More clippy lint fixes (#3355)

object_store/src/aws/client.rs

@@ -131,7 +131,7 @@ impl TryFrom<ListResponse> for ListResult {
         let common_prefixes = value
             .common_prefixes
             .into_iter()
-            .map(|x| Ok(Path::parse(&x.prefix)?))
+            .map(|x| Ok(Path::parse(x.prefix)?))
             .collect::<Result<_>>()?;
 
         let objects = value

object_store/src/azure/client.rs

@@ -407,7 +407,7 @@ impl TryFrom<ListResultInternal> for ListResult {
             .blob_prefix
             .unwrap_or_default()
             .into_iter()
-            .map(|x| Ok(Path::parse(&x.name)?))
+            .map(|x| Ok(Path::parse(x.name)?))
             .collect::<Result<_>>()?;
 
         let objects = value

object_store/src/azure/credential.rs

@@ -153,7 +153,7 @@ fn generate_authorization(
     key: &str,
 ) -> String {
     let str_to_sign = string_to_sign(h, u, method, account);
-    let auth = hmac_sha256(base64::decode(key).unwrap(), &str_to_sign);
+    let auth = hmac_sha256(base64::decode(key).unwrap(), str_to_sign);
     format!("SharedKey {}:{}", account, base64::encode(auth))
 }
 

object_store/src/local.rs

@@ -396,7 +396,7 @@ impl ObjectStore for LocalFileSystem {
             None => self.config.root.to_file_path().unwrap(),
         };
 
-        let walkdir = WalkDir::new(&root_path)
+        let walkdir = WalkDir::new(root_path)
             // Don't include the root directory itself
             .min_depth(1)
             .follow_links(true);
@@ -748,7 +748,7 @@ impl AsyncWrite for LocalUpload {
                     self.inner_state = LocalUploadState::Complete;
                     file.sync_all()?;
                     std::mem::drop(file);
-                    std::fs::rename(&staging_path, &self.dest)?;
+                    std::fs::rename(staging_path, &self.dest)?;
                     Poll::Ready(Ok(()))
                 }
                 _ => {