #[no_panic]
    pub fn get_deposit_hash(&self, deposit_hashes: Vec<H256>) -> Result<H256, CommitterError> {
        let s = "\u{1f980}input string";
        let c = &s[1..];
        println!("{c}");
//[...]

Then if we build the program:

cargo build --release --manifest-path ../../Cargo.toml --bin ethrex --features l2

it should output:

 ERROR[no-panic]: detected panic in function `get_deposit_hash`

Task to perform: Ideally, we should use the #[no_panic] macro in every non-async function. Then fix all the compilation errors.

Note

For the async functions, we are handling the errors with a loop for each component (the run function). We may want a catch_unwind as follows:

fn safe_execute<F: FnOnce() -> T, T>(f: F) -> Result<T, Box<dyn std::any::Any + Send>> {
    panic::catch_unwind(panic::AssertUnwindSafe(f))
}

fn main() {
    let result = safe_execute(|| {
        let v = vec![1, 2, 3];
        v[5] // This panics
    });

    match result {
        Ok(_) => (),
        Err(e) => error!("CATCH panic {e:?}"),
    }
}