parse error report

roboplc-derive/Cargo.toml

 [package]
 name = "roboplc-derive"
-version = "0.1.7"
+version = "0.1.8"
 edition = "2021"
 authors = ["Serhij S. <div@altertech.com>"]
 license = "Apache-2.0"

roboplc-derive/src/lib.rs

@@ -347,6 +347,8 @@ pub fn worker_opts_derive(input: TokenStream) -> TokenStream {
                         }
                     }
                 }
+            } else {
+                panic!("unable to parse worker_opts attribute");
             }
         }
     }