diff --git a/benches/executor.rs b/benches/executor.rs
index 74b2955..42fedbd 100644
--- a/benches/executor.rs
+++ b/benches/executor.rs
@@ -59,7 +59,7 @@ fn running_benches(c: &mut Criterion) {
         for (group_name, multithread) in [("single_thread", false), ("multi_thread", true)].iter() {
             let mut group = c.benchmark_group(group_name.to_string());
 
-            group.bench_function(format!("{}::spawn_one", prefix), |b| {
+            group.bench_function(format!("{prefix}::spawn_one"), |b| {
                 if with_static {
                     run_static(
                         || {
@@ -98,7 +98,7 @@ fn running_benches(c: &mut Criterion) {
                 });
             }
 
-            group.bench_function(format!("{}::spawn_many_local", prefix), |b| {
+            group.bench_function(format!("{prefix}::spawn_many_local"), |b| {
                 if with_static {
                     run_static(
                         || {
@@ -136,7 +136,7 @@ fn running_benches(c: &mut Criterion) {
                 }
             });
 
-            group.bench_function(format!("{}::spawn_recursively", prefix), |b| {
+            group.bench_function(format!("{prefix}::spawn_recursively"), |b| {
                 #[allow(clippy::manual_async_fn)]
                 fn go(i: usize) -> impl Future<Output = ()> + Send + 'static {
                     async move {
@@ -201,7 +201,7 @@ fn running_benches(c: &mut Criterion) {
                 }
             });
 
-            group.bench_function(format!("{}::yield_now", prefix), |b| {
+            group.bench_function(format!("{prefix}::yield_now"), |b| {
                 if with_static {
                     run_static(
                         || {
@@ -247,7 +247,7 @@ fn running_benches(c: &mut Criterion) {
                 }
             });
 
-            group.bench_function(format!("{}::channels", prefix), |b| {
+            group.bench_function(format!("{prefix}::channels"), |b| {
                 if with_static {
                     run_static(
                         || {
@@ -325,7 +325,7 @@ fn running_benches(c: &mut Criterion) {
                 }
             });
 
-            group.bench_function(format!("{}::web_server", prefix), |b| {
+            group.bench_function(format!("{prefix}::web_server"), |b| {
                 if with_static {
                     run_static(
                         || {
diff --git a/examples/priority.rs b/examples/priority.rs
index 60d5c9a..b1dc01e 100644
--- a/examples/priority.rs
+++ b/examples/priority.rs
@@ -72,9 +72,9 @@ fn main() {
 
         // Spawn a task with this priority.
         tasks.push(EX.spawn(priority, async move {
-            println!("{:?}", priority);
+            println!("{priority:?}");
             future::yield_now().await;
-            println!("{:?}", priority);
+            println!("{priority:?}");
         }));
     }
 
diff --git a/src/lib.rs b/src/lib.rs
index baeda1d..74e02db 100644
--- a/src/lib.rs
+++ b/src/lib.rs
@@ -38,6 +38,7 @@
     html_logo_url = "https://raw.githubusercontent.com/smol-rs/smol/master/assets/images/logo_fullsize_transparent.png"
 )]
 #![cfg_attr(docsrs, feature(doc_cfg, doc_auto_cfg))]
+#![allow(clippy::unused_unit)] // false positive fixed in Rust 1.89
 
 use std::fmt;
 use std::marker::PhantomData;