diff options
Diffstat (limited to 'compiler/rustc_lint/src/multiple_supertrait_upcastable.rs')
| -rw-r--r-- | compiler/rustc_lint/src/multiple_supertrait_upcastable.rs | 3 |
1 files changed, 2 insertions, 1 deletions
diff --git a/compiler/rustc_lint/src/multiple_supertrait_upcastable.rs b/compiler/rustc_lint/src/multiple_supertrait_upcastable.rs index 5513c703f1d..93f067d0983 100644 --- a/compiler/rustc_lint/src/multiple_supertrait_upcastable.rs +++ b/compiler/rustc_lint/src/multiple_supertrait_upcastable.rs @@ -47,7 +47,8 @@ impl<'tcx> LateLintPass<'tcx> for MultipleSupertraitUpcastable { .explicit_super_predicates_of(def_id) .iter_identity_copied() .filter_map(|(pred, _)| pred.as_trait_clause()) - .filter(|pred| !cx.tcx.is_lang_item(pred.def_id(), hir::LangItem::MetaSized)); + .filter(|pred| !cx.tcx.is_lang_item(pred.def_id(), hir::LangItem::MetaSized)) + .filter(|pred| !cx.tcx.is_default_trait(pred.def_id())); if direct_super_traits_iter.count() > 1 { cx.emit_span_lint( MULTIPLE_SUPERTRAIT_UPCASTABLE, |