Fix Rust CI cache reuse

src/fighter/state/dash.rs

@@ -1,3 +1,5 @@
+use std::hash::Hasher;
+
 use super::{
     CollisionContext, EnterContext, FighterStateImpl, InterruptContext, UpdateContext, ground, run,
     wait, walk,
@@ -9,12 +11,18 @@ use crate::fighter::state::fall::FallState;
 use crate::fighter::state::ground::{GroundedMotionResult, GroundedStateCommon};
 use crate::input::FighterCommands::{SmashMoveLeft, SmashMoveRight};
 
-#[derive(Debug, Clone, Hash)]
+#[derive(Debug, Clone)]
 pub struct DashState {
     direction: FighterFacingDirection,
     pub ground_common: GroundedStateCommon,
 }
 
+impl std::hash::Hash for DashState {
+    fn hash<H: Hasher>(&self, state: &mut H) {
+        self.direction.hash(state);
+    }
+}
+
 impl DashState {
     pub fn new(direction: FighterFacingDirection, ground_common: GroundedStateCommon) -> Self {
         Self {