Remove rpc backtrace, resolve nervosnetwork#4698

Signed-off-by: Eval EXEC <[email protected]>

rpc/src/error.rs

@@ -153,15 +153,43 @@ impl RPCError {
         }
     }
 
+    /// Removes the backtrace portion from an error string.
+    ///
+    /// This function processes the input string `err_str` line by line and collects all lines
+    /// until it encounters a line starting with "Stack backtrace:". It then joins the collected
+    /// lines into a single string, effectively removing the backtrace section.
+    ///
+    /// # Arguments
+    /// * `err_str` - A string slice containing the error message, potentially including a backtrace.
+    ///
+    /// # Returns
+    /// * A `String` containing the error message without the backtrace.
+    ///
+    /// # Example
+    /// ```
+    /// let error_message = "Error: Something went wrong\nStack backtrace:\n1: some_function\n2: another_function";
+    /// let cleaned_message = remove_backtrace(error_message);
+    /// assert_eq!(cleaned_message, "Error: Something went wrong");
+    /// ```
+    fn remove_backtrace(err_str: &str) -> String {
+        let lines: Vec<_> = err_str
+            .lines()
+            .take_while(|line| !line.starts_with("Stack backtrace:"))
+            .collect();
+        lines.join("\n")
+    }
+
     /// Creates an RPC error from std error with the custom error code.
     ///
     /// The parameter `err` is usually an std error. The Display form is used as the error message,
     /// and the Debug form is used as the data.
     pub fn custom_with_error<T: Display + Debug>(error_code: RPCError, err: T) -> Error {
+        let err_str_with_backtrace = format!("{err:?}");
+        let err_str = Self::remove_backtrace(&err_str_with_backtrace);
         Error {
             code: ErrorCode::ServerError(error_code as i64),
             message: format!("{error_code:?}: {err}"),
-            data: Some(Value::String(format!("{err:?}"))),
+            data: Some(Value::String(err_str)),
         }
     }