diff --git a/compiler/rustc_trait_selection/src/traits/coherence.rs b/compiler/rustc_trait_selection/src/traits/coherence.rs index 9d690578cfc..ed55da623cb 100644 --- a/compiler/rustc_trait_selection/src/traits/coherence.rs +++ b/compiler/rustc_trait_selection/src/traits/coherence.rs @@ -287,7 +287,7 @@ fn implicit_negative<'cx, 'tcx>( predicate: p, }) .chain(obligations) - .find(|o| loose_check(selcx, o)); + .find(|o| !selcx.predicate_may_hold_fatal(o)); if let Some(failing_obligation) = opt_failing_obligation { debug!("overlap: obligation unsatisfiable {:?}", failing_obligation); @@ -363,16 +363,6 @@ fn negative_impl<'cx, 'tcx>( }) } -fn loose_check<'cx, 'tcx>( - selcx: &mut SelectionContext<'cx, 'tcx>, - o: &PredicateObligation<'tcx>, -) -> bool { - // FIXME: the call to `selcx.predicate_may_hold_fatal` below should be ported - // to the canonical trait query form, `infcx.predicate_may_hold`, once - // the new system supports intercrate mode (which coherence needs). - !selcx.predicate_may_hold_fatal(o) -} - fn negative_impl_exists<'cx, 'tcx>( selcx: &SelectionContext<'cx, 'tcx>, param_env: ty::ParamEnv<'tcx>,