fix unknown script die for known reason

src/NetscriptWorker.ts

@@ -140,7 +140,8 @@ function startNetscript2Script(workerScript: WorkerScript): Promise<WorkerScript
       workerScript.errorMessage = e;
       throw workerScript;
     }
-    throw e; // Don't know what to do with it, let's rethrow.
+    workerScript.errorMessage = makeRuntimeRejectMsg(workerScript, e);
+    throw workerScript; // Don't know what to do with it, let's rethrow.
   });
 }