#[macro_use]
extern crate serde_json; // 1.0.38
use std::panic::catch_unwind;

fn main() {
    let c = || serde_json::from_value::<i32>(json!({
        "a": 1
    }));

    let out = if let Ok(e) = catch_unwind(c) {
        println!("no panic");
        e
    } else {
        println!("oh panic");
        c()
    };

    println!("{:?}", out);
}