diff --git a/src/mutex.rs b/src/mutex.rs
index 633ff9b..69828ba 100644
--- a/src/mutex.rs
+++ b/src/mutex.rs
@@ -4,7 +4,6 @@ use futures_channel::oneshot;
 use futures_task::{Context, Poll};
 use std::{
     cell::UnsafeCell,
-    clone::Clone,
     collections::VecDeque,
     future::Future,
     ops::{Deref, DerefMut},
diff --git a/src/rwlock.rs b/src/rwlock.rs
index e4abbaa..ff2bae2 100644
--- a/src/rwlock.rs
+++ b/src/rwlock.rs
@@ -4,7 +4,6 @@ use futures_channel::oneshot;
 use futures_task::{Context, Poll};
 use std::{
     cell::UnsafeCell,
-    clone::Clone,
     collections::VecDeque,
     future::Future,
     ops::{Deref, DerefMut},
diff --git a/tests/mutex.rs b/tests/mutex.rs
index ee09a14..2505845 100644
--- a/tests/mutex.rs
+++ b/tests/mutex.rs
@@ -7,7 +7,7 @@ use futures::stream::StreamExt;
 use std::sync::Arc;
 #[cfg(feature = "tokio")]
 use std::rc::Rc;
-use tokio::{self, sync::Barrier};
+use tokio::{sync::Barrier};
 #[cfg(feature = "tokio")]
 use tokio::runtime;
 use tokio_test::task::spawn;
diff --git a/tests/rwlock.rs b/tests/rwlock.rs
index 12ffab9..1bb98ab 100644
--- a/tests/rwlock.rs
+++ b/tests/rwlock.rs
@@ -10,7 +10,7 @@ use futures::future::ready;
 use std::sync::Arc;
 #[cfg(feature = "tokio")]
 use std::rc::Rc;
-use tokio::{self, sync::Barrier};
+use tokio::{sync::Barrier};
 #[cfg(feature = "tokio")]
 use tokio::runtime;
 use tokio_test::{