clone less

compiler/rustc_hir_analysis/src/collect/resolve_bound_vars.rs

@@ -880,7 +880,7 @@ impl<'a, 'tcx> Visitor<'tcx> for BoundVarContext<'a, 'tcx> {
                             (pair, r)
                         })
                         .unzip();
-                self.record_late_bound_vars(hir_id, binders.clone());
+                self.record_late_bound_vars(hir_id, binders);
                 // Even if there are no lifetimes defined here, we still wrap it in a binder
                 // scope. If there happens to be a nested poly trait ref (an error), that
                 // will be `Concatenating` anyways, so we don't have to worry about the depth

compiler/rustc_mir_build/src/build/matches/mod.rs

@@ -856,7 +856,7 @@ impl<'a, 'tcx> Builder<'a, 'tcx> {
             }
 
             PatKind::InlineConstant { ref subpattern, .. } => {
-                self.visit_primary_bindings(subpattern, pattern_user_ty.clone(), f)
+                self.visit_primary_bindings(subpattern, pattern_user_ty, f)
             }
 
             PatKind::Leaf { ref subpatterns } => {

src/bootstrap/src/core/builder.rs

@@ -1410,7 +1410,7 @@ impl<'a> Builder<'a> {
         }
 
         // #[cfg(bootstrap)]
-        let use_new_check_cfg_syntax = self.local_rebuild;
+        let use_new_check_cfg_syntax = self.local_rebuild || cmd == "clippy";
 
         // Enable compile-time checking of `cfg` names, values and Cargo `features`.
         //

src/librustdoc/html/markdown.rs

@@ -1750,7 +1750,7 @@ pub(crate) fn markdown_links<'md, R>(
         }
         // do not actually include braces in the span
         let range = (open_brace + 1)..close_brace;
-        MarkdownLinkRange::Destination(range.clone())
+        MarkdownLinkRange::Destination(range)
     };
 
     let span_for_offset_forward = |span: Range<usize>, open: u8, close: u8| {
@@ -1786,7 +1786,7 @@ pub(crate) fn markdown_links<'md, R>(
         }
         // do not actually include braces in the span
         let range = (open_brace + 1)..close_brace;
-        MarkdownLinkRange::Destination(range.clone())
+        MarkdownLinkRange::Destination(range)
     };
 
     let mut broken_link_callback = |link: BrokenLink<'md>| Some((link.reference, "".into()));

src/librustdoc/passes/lint/html_tags.rs

@@ -29,7 +29,7 @@ pub(crate) fn visit_item(cx: &DocContext<'_>, item: &Item) {
                 crate::lint::INVALID_HTML_TAGS,
                 hir_id,
                 sp,
-                msg.to_string(),
+                msg,
                 |lint| {
                     use rustc_lint_defs::Applicability;
                     // If a tag looks like `<this>`, it might actually be a generic.