1 files changed, 6 insertions, 0 deletions
diff --git a/compiler/rustc_middle/src/query/erase.rs b/compiler/rustc_middle/src/query/erase.rs
index bd20e6aa005..48bf4ffced0 100644
--- a/compiler/rustc_middle/src/query/erase.rs
+++ b/compiler/rustc_middle/src/query/erase.rs
@@ -1,6 +1,8 @@
 use std::intrinsics::transmute_unchecked;
 use std::mem::MaybeUninit;
 
+use rustc_span::ErrorGuaranteed;
+
 use crate::query::CyclePlaceholder;
 use crate::ty::adjustment::CoerceUnsizedInfo;
 use crate::ty::{self, Ty};
@@ -216,6 +218,10 @@ impl<T0, T1> EraseType for (&'_ T0, &'_ [T1]) {
     type Result = [u8; size_of::<(&'static (), &'static [()])>()];
 }
 
+impl<T0> EraseType for (&'_ T0, Result<(), ErrorGuaranteed>) {
+    type Result = [u8; size_of::<(&'static (), Result<(), ErrorGuaranteed>)>()];
+}
+
 macro_rules! trivial {
     ($($ty:ty),+ $(,)?) => {
         $(