move parse out of loop

src/main.rs

@@ -43,7 +43,7 @@ fn main() {
 
         let lock_c = Arc::clone(&lock);
         let pattern_c = Arc::clone(&pattern);
-        let v: Vec<Box<dyn Pattern>> = *(pattern_c.read().expect("could not read pattern"));
+        let v: Vec<Box<dyn Pattern>> = pattern_c.read().expect("could not read pattern");
         let mut lights = lock_c.write().unwrap();
         v.iter().for_each(move |x| {
             x.execute(&mut lights);