Add panic msg

src/symbols/factory.rs

@@ -321,7 +321,10 @@ env[PATH] = /usr/local/bin:/usr/bin:/bin
     Box::new(ListAction::new(vec![
       Box::new(MariaDBDatabase::new(
         name.into(),
-        db_dump.read_filename().unwrap().into(),
+        db_dump
+          .read_filename()
+          .expect("Initial db dump missing")
+          .into(),
         self.command_runner,
       ))
       .into_action(self.symbol_runner),