1 files changed, 4 insertions, 0 deletions
diff --git a/compiler/rustc_middle/src/query/erase.rs b/compiler/rustc_middle/src/query/erase.rs
index 9742ff42419..778b4308d2e 100644
--- a/compiler/rustc_middle/src/query/erase.rs
+++ b/compiler/rustc_middle/src/query/erase.rs
@@ -82,6 +82,10 @@ impl<T> EraseType for Result<&'_ T, rustc_errors::ErrorGuaranteed> {
     type Result = [u8; size_of::<Result<&'static (), rustc_errors::ErrorGuaranteed>>()];
 }
 
+impl<T> EraseType for Result<&'_ [T], rustc_errors::ErrorGuaranteed> {
+    type Result = [u8; size_of::<Result<&'static [()], rustc_errors::ErrorGuaranteed>>()];
+}
+
 impl<T> EraseType for Result<&'_ T, traits::CodegenObligationError> {
     type Result = [u8; size_of::<Result<&'static (), traits::CodegenObligationError>>()];
 }