fix clippy warn

src/future/future/join.rs

@@ -45,16 +45,14 @@ where
         let mut left = this.left;
         let mut right = this.right;
 
-        if Future::poll(Pin::new(&mut left), cx).is_ready() {
-            if right.as_ref().output().is_some() {
-                return Poll::Ready((left.take().unwrap(), right.take().unwrap()));
-            }
+        let is_left_ready = Future::poll(Pin::new(&mut left), cx).is_ready();
+        if is_left_ready && right.as_ref().output().is_some() {
+            return Poll::Ready((left.take().unwrap(), right.take().unwrap()));
         }
 
-        if Future::poll(Pin::new(&mut right), cx).is_ready() {
-            if left.as_ref().output().is_some() {
-                return Poll::Ready((left.take().unwrap(), right.take().unwrap()));
-            }
+        let is_right_ready = Future::poll(Pin::new(&mut right), cx).is_ready();
+        if is_right_ready && left.as_ref().output().is_some() {
+            return Poll::Ready((left.take().unwrap(), right.take().unwrap()));
         }
 
         Poll::Pending

src/stream/stream/last.rs

@@ -1,5 +1,5 @@
-use std::pin::Pin;
 use std::future::Future;
+use std::pin::Pin;
 
 use pin_project_lite::pin_project;
 

src/stream/stream/partition.rs

@@ -1,14 +1,13 @@
+use pin_project_lite::pin_project;
+use std::default::Default;
 use std::future::Future;
 use std::pin::Pin;
-use std::default::Default;
-use pin_project_lite::pin_project;
 
 use crate::stream::Stream;
 use crate::task::{Context, Poll};
 
 pin_project! {
     #[derive(Debug)]
-    #[allow(missing_debug_implementations)]
     #[cfg(all(feature = "default", feature = "unstable"))]
     #[cfg_attr(feature = "docs", doc(cfg(unstable)))]
     pub struct PartitionFuture<S, F, B> {
@@ -46,10 +45,12 @@ where
             match next {
                 Some(v) => {
                     let mut res = this.res.take().unwrap();
-                    match (this.f)(&v) {
-                        true => res.0.extend(Some(v)),
-                        false => res.1.extend(Some(v)),
-                    };
+
+                    if (this.f)(&v) {
+                        res.0.extend(Some(v))
+                    } else {
+                        res.1.extend(Some(v))
+                    }
 
                     *this.res = Some(res);
                 }

src/task/executor/pool.rs

@@ -43,7 +43,7 @@ static POOL: Lazy<Pool> = Lazy::new(|| {
             .name("async-std/executor".to_string())
             .spawn(|| {
                 let _ = PROCESSOR.with(|p| p.set(proc));
-                abort_on_panic(|| main_loop());
+                abort_on_panic(main_loop);
             })
             .expect("cannot start a thread driving tasks");
     }