diff --git a/tests/basic.rs b/tests/basic.rs
index c9fb9f4..727a05e 100644
--- a/tests/basic.rs
+++ b/tests/basic.rs
@@ -21,7 +21,7 @@ macro_rules! future {
         static $drop: AtomicUsize = AtomicUsize::new(0);
 
         let $name = {
-            struct Fut(Box<i32>);
+            struct Fut(#[allow(dead_code)] Box<i32>);
 
             impl Future for Fut {
                 type Output = Box<i32>;
@@ -56,7 +56,7 @@ macro_rules! schedule {
         static $sched: AtomicUsize = AtomicUsize::new(0);
 
         let $name = {
-            struct Guard(Box<i32>);
+            struct Guard(#[allow(dead_code)] Box<i32>);
 
             impl Drop for Guard {
                 fn drop(&mut self) {
diff --git a/tests/cancel.rs b/tests/cancel.rs
index 0fe7c72..0333367 100644
--- a/tests/cancel.rs
+++ b/tests/cancel.rs
@@ -24,7 +24,7 @@ macro_rules! future {
         static $drop_t: AtomicUsize = AtomicUsize::new(0);
 
         let $name = {
-            struct Fut(Box<i32>);
+            struct Fut(#[allow(dead_code)] Box<i32>);
 
             impl Future for Fut {
                 type Output = Out;
@@ -43,7 +43,7 @@ macro_rules! future {
             }
 
             #[derive(Default)]
-            struct Out(Box<i32>, bool);
+            struct Out(#[allow(dead_code)] Box<i32>, bool);
 
             impl Drop for Out {
                 fn drop(&mut self) {
@@ -71,7 +71,7 @@ macro_rules! schedule {
         static $sched: AtomicUsize = AtomicUsize::new(0);
 
         let $name = {
-            struct Guard(Box<i32>);
+            struct Guard(#[allow(dead_code)] Box<i32>);
 
             impl Drop for Guard {
                 fn drop(&mut self) {
diff --git a/tests/join.rs b/tests/join.rs
index 2ac7b8d..089b5c1 100644
--- a/tests/join.rs
+++ b/tests/join.rs
@@ -26,7 +26,7 @@ macro_rules! future {
         static $drop_t: AtomicUsize = AtomicUsize::new(0);
 
         let $name = {
-            struct Fut(Box<i32>);
+            struct Fut(#[allow(dead_code)] Box<i32>);
 
             impl Future for Fut {
                 type Output = Out;
@@ -44,7 +44,7 @@ macro_rules! future {
             }
 
             #[derive(Default)]
-            struct Out(Box<i32>, bool);
+            struct Out(#[allow(dead_code)] Box<i32>, bool);
 
             impl Drop for Out {
                 fn drop(&mut self) {
@@ -72,7 +72,7 @@ macro_rules! schedule {
         static $sched: AtomicUsize = AtomicUsize::new(0);
 
         let $name = {
-            struct Guard(Box<i32>);
+            struct Guard(#[allow(dead_code)] Box<i32>);
 
             impl Drop for Guard {
                 fn drop(&mut self) {
diff --git a/tests/panic.rs b/tests/panic.rs
index 85684a0..726e385 100644
--- a/tests/panic.rs
+++ b/tests/panic.rs
@@ -23,7 +23,7 @@ macro_rules! future {
         static $drop: AtomicUsize = AtomicUsize::new(0);
 
         let $name = {
-            struct Fut(Box<i32>);
+            struct Fut(#[allow(dead_code)] Box<i32>);
 
             impl Future for Fut {
                 type Output = ();
@@ -59,7 +59,7 @@ macro_rules! schedule {
         static $sched: AtomicUsize = AtomicUsize::new(0);
 
         let $name = {
-            struct Guard(Box<i32>);
+            struct Guard(#[allow(dead_code)] Box<i32>);
 
             impl Drop for Guard {
                 fn drop(&mut self) {
diff --git a/tests/ready.rs b/tests/ready.rs
index e345565..aefb36e 100644
--- a/tests/ready.rs
+++ b/tests/ready.rs
@@ -24,7 +24,7 @@ macro_rules! future {
         static $drop_t: AtomicUsize = AtomicUsize::new(0);
 
         let $name = {
-            struct Fut(Box<i32>);
+            struct Fut(#[allow(dead_code)] Box<i32>);
 
             impl Future for Fut {
                 type Output = Out;
@@ -43,7 +43,7 @@ macro_rules! future {
             }
 
             #[derive(Default)]
-            struct Out(Box<i32>, bool);
+            struct Out(#[allow(dead_code)] Box<i32>, bool);
 
             impl Drop for Out {
                 fn drop(&mut self) {
@@ -71,7 +71,7 @@ macro_rules! schedule {
         static $sched: AtomicUsize = AtomicUsize::new(0);
 
         let $name = {
-            struct Guard(Box<i32>);
+            struct Guard(#[allow(dead_code)] Box<i32>);
 
             impl Drop for Guard {
                 fn drop(&mut self) {
diff --git a/tests/waker_panic.rs b/tests/waker_panic.rs
index 7a7792e..5b54f9d 100644
--- a/tests/waker_panic.rs
+++ b/tests/waker_panic.rs
@@ -29,7 +29,7 @@ macro_rules! future {
         static WAKER: AtomicWaker = AtomicWaker::new();
 
         let ($name, $get_waker) = {
-            struct Fut(Cell<bool>, Box<i32>);
+            struct Fut(Cell<bool>, #[allow(dead_code)] Box<i32>);
 
             impl Future for Fut {
                 type Output = ();
@@ -76,7 +76,7 @@ macro_rules! schedule {
         let ($name, $chan) = {
             let (s, r) = flume::unbounded();
 
-            struct Guard(Box<i32>);
+            struct Guard(#[allow(dead_code)] Box<i32>);
 
             impl Drop for Guard {
                 fn drop(&mut self) {
diff --git a/tests/waker_pending.rs b/tests/waker_pending.rs
index 9c95cba..ccd540b 100644
--- a/tests/waker_pending.rs
+++ b/tests/waker_pending.rs
@@ -26,7 +26,7 @@ macro_rules! future {
         static WAKER: AtomicWaker = AtomicWaker::new();
 
         let ($name, $get_waker) = {
-            struct Fut(Box<i32>);
+            struct Fut(#[allow(dead_code)] Box<i32>);
 
             impl Future for Fut {
                 type Output = ();
@@ -67,7 +67,7 @@ macro_rules! schedule {
         let ($name, $chan) = {
             let (s, r) = flume::unbounded();
 
-            struct Guard(Box<i32>);
+            struct Guard(#[allow(dead_code)] Box<i32>);
 
             impl Drop for Guard {
                 fn drop(&mut self) {
diff --git a/tests/waker_ready.rs b/tests/waker_ready.rs
index 335134e..b6f6b5f 100644
--- a/tests/waker_ready.rs
+++ b/tests/waker_ready.rs
@@ -26,7 +26,7 @@ macro_rules! future {
         static WAKER: AtomicWaker = AtomicWaker::new();
 
         let ($name, $get_waker) = {
-            struct Fut(Cell<bool>, Box<i32>);
+            struct Fut(Cell<bool>, #[allow(dead_code)] Box<i32>);
 
             impl Future for Fut {
                 type Output = Box<i32>;
@@ -73,7 +73,7 @@ macro_rules! schedule {
         let ($name, $chan) = {
             let (s, r) = flume::unbounded();
 
-            struct Guard(Box<i32>);
+            struct Guard(#[allow(dead_code)] Box<i32>);
 
             impl Drop for Guard {
                 fn drop(&mut self) {