Report if language server requires Node or not

crates/zed/src/languages/rust.rs

@@ -19,6 +19,10 @@ impl LspAdapter for RustLspAdapter {
         LanguageServerName("rust-analyzer".into())
     }
 
+    async fn server_execution_kind(&self) -> ServerExecutionKind {
+        ServerExecutionKind::Launch
+    }
+
     async fn fetch_latest_server_version(
         &self,
         http: Arc<dyn HttpClient>,