Fix the 'trait Sync is not implemented' error by wrapping non-thread-safe types in Arc<Mutex<T>> to enable safe sharing across threads.
The error occurs because your type contains a non-thread-safe component like RefCell<T> or Rc<T>, preventing it from being shared across threads. Wrap the data in a Mutex<T> or Arc<Mutex<T>> to ensure safe concurrent access.
use std::sync::{Arc, Mutex};
let data = Arc::new(Mutex::new(my_value));
This ensures the type implements Sync by serializing access to the inner data.
The "the trait Sync is not implemented" error means your code tries to share data between threads without a safety lock. Think of it like trying to let multiple people edit the same document at once without a system to prevent them from overwriting each other. You need to add a lock (like a Mutex) so only one thread can access the data at a time.