2 files changed, 4 insertions, 3 deletions
diff --git a/compiler/rustc_transmute/src/layout/tree.rs b/compiler/rustc_transmute/src/layout/tree.rs
index 30e20ba6f..295b65c2c 100644
--- a/compiler/rustc_transmute/src/layout/tree.rs
+++ b/compiler/rustc_transmute/src/layout/tree.rs
@@ -284,8 +284,9 @@ pub(crate) mod rustc {
                 }
 
                 ty::Array(ty, len) => {
-                    let len =
-                        len.try_eval_usize(tcx, ParamEnv::reveal_all()).ok_or(Err::Unspecified)?;
+                    let len = len
+                        .try_eval_target_usize(tcx, ParamEnv::reveal_all())
+                        .ok_or(Err::Unspecified)?;
                     let elt = Tree::from_ty(*ty, tcx)?;
                     Ok(std::iter::repeat(elt)
                         .take(len as usize)
diff --git a/compiler/rustc_transmute/src/lib.rs b/compiler/rustc_transmute/src/lib.rs
index b3b9a67b2..4b4a8ebd0 100644
--- a/compiler/rustc_transmute/src/lib.rs
+++ b/compiler/rustc_transmute/src/lib.rs
@@ -117,7 +117,7 @@ mod rustc {
             c: Const<'tcx>,
         ) -> Option<Self> {
             use rustc_middle::ty::ScalarInt;
-            use rustc_middle::ty::TypeVisitable;
+            use rustc_middle::ty::TypeVisitableExt;
             use rustc_span::symbol::sym;
 
             let c = c.eval(tcx, param_env);