In retrospect a half hour is a long time to wait to avoid threading contention

Author: MattGal

src/Microsoft.DotNet.Helix/Sdk/tools/azure-pipelines/reporter/run.py

@@ -146,7 +146,8 @@ def main():
             worker.daemon = True
             worker.start()
 
-        time.sleep(2000)
+        # https://github.com/dotnet/arcade/issues/7371 - trying to avoid contention for stdout
+        time.sleep(5)
         log.info("Beginning to read test results...")
 
         # In case the user puts the results in HELIX_WORKITEM_UPLOAD_ROOT for upload, check there too.