Fix clippy warnings

derive/src/util.rs

@@ -562,7 +562,7 @@ where
     match tree {
         UseTree::Name(name) => result.push(f(&name.ident, false)?),
         UseTree::Rename(rename) => result.push(f(&rename.rename, false)?),
-        UseTree::Path(path) => iter_use_tree_idents(&*path.tree, result, f)?,
+        UseTree::Path(path) => iter_use_tree_idents(&path.tree, result, f)?,
         UseTree::Group(syn::UseGroup { items, .. }) => {
             for subtree in items {
                 iter_use_tree_idents(subtree, result, f)?;

vm/src/stdlib/winreg.rs

@@ -304,7 +304,7 @@ mod winreg {
                 let nul_pos = wide_slice
                     .iter()
                     .position(|w| *w == 0)
-                    .unwrap_or_else(|| wide_slice.len());
+                    .unwrap_or(wide_slice.len());
                 let s = String::from_utf16_lossy(&wide_slice[..nul_pos]);
                 Ok(vm.ctx.new_str(s).into())
             }