f refcell not mutex

Author: TheBlueMatt

lightning-invoice/src/payment.rs

@@ -1290,7 +1290,7 @@ mod tests {
 		route.paths[0][0].fee_msat = 50_000_000;
 		route.paths[1][0].fee_msat = 50_000_001;
 		routes.push_back(Ok(route.clone()));
-		let route_res = ManualRouter(Mutex::new(routes));
+		let route_res = ManualRouter(RefCell::new(routes));
 
 		let event_handled = core::cell::RefCell::new(false);
 		let event_handler = |_: &_| { *event_handled.borrow_mut() = true; };