diff --git a/compiler/rustc_codegen_ssa/src/lib.rs b/compiler/rustc_codegen_ssa/src/lib.rs
index 5b90ffaa05666..23146661f27c0 100644
--- a/compiler/rustc_codegen_ssa/src/lib.rs
+++ b/compiler/rustc_codegen_ssa/src/lib.rs
@@ -119,7 +119,7 @@ impl<M> ModuleCodegen<M> {
         });
 
         CompiledModule {
-            name: self.name.clone(),
+            name: self.name,
             object,
             dwarf_object,
             bytecode,
diff --git a/compiler/rustc_mir_transform/src/coverage/expansion.rs b/compiler/rustc_mir_transform/src/coverage/expansion.rs
index 91e0528f52f94..851bbaeed48eb 100644
--- a/compiler/rustc_mir_transform/src/coverage/expansion.rs
+++ b/compiler/rustc_mir_transform/src/coverage/expansion.rs
@@ -82,7 +82,7 @@ impl ExpnNode {
         Self {
             expn_id,
 
-            expn_kind: expn_data.kind.clone(),
+            expn_kind: expn_data.kind,
             call_site,
             call_site_expn_id,
 
diff --git a/compiler/rustc_resolve/src/late/diagnostics.rs b/compiler/rustc_resolve/src/late/diagnostics.rs
index 80b2095d8ccff..9e3c093883661 100644
--- a/compiler/rustc_resolve/src/late/diagnostics.rs
+++ b/compiler/rustc_resolve/src/late/diagnostics.rs
@@ -3099,7 +3099,7 @@ impl<'ast, 'ra, 'tcx> LateResolutionVisitor<'_, 'ast, 'ra, 'tcx> {
                 |err, _, span, message, suggestion, span_suggs| {
                     err.multipart_suggestion_verbose(
                         message,
-                        std::iter::once((span, suggestion)).chain(span_suggs.clone()).collect(),
+                        std::iter::once((span, suggestion)).chain(span_suggs).collect(),
                         Applicability::MaybeIncorrect,
                     );
                     true
diff --git a/compiler/rustc_trait_selection/src/error_reporting/infer/mod.rs b/compiler/rustc_trait_selection/src/error_reporting/infer/mod.rs
index 9447612d026b1..812e20e433822 100644
--- a/compiler/rustc_trait_selection/src/error_reporting/infer/mod.rs
+++ b/compiler/rustc_trait_selection/src/error_reporting/infer/mod.rs
@@ -318,7 +318,7 @@ impl<'a, 'tcx> TypeErrCtxt<'a, 'tcx> {
                     let (expected, found) = if expected_str == found_str {
                         (join_path_syms(&expected_abs), join_path_syms(&found_abs))
                     } else {
-                        (expected_str.clone(), found_str.clone())
+                        (expected_str, found_str)
                     };
 
                     // We've displayed "expected `a::b`, found `a::b`". We add context to