Added missing 'generated' msg to compile_error_msg

Author: aortizpimentel

src/cargo/core/compiler/mod.rs

@@ -1802,6 +1802,6 @@ fn compile_error_msg(
     } else if mode.is_doc() {
         message.push_str(" doc");
     }
-    message.push_str(")");
+    message.push_str(") generated ");
     message
 }