Fix warnings: dyn

parity-clib/src/lib.rs

@@ -266,7 +266,11 @@ pub unsafe extern "C" fn parity_set_logger(
 }
 
 // WebSocket event loop
-fn parity_ws_worker(client: &RunningClient, query: &str, callback: Arc<Callback>) -> *const c_void {
+fn parity_ws_worker(
+    client: &RunningClient,
+    query: &str,
+    callback: Arc<dyn Callback>,
+) -> *const c_void {
     let (tx, mut rx) = mpsc::channel(1);
     let session = Arc::new(PubSubSession::new(tx));
     let query_future = client.rpc_query(query, Some(session.clone()));
@@ -304,7 +308,7 @@ fn parity_ws_worker(client: &RunningClient, query: &str, callback: Arc<Callback>
 fn parity_rpc_worker(
     client: &RunningClient,
     query: &str,
-    callback: Arc<Callback>,
+    callback: Arc<dyn Callback>,
     timeout_ms: u64,
 ) {
     let cb = callback.clone();