4 files changed, 4 insertions, 0 deletions
diff --git a/futures/src/backend/native/async_std.rs b/futures/src/backend/native/async_std.rs
index e8641626..b324dbf1 100644
--- a/futures/src/backend/native/async_std.rs
+++ b/futures/src/backend/native/async_std.rs
@@ -10,6 +10,7 @@ impl crate::Executor for Executor {
         Ok(Self)
     }
 
+    #[allow(clippy::let_underscore_future)]
     fn spawn(&self, future: impl Future<Output = ()> + Send + 'static) {
         let _ = async_std::task::spawn(future);
     }
diff --git a/futures/src/backend/native/tokio.rs b/futures/src/backend/native/tokio.rs
index f86b0ea3..dd818bd1 100644
--- a/futures/src/backend/native/tokio.rs
+++ b/futures/src/backend/native/tokio.rs
@@ -9,6 +9,7 @@ impl crate::Executor for Executor {
         tokio::runtime::Runtime::new()
     }
 
+    #[allow(clippy::let_underscore_future)]
     fn spawn(&self, future: impl Future<Output = ()> + Send + 'static) {
         let _ = tokio::runtime::Runtime::spawn(self, future);
     }
diff --git a/futures/src/command.rs b/futures/src/command.rs
index 05c3a1d0..3d1ec3f9 100644
--- a/futures/src/command.rs
+++ b/futures/src/command.rs
@@ -1,4 +1,5 @@
 /// A set of asynchronous actions to be performed by some runtime.
+#[must_use = "`Command` must be returned to runtime to take effect"]
 #[derive(Debug)]
 pub struct Command<T>(Internal<T>);
 
diff --git a/futures/src/subscription.rs b/futures/src/subscription.rs
index e96fa704..d18ec4f7 100644
--- a/futures/src/subscription.rs
+++ b/futures/src/subscription.rs
@@ -20,6 +20,7 @@ use crate::BoxStream;
 /// `Hasher`.
 ///
 /// [`Command`]: crate::Command
+#[must_use = "`Subscription` must be returned to runtime to take effect"]
 pub struct Subscription<Hasher, Event, Output> {
     recipes: Vec<Box<dyn Recipe<Hasher, Event, Output = Output>>>,
 }