it compiles now

src/main.rs

@@ -72,46 +72,30 @@ fn find_path(
 }
 
 #[post("/move", format = "json", data = "<msg>")]
-fn make_move(cache: State<Cache>, msg: Json<battlesnake::SnakeRequest>) -> Json<battlesnake::MoveResponse> {
+fn make_move(cache_state: State<Cache>, msg: Json<battlesnake::SnakeRequest>) -> Json<battlesnake::MoveResponse> {
     let head = msg.you.body[0];
-    if let Some(mut gs) = cache.lock().expect("wanted cache to be unlockable").get(&msg.game.id) {
-        let gs_path = gs.path.as_ref().or_else(|| {
-            let target = find_target(&msg);
-            let path = find_path(&msg, &head, &target);
-            gs = &GameState{
-                target: *target,
-                path: path,
-            };
 
-            path.as_ref()
+    let mut cache = cache_state.lock().expect("wanted cache to be unlockable");
-        });
+    let gs = cache.get_mut(&msg.game.id).unwrap();
-        let mut inner = gs_path.expect("what");
+    if gs.path.is_none() {
-        let next = inner[0];
+        gs.target = *find_target(&msg);
-        inner.pop();
+        gs.path = find_path(&msg, &head, &gs.target);
-
-        if inner.len() == 0 {
-            gs.path = None;
-        }
-
-        return Json(battlesnake::MoveResponse{
-            move_field: battlesnake::Line{
-                start: &head,
-                end: &next,
-            }.direction().to_string(),
-        })
     }
 
-    let target = find_target(&msg);
+    match gs.path.as_mut().unwrap().pop() {
-    let path = find_path(&msg, &head, &target);
+        None => {
-    let gs = GameState{
+            gs.path = None;
-        target: *target,
+            Json(battlesnake::MoveResponse {
-        path: path,
+                move_field: "up".to_string(),
-    };
+            })
-    println!("{:?}", gs);
+        },
-
+        Some(next) => Json(battlesnake::MoveResponse{
-    Json(battlesnake::MoveResponse {
+                move_field: battlesnake::Line{
-        move_field: "up".to_string(),
+                    start: &head,
-    })
+                    end: &next,
+                }.direction().to_string(),
+        }),
+    }
 }
 
 fn find_target<'a>(gs: &'a battlesnake::SnakeRequest) -> &'a battlesnake::Coord {