diff --git a/crates/ra_mbe/src/mbe_expander/matcher.rs b/crates/ra_mbe/src/mbe_expander/matcher.rs
index 78f9efa1b6..f9e515b811 100644
--- a/crates/ra_mbe/src/mbe_expander/matcher.rs
+++ b/crates/ra_mbe/src/mbe_expander/matcher.rs
@@ -260,7 +260,7 @@ impl<'a> TtIter<'a> {
             | ('|', '=', None)
             | ('|', '|', None) => {
                 let tt2 = self.next().unwrap().clone();
-                Ok(tt::Subtree { delimiter: None, token_trees: vec![tt.clone(), tt2] }.into())
+                Ok(tt::Subtree { delimiter: None, token_trees: vec![tt, tt2] }.into())
             }
             _ => Ok(tt),
         }
diff --git a/crates/ra_proc_macro_srv/src/dylib.rs b/crates/ra_proc_macro_srv/src/dylib.rs
index aa84e951cd..1addbbd54f 100644
--- a/crates/ra_proc_macro_srv/src/dylib.rs
+++ b/crates/ra_proc_macro_srv/src/dylib.rs
@@ -45,7 +45,7 @@ fn find_registrar_symbol(file: &Path) -> io::Result<Option<String>> {
                     // https://developer.apple.com/library/archive/documentation/System/Conceptual/ManPages_iPhoneOS/man3/dlsym.3.html
                     // Unlike other dyld API's, the symbol name passed to dlsym() must NOT be
                     // prepended with an underscore.
-                    if s.name.starts_with("_") {
+                    if s.name.starts_with('_') {
                         &s.name[1..]
                     } else {
                         &s.name
diff --git a/crates/rust-analyzer/src/global_state.rs b/crates/rust-analyzer/src/global_state.rs
index 640b3959df..c8d34e15a8 100644
--- a/crates/rust-analyzer/src/global_state.rs
+++ b/crates/rust-analyzer/src/global_state.rs
@@ -204,8 +204,7 @@ impl GlobalState {
         if let Some((method, start)) = self.req_queue.incoming.complete(response.id.clone()) {
             let duration = start.elapsed();
             log::info!("handled req#{} in {:?}", response.id, duration);
-            let metrics =
-                RequestMetrics { id: response.id.clone(), method: method.to_string(), duration };
+            let metrics = RequestMetrics { id: response.id.clone(), method, duration };
             self.latest_requests.write().record(metrics);
             self.send(response.into());
         }