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-rw-r--r--clippy_lints/src/non_canonical_impls.rs5
1 files changed, 3 insertions, 2 deletions
diff --git a/clippy_lints/src/non_canonical_impls.rs b/clippy_lints/src/non_canonical_impls.rs
index 04b09276966..19fd1925e90 100644
--- a/clippy_lints/src/non_canonical_impls.rs
+++ b/clippy_lints/src/non_canonical_impls.rs
@@ -134,7 +134,8 @@ impl LateLintPass<'_> for NonCanonicalImpls {
             return;
         }
 
-        if cx.tcx.is_diagnostic_item(sym::Clone, trait_impl.def_id)
+        let trait_name = cx.tcx.get_diagnostic_name(trait_impl.def_id);
+        if trait_name == Some(sym::Clone)
             && let Some(copy_def_id) = cx.tcx.get_diagnostic_item(sym::Copy)
             && implements_trait(cx, trait_impl.self_ty(), copy_def_id, &[])
         {
@@ -175,7 +176,7 @@ impl LateLintPass<'_> for NonCanonicalImpls {
             }
         }
 
-        if cx.tcx.is_diagnostic_item(sym::PartialOrd, trait_impl.def_id)
+        if trait_name == Some(sym::PartialOrd)
             && impl_item.ident.name == sym::partial_cmp
             && let Some(ord_def_id) = cx.tcx.get_diagnostic_item(sym::Ord)
             && implements_trait(cx, trait_impl.self_ty(), ord_def_id, &[])