modify fuction clond() -> cloned()

Author: LuuuXXX

src/bootstrap/builder.rs

@@ -304,7 +304,7 @@ impl StepDescription {
 
     fn maybe_run(&self, builder: &Builder<'_>, pathsets: Vec<PathSet>) {
         let excluded_pathsets: Vec<PathSet> = 
-            pathsets.iter().filter(|set| !self.is_excluded(builder, set)).clone().collect();
+            pathsets.iter().filter(|set| !self.is_excluded(builder, set)).cloned().collect();
 
         // Determine the targets participating in this rule.
         let targets = if self.only_hosts { &builder.hosts } else { &builder.targets };