Reviewer comments

tokio-util/src/time/mod.rs

@@ -19,8 +19,8 @@ pub use delay_queue::DelayQueue;
 use futures_core::Future;
 use tokio::time::Timeout;
 
-/// A trait which contains a variety of conevenient adapters and utilities for `Future`s.
-pub trait FutureExt: Future + Sized {
+/// A trait which contains a variety of convenient adapters and utilities for `Future`s.
+pub trait FutureExt: Future {
     /// A wrapper around [`tokio::time::timeout`], with the advantage that it is easier to write
     /// fluent call chains.
     ///
@@ -37,7 +37,10 @@ pub trait FutureExt: Future + Sized {
     /// assert!(res.is_err());
     /// # }
     /// ```
-    fn timeout(self, timeout: Duration) -> Timeout<Self> {
+    fn timeout(self, timeout: Duration) -> Timeout<Self>
+    where
+        Self: Sized,
+    {
         tokio::time::timeout(timeout, self)
     }
 }