Eat dogfood

clippy_dev/src/serve.rs

@@ -34,7 +34,7 @@ pub fn run(port: u16, lint: Option<&str>) -> ! {
                 // Give some time for python to start
                 thread::sleep(Duration::from_millis(500));
                 // Launch browser after first export.py has completed and http.server is up
-                let _ = opener::open(url);
+                let _result = opener::open(url);
             });
         }
         thread::sleep(Duration::from_millis(1000));

clippy_lints/src/macro_use.rs

@@ -160,7 +160,7 @@ impl<'tcx> LateLintPass<'tcx> for MacroUseImports {
             let found_idx = self.mac_refs.iter().position(|mac| import.ends_with(&mac.name));
 
             if let Some(idx) = found_idx {
-                let _ = self.mac_refs.remove(idx);
+                self.mac_refs.remove(idx);
                 let seg = import.split("::").collect::<Vec<_>>();
 
                 match seg.as_slice() {

src/main.rs

@@ -195,7 +195,7 @@ mod tests {
     #[should_panic]
     fn fix_without_unstable() {
         let args = "cargo clippy --fix".split_whitespace().map(ToString::to_string);
-        let _ = ClippyCmd::new(args);
+        ClippyCmd::new(args);
     }
 
     #[test]