diff --git a/crates/gen_lsp_server/src/lib.rs b/crates/gen_lsp_server/src/lib.rs
index e45a6b5e27c9..5c25ba3e5a02 100644
--- a/crates/gen_lsp_server/src/lib.rs
+++ b/crates/gen_lsp_server/src/lib.rs
@@ -18,8 +18,8 @@
 //!     let (receiver, sender, io_threads) = stdio_transport();
 //!     gen_lsp_server::run_server(
 //!         ServerCapabilities::default(),
-//!         receiver,
-//!         sender,
+//!         &receiver,
+//!         &sender,
 //!         main_loop,
 //!     )?;
 //!     io_threads.join()?;
@@ -94,14 +94,14 @@ pub use {
 /// request.
 pub fn run_server(
     caps: ServerCapabilities,
-    receiver: Receiver<RawMessage>,
-    sender: Sender<RawMessage>,
+    receiver: &Receiver<RawMessage>,
+    sender: &Sender<RawMessage>,
     server: impl FnOnce(InitializeParams, &Receiver<RawMessage>, &Sender<RawMessage>) -> Result<()>,
 ) -> Result<()> {
     info!("lsp server initializes");
-    let params = initialize(&receiver, &sender, caps)?;
+    let params = initialize(receiver, sender, caps)?;
     info!("lsp server initialized, serving requests");
-    server(params, &receiver, &sender)?;
+    server(params, receiver, sender)?;
     info!("lsp server waiting for exit notification");
     match receiver.recv() {
         Some(RawMessage::Notification(n)) => n
diff --git a/crates/gen_lsp_server/src/msg.rs b/crates/gen_lsp_server/src/msg.rs
index e0d0aeab55c8..e1b27c808ec2 100644
--- a/crates/gen_lsp_server/src/msg.rs
+++ b/crates/gen_lsp_server/src/msg.rs
@@ -94,7 +94,7 @@ impl RawRequest {
         R::Params: Serialize,
     {
         RawRequest {
-            id: id,
+            id,
             method: R::METHOD.to_string(),
             params: to_value(params).unwrap(),
         }
diff --git a/crates/ra_lsp_server/src/main.rs b/crates/ra_lsp_server/src/main.rs
index c07eb01404dc..708bfe24ead3 100644
--- a/crates/ra_lsp_server/src/main.rs
+++ b/crates/ra_lsp_server/src/main.rs
@@ -35,8 +35,8 @@ fn main_inner() -> Result<()> {
     let cwd = ::std::env::current_dir()?;
     run_server(
         ra_lsp_server::server_capabilities(),
-        receiver,
-        sender,
+        &receiver,
+        &sender,
         |params, r, s| {
             let root = params
                 .root_uri
diff --git a/crates/ra_lsp_server/src/main_loop/mod.rs b/crates/ra_lsp_server/src/main_loop/mod.rs
index 2623ab84ed94..17d30aba8688 100644
--- a/crates/ra_lsp_server/src/main_loop/mod.rs
+++ b/crates/ra_lsp_server/src/main_loop/mod.rs
@@ -81,6 +81,7 @@ pub fn main_loop(
     Ok(())
 }
 
+#[cfg_attr(feature = "cargo-clippy", allow(clippy::too_many_arguments))]
 fn main_loop_inner(
     internal_mode: bool,
     ws_root: PathBuf,