Error monitor should emit error to stderr instead of stdout

rust-lang · Oct 10, 2016 · 4df0f3f · 4df0f3f
1 parent 9d4d0da
commit 4df0f3f
Showing 1 changed file with 1 addition and 1 deletion.
diff --git a/src/librustc_driver/lib.rs b/src/librustc_driver/lib.rs
@@ -1110,7 +1110,7 @@ pub fn monitor<F: FnOnce() + Send + 'static>(f: F) {
                              errors::Level::Note);
             }
 
-            println!("{}", str::from_utf8(&data.lock().unwrap()).unwrap());
+            writeln!(io::stderr(), "{}", str::from_utf8(&data.lock().unwrap()).unwrap()).unwrap();
         }
 
         exit_on_err();