2 files changed, 7 insertions, 0 deletions
diff --git a/compiler/rustc_borrowck/src/constraints/graph.rs b/compiler/rustc_borrowck/src/constraints/graph.rs
index 609fbc2bc..385f15317 100644
--- a/compiler/rustc_borrowck/src/constraints/graph.rs
+++ b/compiler/rustc_borrowck/src/constraints/graph.rs
@@ -163,6 +163,7 @@ impl<'s, 'tcx, D: ConstraintGraphDirecton> Iterator for Edges<'s, 'tcx, D> {
                 span: DUMMY_SP,
                 category: ConstraintCategory::Internal,
                 variance_info: VarianceDiagInfo::default(),
+                from_closure: false,
             })
         } else {
             None
diff --git a/compiler/rustc_borrowck/src/constraints/mod.rs b/compiler/rustc_borrowck/src/constraints/mod.rs
index df0412813..84a93e5f7 100644
--- a/compiler/rustc_borrowck/src/constraints/mod.rs
+++ b/compiler/rustc_borrowck/src/constraints/mod.rs
@@ -1,3 +1,6 @@
+#![deny(rustc::untranslatable_diagnostic)]
+#![deny(rustc::diagnostic_outside_of_impl)]
+
 use rustc_data_structures::graph::scc::Sccs;
 use rustc_index::vec::IndexVec;
 use rustc_middle::mir::ConstraintCategory;
@@ -96,6 +99,9 @@ pub struct OutlivesConstraint<'tcx> {
 
     /// Variance diagnostic information
     pub variance_info: VarianceDiagInfo<'tcx>,
+
+    /// If this constraint is promoted from closure requirements.
+    pub from_closure: bool,
 }
 
 impl<'tcx> fmt::Debug for OutlivesConstraint<'tcx> {