fix children

src/complexagent.rs

@@ -88,7 +88,7 @@ impl FutureMoves {
             // SAFETY! `parents` will always be at index `depth` which will always be within range (0..self.inner.len())
             let parents = unsafe { parents.last_mut().unwrap_unchecked() };
 
-            let children = children.first_mut().map(|x| x.as_slice()).unwrap_or(&[]);
+            let children = children.first().map(Vec::as_slice).unwrap_or(&[]);
 
             parents.iter_mut().for_each(|mv| {
                 let self_value = mv.compute_self_value(self.color, depth + 1);