move parse out of loop

src/main.rs

@@ -38,13 +38,14 @@ fn main() {
         let mut p = pattern.write().unwrap();
         *p = res.unwrap();
     }
-    let lock_c = Arc::clone(&lock);
     loop {
         thread::sleep(time::Duration::from_millis(250));
+
+        let lock_c = Arc::clone(&lock);
         let pattern_c = Arc::clone(&pattern);
-        let v = 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| {
+        v.iter().for_each(move |x| {
             x.execute(&mut lights);
         });
     }