fix clippy lints

futures-util/benches/select.rs

@@ -19,16 +19,15 @@ fn select_streams(b: &mut Bencher) {
         let stream6 = repeat(6).take(STREAM_COUNT);
         let stream7 = repeat(7).take(STREAM_COUNT);
         let count = block_on(async {
-            let count = select(
+            select(
                 stream1,
                 select(
                     stream2,
                     select(stream3, select(stream4, select(stream5, select(stream6, stream7)))),
                 ),
             )
             .count()
-            .await;
-            count
+            .await
         });
         assert_eq!(count, STREAM_COUNT * 7);
     });

futures-util/src/future/future/shared.rs

@@ -174,7 +174,9 @@ where
     fn record_waker(&self, waker_key: &mut usize, cx: &mut Context<'_>) {
         let mut wakers_guard = self.notifier.wakers.lock().unwrap();
 
-        let wakers = match wakers_guard.as_mut() {
+        let wakers_mut = wakers_guard.as_mut();
+
+        let wakers = match wakers_mut {
             Some(wakers) => wakers,
             None => return,
         };

futures-util/src/io/write_all_vectored.rs

@@ -181,13 +181,13 @@ mod tests {
         for (mut input, wanted) in tests {
             let mut dst = test_writer(2, 2);
             {
-                let mut future = dst.write_all_vectored(&mut *input);
+                let mut future = dst.write_all_vectored(&mut input);
                 match Pin::new(&mut future).poll(&mut cx) {
                     Poll::Ready(Ok(())) => {}
                     other => panic!("unexpected result polling future: {:?}", other),
                 }
             }
-            assert_eq!(&*dst.written, &*wanted);
+            assert_eq!(&*dst.written, wanted);
         }
     }
 
@@ -207,7 +207,7 @@ mod tests {
             let data = vec![1, 2, 3, 4];
             {
                 let mut slices = WrapVec(data.chunks(2).map(IoSlice::new).collect());
-                let mut future = dst.write_all_vectored(&mut *slices.0);
+                let mut future = dst.write_all_vectored(&mut slices.0);
                 match Pin::new(&mut future).poll(&mut cx) {
                     Poll::Ready(Ok(())) => {}
                     other => panic!("unexpected result polling future: {:?}", other),

futures-util/src/lock/mutex.rs

@@ -162,7 +162,10 @@ impl<T: ?Sized> Mutex<T> {
     fn remove_waker(&self, wait_key: usize, wake_another: bool) {
         if wait_key != WAIT_KEY_NONE {
             let mut waiters = self.waiters.lock().unwrap();
-            match waiters.remove(wait_key) {
+
+            let removed_waker = waiters.remove(wait_key);
+
+            match removed_waker {
                 Waiter::Waiting(_) => {}
                 Waiter::Woken => {
                     // We were awoken, but then dropped before we could

futures/tests/io_read.rs

@@ -4,8 +4,10 @@ use std::io;
 use std::pin::Pin;
 use std::task::{Context, Poll};
 
+type MockReaderFun = Box<dyn FnMut(&mut [u8]) -> Poll<io::Result<usize>>>;
+
 struct MockReader {
-    fun: Box<dyn FnMut(&mut [u8]) -> Poll<io::Result<usize>>>,
+    fun: MockReaderFun,
 }
 
 impl MockReader {

futures/tests/io_write.rs

@@ -4,8 +4,10 @@ use std::io;
 use std::pin::Pin;
 use std::task::{Context, Poll};
 
+type MockWriterFun = Box<dyn FnMut(&[u8]) -> Poll<io::Result<usize>>>;
+
 struct MockWriter {
-    fun: Box<dyn FnMut(&[u8]) -> Poll<io::Result<usize>>>,
+    fun: MockWriterFun,
 }
 
 impl MockWriter {