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-rw-r--r--compiler/rustc_hir_analysis/src/outlives/utils.rs2
1 files changed, 2 insertions, 0 deletions
diff --git a/compiler/rustc_hir_analysis/src/outlives/utils.rs b/compiler/rustc_hir_analysis/src/outlives/utils.rs
index 9459c5f54ab..c5c5f63a108 100644
--- a/compiler/rustc_hir_analysis/src/outlives/utils.rs
+++ b/compiler/rustc_hir_analysis/src/outlives/utils.rs
@@ -170,6 +170,8 @@ fn is_free_region(region: Region<'_>) -> bool {
         // ignore it. We can't put it on the struct header anyway.
         ty::ReLateBound(..) => false,
 
+        ty::ReError(_) => false,
+
         // These regions don't appear in types from type declarations:
         ty::ReErased | ty::ReVar(..) | ty::RePlaceholder(..) | ty::ReFree(..) => {
             bug!("unexpected region in outlives inference: {:?}", region);