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/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

@@ -25,12 +25,7 @@ pub(crate) fn visit_item(cx: &DocContext<'_>, item: &Item) {
                 Some(sp) => sp,
                 None => item.attr_span(tcx),
             };
-            tcx.struct_span_lint_hir(
-                crate::lint::INVALID_HTML_TAGS,
-                hir_id,
-                sp,
-                msg.to_string(),
-                |lint| {
+            tcx.struct_span_lint_hir(crate::lint::INVALID_HTML_TAGS, hir_id, sp, msg, |lint| {
                 use rustc_lint_defs::Applicability;
                 // If a tag looks like `<this>`, it might actually be a generic.
                 // We don't try to detect stuff `<like, this>` because that's not valid HTML,
@@ -108,8 +103,7 @@ pub(crate) fn visit_item(cx: &DocContext<'_>, item: &Item) {
                 }
 
                 lint
-                },
-            );
+            });
         };
 
         let mut tags = Vec::new();