fixed coord timeouts

src/coordinator.rs

@@ -113,7 +113,7 @@ pub async fn run_coordinator(
             }
             maybe_finished = handlers.join_next(), if !handlers.is_empty() => {
                 if let Some(join_result) = maybe_finished {
-                    join_result??;
+                    log_worker_result(join_result);
                 }
             }
         }
@@ -124,7 +124,7 @@ pub async fn run_coordinator(
     }
 
     while let Some(join_result) = handlers.join_next().await {
-        join_result??;
+        log_worker_result(join_result);
     }
 
     let duration = start.elapsed().as_secs_f64();
@@ -175,6 +175,14 @@ pub async fn run_coordinator(
     Ok(())
 }
 
+fn log_worker_result(result: std::result::Result<Result<()>, tokio::task::JoinError>) {
+    match result {
+        Ok(Ok(())) => {}
+        Ok(Err(err)) => eprintln!("worker handler ended with error: {err:#}"),
+        Err(err) => eprintln!("worker task failed: {err}"),
+    }
+}
+
 async fn handle_worker(
     stream: TcpStream,
     peer: std::net::SocketAddr,
@@ -194,7 +202,8 @@ async fn handle_worker(
     let worker_name = match lines.next_line().await? {
         Some(line) if line.starts_with("HELLO ") => line[6..].trim().to_string(),
         Some(line) => {
-            return Err(anyhow!("unexpected worker handshake from {peer}: {line}"));
+            eprintln!("rejected non-worker connection from {peer}: {line}");
+            return Ok(());
         }
         None => return Ok(()),
     };