diff --git a/packages/game-simulation/src/worker.ts b/packages/game-simulation/src/worker.ts
index 655622e..75f7ffb 100644
--- a/packages/game-simulation/src/worker.ts
+++ b/packages/game-simulation/src/worker.ts
@@ -59,4 +59,3 @@ const output = {
 };
 
 process.stdout.write(JSON.stringify(output));
-process.stderr.write(`[Run #${runId}] Done in ${(result.wallTimeMs / 1000).toFixed(1)}s — ${report.passed ? 'PASSED' : 'FAILED'}\n`);