diff --git a/lib/Projectrans/Phase2Translator.py b/lib/Projectrans/Phase2Translator.py
index 41c0315..4244ae4 100644
--- a/lib/Projectrans/Phase2Translator.py
+++ b/lib/Projectrans/Phase2Translator.py
@@ -768,11 +768,9 @@ def _parallel_translate_worker(src_path: str, out_path: str, src_root: str, temp
         trans._translate_file(src_path, out_path, prebuilt_ModuleSha1Map=prebuilt_ModuleSha1Map, dwarf_enabled=dwarf_enabled)
         return ('ok', src_path, '')
     except Exception as e:
-        # fail-fast（2026-08-18）：include 文件编译出错立即终止整个编译进程
-        # （主进程收到 BrokenProcessPool 后取消剩余任务退出）。
+        # fail-fast：只输出单行错误（含源码定位），不打印 Python 内部调用栈
         sys.stderr.write(
-            f"[FATAL] include 翻译失败，立即终止编译: {src_path}\n"
-            f"{traceback.format_exc()}\n")
+            f"[FATAL] 翻译失败: {src_path}\n{type(e).__name__}: {e}\n")
         sys.stderr.flush()
         os._exit(88)
 
@@ -852,13 +850,13 @@ def _parallel_translate_batch(batch: list, src_root: str, temp_dir: str, output_
                 # 不再收集错误继续翻译批内剩余文件（避免浪费大量时间）。主进程
                 # 收到 BrokenProcessPool/future 异常后取消全部剩余批次退出。
                 sys.stderr.write(
-                    f"[FATAL] 文件翻译失败，立即终止编译: {src_path}\n"
-                    f"{traceback.format_exc()}\n")
+                    f"[FATAL] 文件翻译失败: {src_path}\n"
+                    f"{type(e).__name__}: {e}\n")
                 sys.stderr.flush()
                 os._exit(88)
         return (batch_errors, batch, per_file_times)
     except Exception as e:
-        return ([(item[1], f'{e}\n{traceback.format_exc()}') for item in batch], batch, [])
+        return ([(item[1], f'{type(e).__name__}: {e}') for item in batch], batch, [])
 
 
 # ==================================================================