chore: add some traces (#1622)

* chore: add some traces

* Update ethers-providers/src/transports/ws.rs

Co-authored-by: Georgios Konstantopoulos <me@gakonst.com>

ethers-providers/src/pubsub.rs

@@ -12,6 +12,7 @@ use std::{
     pin::Pin,
     task::{Context, Poll},
 };
+use tracing::error;
 
 /// A transport implementation supporting pub sub subscriptions.
 pub trait PubsubClient: JsonRpcClient {
@@ -90,7 +91,10 @@ where
         match futures_util::ready!(this.rx.poll_next(ctx)) {
             Some(item) => match serde_json::from_str(item.get()) {
                 Ok(res) => Poll::Ready(Some(res)),
-                _ => Poll::Pending,
+                Err(err) => {
+                    error!("failed to deserialize item {:?}", err);
+                    Poll::Pending
+                }
             },
             None => Poll::Ready(None),
         }

ethers-providers/src/transports/ws.rs

@@ -22,6 +22,7 @@ use std::{
     },
 };
 use thiserror::Error;
+use tracing::trace;
 
 use super::common::{Params, Response};
 
@@ -317,6 +318,7 @@ where
     }
 
     async fn handle_text(&mut self, inner: String) -> Result<(), ClientError> {
+        trace!(msg=?inner, "received message");
         let (id, result) = match serde_json::from_str(&inner)? {
             Response::Success { id, result } => (id, Ok(result.to_owned())),
             Response::Error { id, error } => (id, Err(error)),