diff --git a/tests/fail/intrinsics/ptr_metadata_uninit_slice_data.rs b/tests/fail/intrinsics/ptr_metadata_uninit_slice_data.rs
index ff23f1e729..0c305eed6e 100644
--- a/tests/fail/intrinsics/ptr_metadata_uninit_slice_data.rs
+++ b/tests/fail/intrinsics/ptr_metadata_uninit_slice_data.rs
@@ -7,10 +7,12 @@ use std::intrinsics::mir::*;
 
 #[custom_mir(dialect = "runtime")]
 pub unsafe fn deref_meta(p: *const *const [i32]) -> usize {
-    mir!({
-        RET = PtrMetadata(*p); //~ ERROR: Undefined Behavior: using uninitialized data
-        Return()
-    })
+    mir! {
+        {
+            RET = PtrMetadata(*p); //~ ERROR: Undefined Behavior: using uninitialized data
+            Return()
+        }
+    }
 }
 
 fn main() {
diff --git a/tests/fail/intrinsics/ptr_metadata_uninit_slice_data.stderr b/tests/fail/intrinsics/ptr_metadata_uninit_slice_data.stderr
index 61e1541d1e..6478dcc250 100644
--- a/tests/fail/intrinsics/ptr_metadata_uninit_slice_data.stderr
+++ b/tests/fail/intrinsics/ptr_metadata_uninit_slice_data.stderr
@@ -1,8 +1,8 @@
 error: Undefined Behavior: using uninitialized data, but this operation requires initialized memory
   --> $DIR/ptr_metadata_uninit_slice_data.rs:LL:CC
    |
-LL |         RET = PtrMetadata(*p);
-   |         ^^^^^^^^^^^^^^^^^^^^^ using uninitialized data, but this operation requires initialized memory
+LL |             RET = PtrMetadata(*p);
+   |             ^^^^^^^^^^^^^^^^^^^^^ using uninitialized data, but this operation requires initialized memory
    |
    = help: this indicates a bug in the program: it performed an invalid operation, and caused Undefined Behavior
    = help: see https://doc.rust-lang.org/nightly/reference/behavior-considered-undefined.html for further information
diff --git a/tests/fail/intrinsics/ptr_metadata_uninit_slice_len.rs b/tests/fail/intrinsics/ptr_metadata_uninit_slice_len.rs
index 65f74c0acd..a2ffdc92c4 100644
--- a/tests/fail/intrinsics/ptr_metadata_uninit_slice_len.rs
+++ b/tests/fail/intrinsics/ptr_metadata_uninit_slice_len.rs
@@ -7,10 +7,12 @@ use std::intrinsics::mir::*;
 
 #[custom_mir(dialect = "runtime")]
 pub unsafe fn deref_meta(p: *const *const [i32]) -> usize {
-    mir!({
-        RET = PtrMetadata(*p); //~ ERROR: Undefined Behavior: using uninitialized data
-        Return()
-    })
+    mir! {
+        {
+            RET = PtrMetadata(*p); //~ ERROR: Undefined Behavior: using uninitialized data
+            Return()
+        }
+    }
 }
 
 fn main() {
diff --git a/tests/fail/intrinsics/ptr_metadata_uninit_slice_len.stderr b/tests/fail/intrinsics/ptr_metadata_uninit_slice_len.stderr
index de559263a3..4e2e721843 100644
--- a/tests/fail/intrinsics/ptr_metadata_uninit_slice_len.stderr
+++ b/tests/fail/intrinsics/ptr_metadata_uninit_slice_len.stderr
@@ -16,8 +16,8 @@ LL |         (*p.as_mut_ptr().cast::<[*const i32; 2]>())[0] = 4 as *const i32;
 error: Undefined Behavior: using uninitialized data, but this operation requires initialized memory
   --> $DIR/ptr_metadata_uninit_slice_len.rs:LL:CC
    |
-LL |         RET = PtrMetadata(*p);
-   |         ^^^^^^^^^^^^^^^^^^^^^ using uninitialized data, but this operation requires initialized memory
+LL |             RET = PtrMetadata(*p);
+   |             ^^^^^^^^^^^^^^^^^^^^^ using uninitialized data, but this operation requires initialized memory
    |
    = help: this indicates a bug in the program: it performed an invalid operation, and caused Undefined Behavior
    = help: see https://doc.rust-lang.org/nightly/reference/behavior-considered-undefined.html for further information
diff --git a/tests/fail/intrinsics/ptr_metadata_uninit_thin.rs b/tests/fail/intrinsics/ptr_metadata_uninit_thin.rs
index ad2e9fc800..e5a51289a8 100644
--- a/tests/fail/intrinsics/ptr_metadata_uninit_thin.rs
+++ b/tests/fail/intrinsics/ptr_metadata_uninit_thin.rs
@@ -7,10 +7,12 @@ use std::intrinsics::mir::*;
 
 #[custom_mir(dialect = "runtime")]
 pub unsafe fn deref_meta(p: *const *const i32) -> () {
-    mir!({
-        RET = PtrMetadata(*p); //~ ERROR: Undefined Behavior: using uninitialized data
-        Return()
-    })
+    mir! {
+        {
+            RET = PtrMetadata(*p); //~ ERROR: Undefined Behavior: using uninitialized data
+            Return()
+        }
+    }
 }
 
 fn main() {
diff --git a/tests/fail/intrinsics/ptr_metadata_uninit_thin.stderr b/tests/fail/intrinsics/ptr_metadata_uninit_thin.stderr
index 3ab2643afa..0e218de0ee 100644
--- a/tests/fail/intrinsics/ptr_metadata_uninit_thin.stderr
+++ b/tests/fail/intrinsics/ptr_metadata_uninit_thin.stderr
@@ -1,8 +1,8 @@
 error: Undefined Behavior: using uninitialized data, but this operation requires initialized memory
   --> $DIR/ptr_metadata_uninit_thin.rs:LL:CC
    |
-LL |         RET = PtrMetadata(*p);
-   |         ^^^^^^^^^^^^^^^^^^^^^ using uninitialized data, but this operation requires initialized memory
+LL |             RET = PtrMetadata(*p);
+   |             ^^^^^^^^^^^^^^^^^^^^^ using uninitialized data, but this operation requires initialized memory
    |
    = help: this indicates a bug in the program: it performed an invalid operation, and caused Undefined Behavior
    = help: see https://doc.rust-lang.org/nightly/reference/behavior-considered-undefined.html for further information