slightly improve logging

src/main.rs

@@ -247,13 +247,12 @@ async fn main() {
                     method = ?request.method(),
                     path = ?request.uri().path(),
                     matched_path,
-                    some_other_field = tracing::field::Empty,
                 )
             })
             .on_response(|response: &Response<_>, duration: Duration, span: &Span| {
                 let _ = span.enter();
                 let status = response.status();
-                info!(?status, ?duration);
+                info!(?status, ?duration, "response");
             }),
     );