Turbopack: wait for tracing to be written before exiting

Author: sokra

crates/napi/src/next_api/project.rs

@@ -374,7 +374,9 @@ pub async fn project_new(
         let subscriber = subscriber.with(RawTraceLayer::new(trace_writer));
 
         exit.on_exit(async move {
-            tokio::task::spawn_blocking(move || drop(trace_writer_guard));
+            tokio::task::spawn_blocking(move || drop(trace_writer_guard))
+                .await
+                .unwrap();
         });
 
         let trace_server = std::env::var("NEXT_TURBOPACK_TRACE_SERVER").ok();