Uses rpc's client_error::Error::kind() in more places

client/src/send_and_confirm_transactions_in_parallel.rs

@@ -280,7 +280,7 @@ async fn send_transaction_with_rpc_fallback(
             )
             .await
         {
-            match &e.kind {
+            match e.kind() {
                 ErrorKind::Io(_) | ErrorKind::Reqwest(_) => {
                     // fall through on io error, we will retry the transaction
                 }

rpc-client/src/nonblocking/rpc_client.rs

@@ -993,7 +993,7 @@ impl RpcClient {
                     code,
                     message,
                     data,
-                }) = &err.kind
+                }) = err.kind()
                 {
                     debug!("{} {}", code, message);
                     if let RpcResponseErrorData::SendTransactionPreflightFailure(

rpc-test/tests/rpc.rs

@@ -570,7 +570,7 @@ fn deserialize_rpc_error() -> ClientResult<()> {
     let err = rpc_client.send_transaction(&tx);
     let err = err.unwrap_err();
 
-    match err.kind {
+    match err.kind() {
         ClientErrorKind::RpcError(RpcError::RpcRequestError { .. }) => {
             // This is what used to happen
             panic!()

tpu-client/src/nonblocking/tpu_client.rs

@@ -1006,7 +1006,7 @@ async fn maybe_fetch_cache_info(
 
 fn is_invalid_slot_range_error(client_error: &ClientError) -> bool {
     if let ErrorKind::RpcError(RpcError::RpcResponseError { code, message, .. }) =
-        &client_error.kind
+        client_error.kind()
     {
         return *code == -32602
             && message.contains("Invalid slot range: leader schedule for epoch");

validator/src/dashboard.rs

@@ -278,7 +278,7 @@ fn get_validator_stats(
                     request::RpcResponseErrorData::NodeUnhealthy {
                         num_slots_behind: Some(num_slots_behind),
                     },
-            }) = &err.kind
+            }) = err.kind()
             {
                 format!("{num_slots_behind} slots behind")
             } else {