From 7336312b0b946a7ccf08e3acedd37f47669af8d0 Mon Sep 17 00:00:00 2001
From: Jason Simmons <jason-simmons@users.noreply.github.com>
Date: Thu, 15 Dec 2022 17:57:14 -0800
Subject: [PATCH] Do not filter the stderr output of "flutter run" in the
 devicelab run tests (#117188)

---
 dev/devicelab/lib/tasks/run_tests.dart | 10 +++++-----
 1 file changed, 5 insertions(+), 5 deletions(-)

diff --git a/dev/devicelab/lib/tasks/run_tests.dart b/dev/devicelab/lib/tasks/run_tests.dart
index 5c0955f4334..5898db4325e 100644
--- a/dev/devicelab/lib/tasks/run_tests.dart
+++ b/dev/devicelab/lib/tasks/run_tests.dart
@@ -244,14 +244,14 @@ abstract class RunOutputTask {
             ready.complete();
           }
         });
-      run.stderr
+      final Stream<String> runStderr = run.stderr
         .transform<String>(utf8.decoder)
         .transform<String>(const LineSplitter())
+        .asBroadcastStream();
+      runStderr.listen((String line) => print('run:stderr: $line'));
+      runStderr
         .skipWhile(isExpectedStderr)
-        .listen((String line) {
-          print('run:stderr: $line');
-          stderr.add(line);
-        });
+        .listen((String line) => stderr.add(line));
       unawaited(run.exitCode.then<void>((int exitCode) { runExitCode = exitCode; }));
       await Future.any<dynamic>(<Future<dynamic>>[ ready.future, run.exitCode ]);
       if (runExitCode != null) {