fn closures in RBE

rustbyexample/fn.d/closures.d/capture2.rs

@@ -0,0 +1,8 @@
+fn main() {
+    let haystack = vec![1, 2, 3];
+
+    let contains = move |needle| haystack.contains(needle);
+
+    println!("{}", contains(&1));
+    println!("{}", contains(&4));
+}