deps: Bump smol to 2.0 (#22956)

The collateral of this is that code size is increased by ~300kB, but I
think we can stomach it.

Release Notes:

- N/A

crates/remote_server/src/headless_project.rs

@@ -515,7 +515,7 @@ impl HeadlessProject {
                 .query
                 .ok_or_else(|| anyhow!("missing query field"))?,
         )?;
-        let mut results = this.update(&mut cx, |this, cx| {
+        let results = this.update(&mut cx, |this, cx| {
             this.buffer_store.update(cx, |buffer_store, cx| {
                 buffer_store.find_search_candidates(&query, message.limit as _, this.fs.clone(), cx)
             })
@@ -527,7 +527,7 @@ impl HeadlessProject {
 
         let buffer_store = this.read_with(&cx, |this, _| this.buffer_store.clone())?;
 
-        while let Some(buffer) = results.next().await {
+        while let Ok(buffer) = results.recv().await {
             let buffer_id = buffer.update(&mut cx, |this, _| this.remote_id())?;
             response.buffer_ids.push(buffer_id.to_proto());
             buffer_store

crates/remote_server/src/remote_editing_tests.rs

@@ -187,7 +187,7 @@ async fn test_remote_project_search(cx: &mut TestAppContext, server_cx: &mut Tes
     cx.run_until_parked();
 
     async fn do_search(project: &Model<Project>, mut cx: TestAppContext) -> Model<Buffer> {
-        let mut receiver = project.update(&mut cx, |project, cx| {
+        let receiver = project.update(&mut cx, |project, cx| {
             project.search(
                 SearchQuery::text(
                     "project",
@@ -203,7 +203,7 @@ async fn test_remote_project_search(cx: &mut TestAppContext, server_cx: &mut Tes
             )
         });
 
-        let first_response = receiver.next().await.unwrap();
+        let first_response = receiver.recv().await.unwrap();
         let SearchResult::Buffer { buffer, .. } = first_response else {
             panic!("incorrect result");
         };
@@ -214,7 +214,7 @@ async fn test_remote_project_search(cx: &mut TestAppContext, server_cx: &mut Tes
             )
         });
 
-        assert!(receiver.next().await.is_none());
+        assert!(receiver.recv().await.is_err());
         buffer
     }
 

crates/remote_server/src/unix.rs

@@ -249,7 +249,7 @@ impl ServerListeners {
 
 fn start_server(
     listeners: ServerListeners,
-    mut log_rx: Receiver<Vec<u8>>,
+    log_rx: Receiver<Vec<u8>>,
     cx: &mut AppContext,
 ) -> Arc<ChannelClient> {
     // This is the server idle timeout. If no connection comes in in this timeout, the server will shut down.
@@ -351,8 +351,8 @@ fn start_server(
                         }
                     }
 
-                    log_message = log_rx.next().fuse() => {
-                        if let Some(log_message) = log_message {
+                    log_message = log_rx.recv().fuse() => {
+                        if let Ok(log_message) = log_message {
                             if let Err(error) = stderr_stream.write_all(&log_message).await {
                                 log::error!("failed to write log message to stderr: {:?}", error);
                                 break;