From a81ba0365d13e9acbe2738858a9e8a16ae614ded Mon Sep 17 00:00:00 2001
From: Magnus Ulimoen <magnus@ulimoen.dev>
Date: Thu, 25 Mar 2021 17:18:25 +0100
Subject: [PATCH] Use core over std in no_std dep

---
 utils/integrate/src/lib.rs | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/utils/integrate/src/lib.rs b/utils/integrate/src/lib.rs
index 085269f..d551192 100644
--- a/utils/integrate/src/lib.rs
+++ b/utils/integrate/src/lib.rs
@@ -281,7 +281,7 @@ fn ballistic() {
     while t < 1.0 {
         let mut next2 = next.clone();
         integrate::<EulerMethod, Ball, _>(gravity, &next, &mut next2, &mut t, dt, &mut k);
-        std::mem::swap(&mut next, &mut next2);
+        core::mem::swap(&mut next, &mut next2);
     }
     let expected_vel = initial.v + g * t;
     assert!((next.v - expected_vel).abs() < 1e-3);