W

diff --git a/Cargo.lock b/Cargo.lock
index 0e5399e665c4621039bfb037ecf89b5765ce4cd6..f6b4d9cb69aaa5414056e2d9723f1c7eb0500e63 100644 (file)
--- a/Cargo.lock
+++ b/Cargo.lock
@@ -2,6 +2,320 @@
 # It is not intended for manual editing.
 version = 3
 
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 name = "foo"
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diff --git a/Cargo.toml b/Cargo.toml
index 1d9cfe3176c1c42b6a25e8d6e6afc494908ab44e..08dc38bfe5e180bc0addf4e47f0affb0780f3bc6 100644 (file)
--- a/Cargo.toml
+++ b/Cargo.toml
@@ -6,3 +6,4 @@ edition = "2021"
 # See more keys and their definitions at https://doc.rust-lang.org/cargo/reference/manifest.html
 
 [dependencies]
+tokio = { version = "1", features = ["full"] }

diff --git a/src/main.rs b/src/main.rs
index 318d67ebe33d57b1d8471e7c20df15f665ba61e7..36bc06a6a6026f3a52b2adb5b0414999984d75f8 100644 (file)
--- a/src/main.rs
+++ b/src/main.rs
@@ -1,12 +1,19 @@
 use std::sync::mpsc;
+use std::future::Future;
+use std::pin::Pin;
 
 async fn failure() {
     let (_, rx) = mpsc::channel::<()>();
-    while let Ok(Some(thing)) = rx.try_recv() {
+    loop {
+        while let Ok(_thing) = rx.try_recv() {
+        }
     }
 }
 
-#[tokio::main]
 fn main() {
-    failure().await;
+    let _: Pin<Box<dyn Future<Output=()> + Send>> = Box::pin(
+        async {
+            failure().await;
+        }
+    );
 }