diff --git a/tests/fail/abort-terminator.stderr b/tests/fail/abort-terminator.stderr
index 76501ca074f..b096775e61d 100644
--- a/tests/fail/abort-terminator.stderr
+++ b/tests/fail/abort-terminator.stderr
@@ -3,8 +3,10 @@ note: run with `RUST_BACKTRACE=1` environment variable to display a backtrace
 error: abnormal termination: the program aborted execution
   --> $DIR/abort-terminator.rs:LL:CC
    |
-LL | extern "C" fn panic_abort() { panic!() }
-   | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ the program aborted execution
+LL | / extern "C" fn panic_abort() {
+LL | |     panic!()
+LL | | }
+   | |_^ the program aborted execution
    |
    = note: inside `panic_abort` at $DIR/abort-terminator.rs:LL:CC
 note: inside `main` at $DIR/abort-terminator.rs:LL:CC
diff --git a/tests/fail/alloc/global_system_mixup.stderr b/tests/fail/alloc/global_system_mixup.stderr
index a3b9009e303..f197bc79178 100644
--- a/tests/fail/alloc/global_system_mixup.stderr
+++ b/tests/fail/alloc/global_system_mixup.stderr
@@ -12,7 +12,7 @@ LL |         FREE();
 note: inside `main` at $DIR/global_system_mixup.rs:LL:CC
   --> $DIR/global_system_mixup.rs:LL:CC
    |
-LL |     unsafe { System.deallocate(ptr, l); }
+LL |         System.deallocate(ptr, l);
    | ^
 
 note: some details are omitted, run with `MIRIFLAGS=-Zmiri-backtrace=full` for a verbose backtrace
diff --git a/tests/fail/intrinsics/simd-div-by-zero.stderr b/tests/fail/intrinsics/simd-div-by-zero.stderr
index 77c12de8d81..37e1aafec2c 100644
--- a/tests/fail/intrinsics/simd-div-by-zero.stderr
+++ b/tests/fail/intrinsics/simd-div-by-zero.stderr
@@ -1,8 +1,8 @@
 error: Undefined Behavior: dividing by zero
   --> $DIR/simd-div-by-zero.rs:LL:CC
    |
-LL |     simd_div(x, y);
-   |     ^^^^^^^^^^^^^^ dividing by zero
+LL |         simd_div(x, y);
+   |         ^^^^^^^^^^^^^^ dividing by zero
    |
    = 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/simd-div-overflow.stderr b/tests/fail/intrinsics/simd-div-overflow.stderr
index 53479a738b7..b5e8e378a0a 100644
--- a/tests/fail/intrinsics/simd-div-overflow.stderr
+++ b/tests/fail/intrinsics/simd-div-overflow.stderr
@@ -1,8 +1,8 @@
 error: Undefined Behavior: overflow in signed division (dividing MIN by -1)
   --> $DIR/simd-div-overflow.rs:LL:CC
    |
-LL |     simd_div(x, y);
-   |     ^^^^^^^^^^^^^^ overflow in signed division (dividing MIN by -1)
+LL |         simd_div(x, y);
+   |         ^^^^^^^^^^^^^^ overflow in signed division (dividing MIN by -1)
    |
    = 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/simd-float-to-int.stderr b/tests/fail/intrinsics/simd-float-to-int.stderr
index 6e6a136c39a..cfe272d90a1 100644
--- a/tests/fail/intrinsics/simd-float-to-int.stderr
+++ b/tests/fail/intrinsics/simd-float-to-int.stderr
@@ -11,8 +11,8 @@ LL | implement! { f32 }
 note: inside `main` at $DIR/simd-float-to-int.rs:LL:CC
   --> $DIR/simd-float-to-int.rs:LL:CC
    |
-LL |     let _x : i32x2 = f32x2::from_array([f32::MAX, f32::MIN]).to_int_unchecked();
-   |                      ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
+LL |         let _x: i32x2 = f32x2::from_array([f32::MAX, f32::MIN]).to_int_unchecked();
+   |                         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
    = note: this error originates in the macro `implement` (in Nightly builds, run with -Z macro-backtrace for more info)
 
 note: some details are omitted, run with `MIRIFLAGS=-Zmiri-backtrace=full` for a verbose backtrace
diff --git a/tests/fail/intrinsics/simd-gather.stderr b/tests/fail/intrinsics/simd-gather.stderr
index 8021077a92d..0464e67f80c 100644
--- a/tests/fail/intrinsics/simd-gather.stderr
+++ b/tests/fail/intrinsics/simd-gather.stderr
@@ -11,8 +11,8 @@ LL |         unsafe { intrinsics::simd_gather(or, ptrs, enable.to_int()) }
 note: inside `main` at $DIR/simd-gather.rs:LL:CC
   --> $DIR/simd-gather.rs:LL:CC
    |
-LL |     let _result = Simd::gather_select_unchecked(&vec, Mask::splat(true), idxs, Simd::splat(0));
-   |                   ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
+LL |         let _result = Simd::gather_select_unchecked(&vec, Mask::splat(true), idxs, Simd::splat(0));
+   |                       ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
 
 note: some details are omitted, run with `MIRIFLAGS=-Zmiri-backtrace=full` for a verbose backtrace
 
diff --git a/tests/fail/intrinsics/simd-reduce-invalid-bool.stderr b/tests/fail/intrinsics/simd-reduce-invalid-bool.stderr
index a2404b174e8..15c39500d4c 100644
--- a/tests/fail/intrinsics/simd-reduce-invalid-bool.stderr
+++ b/tests/fail/intrinsics/simd-reduce-invalid-bool.stderr
@@ -1,8 +1,8 @@
 error: Undefined Behavior: each element of a SIMD mask must be all-0-bits or all-1-bits
   --> $DIR/simd-reduce-invalid-bool.rs:LL:CC
    |
-LL |     simd_reduce_any(x);
-   |     ^^^^^^^^^^^^^^^^^^ each element of a SIMD mask must be all-0-bits or all-1-bits
+LL |         simd_reduce_any(x);
+   |         ^^^^^^^^^^^^^^^^^^ each element of a SIMD mask must be all-0-bits or all-1-bits
    |
    = 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