diff --git a/rust-version b/rust-version
index 682914e882..b726558b76 100644
--- a/rust-version
+++ b/rust-version
@@ -1 +1 @@
-46b8c23f3eb5e4d0e0aa27eb3f20d5b8fc3ed51f
+4045ce641a9eede71cc12031a2cd71692b273890
diff --git a/src/diagnostics.rs b/src/diagnostics.rs
index 28d4733718..a942390e54 100644
--- a/src/diagnostics.rs
+++ b/src/diagnostics.rs
@@ -450,7 +450,7 @@ pub trait EvalContextExt<'mir, 'tcx: 'mir>: crate::MiriEvalContextExt<'mir, 'tcx
                 let msg = match e {
                     CreatedPointerTag(tag, None) => format!("created tag {tag:?}"),
                     CreatedPointerTag(tag, Some((alloc_id, range))) =>
-                        format!("created tag {tag:?} at {alloc_id}{}", HexRange(range)),
+                        format!("created tag {tag:?} at {alloc_id:?}{}", HexRange(range)),
                     PoppedPointerTag(item, tag) =>
                         match tag {
                             None =>
diff --git a/src/helpers.rs b/src/helpers.rs
index c051d44fa2..7e702e0656 100644
--- a/src/helpers.rs
+++ b/src/helpers.rs
@@ -699,7 +699,7 @@ pub trait EvalContextExt<'mir, 'tcx: 'mir>: crate::MiriEvalContextExt<'mir, 'tcx
             // FIXME: We are re-getting the allocation each time around the loop.
             // Would be nice if we could somehow "extend" an existing AllocRange.
             let alloc = this.get_ptr_alloc(ptr.offset(len, this)?, size1, Align::ONE)?.unwrap(); // not a ZST, so we will get a result
-            let byte = alloc.read_integer(Size::ZERO, size1)?.to_u8()?;
+            let byte = alloc.read_integer(alloc_range(Size::ZERO, size1))?.to_u8()?;
             if byte == 0 {
                 break;
             } else {
@@ -721,7 +721,7 @@ pub trait EvalContextExt<'mir, 'tcx: 'mir>: crate::MiriEvalContextExt<'mir, 'tcx
             // FIXME: We are re-getting the allocation each time around the loop.
             // Would be nice if we could somehow "extend" an existing AllocRange.
             let alloc = this.get_ptr_alloc(ptr, size2, align2)?.unwrap(); // not a ZST, so we will get a result
-            let wchar = alloc.read_integer(Size::ZERO, size2)?.to_u16()?;
+            let wchar = alloc.read_integer(alloc_range(Size::ZERO, size2))?.to_u16()?;
             if wchar == 0 {
                 break;
             } else {
diff --git a/src/stacked_borrows.rs b/src/stacked_borrows.rs
index cc2ea0b76d..efc38fdae3 100644
--- a/src/stacked_borrows.rs
+++ b/src/stacked_borrows.rs
@@ -1097,7 +1097,7 @@ pub trait EvalContextExt<'mir, 'tcx: 'mir>: crate::MiriEvalContextExt<'mir, 'tcx
             AllocKind::LiveData => {
                 // This should have alloc_extra data.
                 let alloc_extra = this.get_alloc_extra(alloc_id).unwrap();
-                trace!("Stacked Borrows tag {tag:?} exposed in {alloc_id}");
+                trace!("Stacked Borrows tag {tag:?} exposed in {alloc_id:?}");
                 alloc_extra.stacked_borrows.as_ref().unwrap().borrow_mut().exposed_tags.insert(tag);
             }
             AllocKind::Function | AllocKind::Dead => {
diff --git a/src/stacked_borrows/diagnostics.rs b/src/stacked_borrows/diagnostics.rs
index a7b8e5f13c..fe3716a911 100644
--- a/src/stacked_borrows/diagnostics.rs
+++ b/src/stacked_borrows/diagnostics.rs
@@ -140,9 +140,8 @@ impl AllocHistory {
         stack: &Stack,
     ) -> InterpError<'tcx> {
         let action = format!(
-            "trying to reborrow {derived_from:?} for {:?} permission at {}[{:#x}]",
+            "trying to reborrow {derived_from:?} for {:?} permission at {alloc_id:?}[{:#x}]",
             new.perm,
-            alloc_id,
             error_offset.bytes(),
         );
         err_sb_ub(
@@ -163,8 +162,7 @@ impl AllocHistory {
         stack: &Stack,
     ) -> InterpError<'tcx> {
         let action = format!(
-            "attempting a {access} using {tag:?} at {}[{:#x}]",
-            alloc_id,
+            "attempting a {access} using {tag:?} at {alloc_id:?}[{:#x}]",
             error_offset.bytes(),
         );
         err_sb_ub(