diff --git a/.github/workflows/ci.yml b/.github/workflows/ci.yml
index 6f8bac9..0eeb3eb 100644
--- a/.github/workflows/ci.yml
+++ b/.github/workflows/ci.yml
@@ -60,8 +60,8 @@ jobs:
       - name: Run cargo test (with valgrind)
         run: cargo test -- --test-threads=1
         env:
-          # TODO: use --errors-for-leak-kinds=definite,indirect due to upstream bug (https://github.com/rust-lang/rust/issues/135608)
-          CARGO_TARGET_X86_64_UNKNOWN_LINUX_GNU_RUNNER: valgrind -v --error-exitcode=1 --error-limit=no --leak-check=full --show-leak-kinds=all --errors-for-leak-kinds=definite,indirect --track-origins=yes --fair-sched=yes
+          # TODO: ignore possible and reachable leaks due to upstream issue (https://github.com/rust-lang/rust/issues/135608)
+          CARGO_TARGET_X86_64_UNKNOWN_LINUX_GNU_RUNNER: valgrind -v --error-exitcode=1 --error-limit=no --leak-check=full --show-leak-kinds=definite,indirect --errors-for-leak-kinds=definite,indirect --track-origins=yes --fair-sched=yes --gen-suppressions=all
       - name: Run cargo test (with portable-atomic enabled)
         run: cargo test --features portable-atomic
       - name: Clone async-executor
diff --git a/examples/with-metadata.rs b/examples/with-metadata.rs
index 1bd1bc7..7a71f50 100644
--- a/examples/with-metadata.rs
+++ b/examples/with-metadata.rs
@@ -72,9 +72,7 @@ thread_local! {
     static QUEUE: RefCell<BinaryHeap<ByDuration>> = RefCell::new(BinaryHeap::new());
 }
 
-fn make_future_fn<'a, F>(
-    future: F,
-) -> impl (FnOnce(&'a DurationMetadata) -> MeasureRuntime<'a, F>) {
+fn make_future_fn<'a, F>(future: F) -> impl FnOnce(&'a DurationMetadata) -> MeasureRuntime<'a, F> {
     move |duration_meta| MeasureRuntime {
         f: future,
         duration: &duration_meta.inner,
diff --git a/src/lib.rs b/src/lib.rs
index c8f6702..58b2211 100644
--- a/src/lib.rs
+++ b/src/lib.rs
@@ -36,6 +36,9 @@
 //!
 //! // Push the task into the queue by invoking its schedule function.
 //! runnable.schedule();
+//! # let handle = std::thread::spawn(move || { for runnable in receiver { runnable.run(); }});
+//! # smol::future::block_on(task);
+//! # handle.join().unwrap();
 //! ```
 //!
 //! The [`Runnable`] is used to poll the task's future, and the [`Task`] is used to await its
diff --git a/src/runnable.rs b/src/runnable.rs
index 17945b2..b6b3957 100644
--- a/src/runnable.rs
+++ b/src/runnable.rs
@@ -734,6 +734,9 @@ impl<M> Runnable<M> {
     /// assert_eq!(r.len(), 0);
     /// runnable.schedule();
     /// assert_eq!(r.len(), 1);
+    /// # let handle = std::thread::spawn(move || { for runnable in r { runnable.run(); }});
+    /// # smol::future::block_on(task);
+    /// # handle.join().unwrap();
     /// ```
     pub fn schedule(self) {
         let ptr = self.ptr.as_ptr();
@@ -803,6 +806,9 @@ impl<M> Runnable<M> {
     /// assert_eq!(r.len(), 0);
     /// waker.wake();
     /// assert_eq!(r.len(), 1);
+    /// # let handle = std::thread::spawn(move || { for runnable in r { runnable.run(); }});
+    /// # smol::future::block_on(task.cancel()); // cancel because the future is future::pending
+    /// # handle.join().unwrap();
     /// ```
     pub fn waker(&self) -> Waker {
         let ptr = self.ptr.as_ptr();
diff --git a/src/state.rs b/src/state.rs
index 2fc6cf3..40ed5ca 100644
--- a/src/state.rs
+++ b/src/state.rs
@@ -55,7 +55,7 @@ pub(crate) const REGISTERING: usize = 1 << 6;
 /// Set if the awaiter is being notified.
 ///
 /// This flag is set when notifying the awaiter. If an awaiter is concurrently registered and
-/// notified, whichever side came first will take over the reposibility of resolving the race.
+/// notified, whichever side came first will take over the responsibility of resolving the race.
 pub(crate) const NOTIFYING: usize = 1 << 7;
 
 /// A single reference.
diff --git a/src/task.rs b/src/task.rs
index a3dfd17..700cc60 100644
--- a/src/task.rs
+++ b/src/task.rs
@@ -237,7 +237,7 @@ impl<T, M> Task<T, M> {
             let mut output = None;
 
             // Optimistically assume the `Task` is being detached just after creating the task.
-            // This is a common case so if the `Task` is datached, the overhead of it is only one
+            // This is a common case so if the `Task` is detached, the overhead of it is only one
             // compare-exchange operation.
             if let Err(mut state) = (*header).state.compare_exchange_weak(
                 SCHEDULED | TASK | REFERENCE,