diff --git a/compiler/rustc_lint/src/builtin.rs b/compiler/rustc_lint/src/builtin.rs index 1ea41098413..4a0da9927c6 100644 --- a/compiler/rustc_lint/src/builtin.rs +++ b/compiler/rustc_lint/src/builtin.rs @@ -769,10 +769,13 @@ impl<'tcx> LateLintPass<'tcx> for MissingCopyImplementations { // We shouldn't recommend implementing `Copy` on stateful things, // such as iterators. if let Some(iter_trait) = cx.tcx.get_diagnostic_item(sym::Iterator) { - if cx.tcx.infer_ctxt().enter(|infer_ctxt| { - infer_ctxt.type_implements_trait(iter_trait, ty, List::empty(), param_env) - == EvaluationResult::EvaluatedToOk - }) { + if cx.tcx.infer_ctxt().build().type_implements_trait( + iter_trait, + ty, + List::empty(), + param_env, + ) == EvaluationResult::EvaluatedToOk + { return; } }