Rollup merge of #72153 - lcnr:exhaustively-match, r=pnkfelix

[rust.git] / src / librustc_lint / unused.rs

diff --git a/src/librustc_lint/unused.rs b/src/librustc_lint/unused.rs
index c24079a6e4be234c9ec5156c8181d9dcd5785236..dea829343137064da7097f6781cb76c9c859d7e7 100644 (file)
--- a/src/librustc_lint/unused.rs
+++ b/src/librustc_lint/unused.rs
@@ -146,7 +146,9 @@ fn check_must_use_ty<'tcx>(
                 ty::Opaque(def, _) => {
                     let mut has_emitted = false;
                     for (predicate, _) in cx.tcx.predicates_of(def).predicates {
-                        if let ty::Predicate::Trait(ref poly_trait_predicate, _) = predicate {
+                        if let ty::PredicateKind::Trait(ref poly_trait_predicate, _) =
+                            predicate.kind()
+                        {
                             let trait_ref = poly_trait_predicate.skip_binder().trait_ref;
                             let def_id = trait_ref.def_id;
                             let descr_pre =