Function catch_traps 

pub unsafe fn catch_traps<F, R>(
    trap_handler: Option<*const dyn Fn(i32, *const siginfo_t, *const c_void) -> bool + Sync + Send>,
    config: &VMConfig,
    closure: F,
) -> Result<R, Trap>
where
    R: 'static,
    F: FnOnce() -> R + 'static,

Catches any wasm traps that happen within the execution of closure, returning them as a Result.

Safety

Highly unsafe since closure won’t have any dtors run.