Fix clippy warnings

crates/ide/src/ty/union_find.rs

@@ -43,7 +43,7 @@ impl<T> UnionFind<T> {
         let (a, b) = (a as usize, b as usize);
         let lhs = self.0[a].0.take().unwrap();
         let rhs = self.0[b].0.take().unwrap();
-        let final_idx = match Ord::cmp(&self.0[a].2, &self.0[b as usize].2) {
+        let final_idx = match Ord::cmp(&self.0[a].2, &self.0[b].2) {
             Ordering::Less => {
                 self.0[a].1 = b as u32;
                 self.0[b].0 = Some(lhs);

crates/nil/src/lib.rs

@@ -32,7 +32,7 @@ pub type Result<T, E = Error> = std::result::Result<T, E>;
 
 pub fn main_loop(conn: Connection) -> Result<()> {
     let init_params =
-        conn.initialize(serde_json::to_value(&capabilities::server_capabilities()).unwrap())?;
+        conn.initialize(serde_json::to_value(capabilities::server_capabilities()).unwrap())?;
     tracing::info!("Init params: {}", init_params);
 
     let init_params = serde_json::from_value::<InitializeParams>(init_params)?;

crates/nil/src/vfs.rs

@@ -92,7 +92,7 @@ impl Vfs {
                 return Err(format!("Invalid range {:?}", del_range).into());
             }
             let mut buf = String::with_capacity(
-                text.len() - usize::from(del_range.len()) + ins_text.len() as usize,
+                text.len() - usize::from(del_range.len()) + ins_text.len(),
             );
             buf += &text[..usize::from(del_range.start())];
             buf += ins_text;