Do not shutdown on request panic. Fix returned error format in body.

src/server/error.rs

@@ -93,7 +93,7 @@ impl IntoResponse for Error {
         let status_code = self.to_status_code();
 
         let body = if let Self::Other(err) = self {
-            format!("{err:?}")
+            format!("{err}")
         } else {
             self.to_string()
         };

src/server/mod.rs

@@ -142,9 +142,7 @@ pub async fn run(app: Arc<App>, config: ServerConfig, shutdown: Shutdown) -> any
 }
 
 #[derive(Clone)]
-struct PanicHandler {
-    shutdown: Shutdown,
-}
+struct PanicHandler {}
 
 impl ResponseForPanic for PanicHandler {
     type ResponseBody = Body;
@@ -154,20 +152,13 @@ impl ResponseForPanic for PanicHandler {
         error: Box<dyn std::any::Any + Send + 'static>,
     ) -> hyper::Response<Self::ResponseBody> {
         tracing::error!(?error, "request panicked");
-        self.shutdown.clone().shutdown();
         hyper::Response::builder()
             .status(StatusCode::INTERNAL_SERVER_ERROR)
             .body(Body::empty())
             .unwrap()
     }
 }
 
-impl From<Shutdown> for PanicHandler {
-    fn from(shutdown: Shutdown) -> Self {
-        Self { shutdown }
-    }
-}
-
 /// # Errors
 ///
 /// Will return `Err` if the provided `listener` address cannot be accessed or
@@ -194,9 +185,7 @@ pub async fn bind_from_listener(
         .layer(middleware::from_fn(
             custom_middleware::api_metrics_layer::middleware,
         ))
-        .layer(CatchPanicLayer::custom(PanicHandler {
-            shutdown: shutdown.clone(),
-        }))
+        .layer(CatchPanicLayer::custom(PanicHandler {}))
         .layer(middleware::from_fn_with_state(
             serve_timeout,
             custom_middleware::timeout_layer::middleware,