Fix warnings

src/bin.rs

@@ -22,7 +22,7 @@ fn main() {
         // PanicInfo's payload is usually a &'static str or String.
         // See: https://doc.rust-lang.org/beta/std/panic/struct.PanicInfo.html#method.payload
         let message = match panic_info.payload().downcast_ref::<&str>() {
-            Some(message) => message.to_string(),
+            Some(&message) => message.to_string(),
             None => match panic_info.payload().downcast_ref::<String>() {
                 Some(message) => message.clone(),
                 None => "<no message>".to_string(),

src/change_processor.rs

@@ -63,15 +63,6 @@ impl ChangeProcessor {
             .spawn(move || {
                 log::trace!("ChangeProcessor thread started");
 
-                #[allow(
-                    // Crossbeam's select macro generates code that Clippy doesn't like,
-                    // and Clippy blames us for it.
-                    clippy::drop_copy,
-
-                    // Crossbeam uses 0 as *const _ and Clippy doesn't like that either,
-                    // but this isn't our fault.
-                    clippy::zero_ptr,
-                )]
                 loop {
                     select! {
                         recv(vfs_receiver) -> event => {

src/serve_session.rs

@@ -181,6 +181,7 @@ impl ServeSession {
         self.tree_mutation_sender.clone()
     }
 
+    #[allow(unused)]
     pub fn vfs(&self) -> &Vfs {
         &self.vfs
     }