diff --git a/src/librustc_mir/borrow_check/nll/region_infer/mod.rs b/src/librustc_mir/borrow_check/nll/region_infer/mod.rs
index 785f810d9415..f0d3a0d2986e 100644
--- a/src/librustc_mir/borrow_check/nll/region_infer/mod.rs
+++ b/src/librustc_mir/borrow_check/nll/region_infer/mod.rs
@@ -1357,7 +1357,6 @@ pub trait ClosureRegionRequirementsExt<'gcx, 'tcx> {
     fn apply_requirements(
         &self,
         tcx: TyCtxt<'_, 'gcx, 'tcx>,
-        location: Location,
         closure_def_id: DefId,
         closure_substs: SubstsRef<'tcx>,
     ) -> Vec<QueryRegionConstraint<'tcx>>;
@@ -1388,13 +1387,12 @@ impl<'gcx, 'tcx> ClosureRegionRequirementsExt<'gcx, 'tcx> for ClosureRegionRequi
     fn apply_requirements(
         &self,
         tcx: TyCtxt<'_, 'gcx, 'tcx>,
-        location: Location,
         closure_def_id: DefId,
         closure_substs: SubstsRef<'tcx>,
     ) -> Vec<QueryRegionConstraint<'tcx>> {
         debug!(
-            "apply_requirements(location={:?}, closure_def_id={:?}, closure_substs={:?})",
-            location, closure_def_id, closure_substs
+            "apply_requirements(closure_def_id={:?}, closure_substs={:?})",
+            closure_def_id, closure_substs
         );
 
         // Extract the values of the free regions in `closure_substs`