list on the heap - compiling

src/main.rs

@@ -2,12 +2,17 @@ fn main() {
     
 }
 
-struct Node {
+pub struct List {
-    elem: i32,
+    head: Link
-    next: List,
 }
 
-pub enum List {
+enum Link{
     Empty,
     More(Box<Node>),
-}
+}
+
+struct Node {
+    elem: i32,
+    next: Link,
+}
+