diff --git a/tests/snapshots/output/changes.snapshot.txt b/tests/snapshots/output/changes.snapshot.txt
index 73520d6f..be701958 100644
--- a/tests/snapshots/output/changes.snapshot.txt
+++ b/tests/snapshots/output/changes.snapshot.txt
@@ -10,7 +10,7 @@ _ fn main() {
 ~         "The perimeter of the rectangle is {} pixels.",
 ~         perimeter(&rect1)
       );
-+     println!(r#"This line contains invalid utf8:  "�����"#;
++     println!(r#"This line contains invalid utf8:  "øˆ€€€"#;
   }
   
   fn area(rectangle: &Rectangle) -> u32 {
diff --git a/tests/snapshots/output/changes_grid.snapshot.txt b/tests/snapshots/output/changes_grid.snapshot.txt
index 83e75583..fe6f4730 100644
--- a/tests/snapshots/output/changes_grid.snapshot.txt
+++ b/tests/snapshots/output/changes_grid.snapshot.txt
@@ -10,7 +10,7 @@ _ │ fn main() {
 ~ │         "The perimeter of the rectangle is {} pixels.",
 ~ │         perimeter(&rect1)
   │     );
-+ │     println!(r#"This line contains invalid utf8:  "�����"#;
++ │     println!(r#"This line contains invalid utf8:  "øˆ€€€"#;
   │ }
   │ 
   │ fn area(rectangle: &Rectangle) -> u32 {
diff --git a/tests/snapshots/output/changes_grid_header.snapshot.txt b/tests/snapshots/output/changes_grid_header.snapshot.txt
index 0a32baa8..4f1ed4d8 100644
--- a/tests/snapshots/output/changes_grid_header.snapshot.txt
+++ b/tests/snapshots/output/changes_grid_header.snapshot.txt
@@ -13,7 +13,7 @@ _ │ fn main() {
 ~ │         "The perimeter of the rectangle is {} pixels.",
 ~ │         perimeter(&rect1)
   │     );
-+ │     println!(r#"This line contains invalid utf8:  "�����"#;
++ │     println!(r#"This line contains invalid utf8:  "øˆ€€€"#;
   │ }
   │ 
   │ fn area(rectangle: &Rectangle) -> u32 {
diff --git a/tests/snapshots/output/changes_grid_header_numbers.snapshot.txt b/tests/snapshots/output/changes_grid_header_numbers.snapshot.txt
index 221306da..6c17a73e 100644
--- a/tests/snapshots/output/changes_grid_header_numbers.snapshot.txt
+++ b/tests/snapshots/output/changes_grid_header_numbers.snapshot.txt
@@ -13,7 +13,7 @@
   10 ~ │         "The perimeter of the rectangle is {} pixels.",
   11 ~ │         perimeter(&rect1)
   12   │     );
-  13 + │     println!(r#"This line contains invalid utf8:  "�����"#;
+  13 + │     println!(r#"This line contains invalid utf8:  "øˆ€€€"#;
   14   │ }
   15   │ 
   16   │ fn area(rectangle: &Rectangle) -> u32 {
diff --git a/tests/snapshots/output/changes_grid_numbers.snapshot.txt b/tests/snapshots/output/changes_grid_numbers.snapshot.txt
index 1e1789ee..996dee23 100644
--- a/tests/snapshots/output/changes_grid_numbers.snapshot.txt
+++ b/tests/snapshots/output/changes_grid_numbers.snapshot.txt
@@ -10,7 +10,7 @@
   10 ~ │         "The perimeter of the rectangle is {} pixels.",
   11 ~ │         perimeter(&rect1)
   12   │     );
-  13 + │     println!(r#"This line contains invalid utf8:  "�����"#;
+  13 + │     println!(r#"This line contains invalid utf8:  "øˆ€€€"#;
   14   │ }
   15   │ 
   16   │ fn area(rectangle: &Rectangle) -> u32 {
diff --git a/tests/snapshots/output/changes_header.snapshot.txt b/tests/snapshots/output/changes_header.snapshot.txt
index 8d1d1b8a..52155151 100644
--- a/tests/snapshots/output/changes_header.snapshot.txt
+++ b/tests/snapshots/output/changes_header.snapshot.txt
@@ -11,7 +11,7 @@ _ fn main() {
 ~         "The perimeter of the rectangle is {} pixels.",
 ~         perimeter(&rect1)
       );
-+     println!(r#"This line contains invalid utf8:  "�����"#;
++     println!(r#"This line contains invalid utf8:  "øˆ€€€"#;
   }
   
   fn area(rectangle: &Rectangle) -> u32 {
diff --git a/tests/snapshots/output/changes_header_numbers.snapshot.txt b/tests/snapshots/output/changes_header_numbers.snapshot.txt
index ddc32872..671e9508 100644
--- a/tests/snapshots/output/changes_header_numbers.snapshot.txt
+++ b/tests/snapshots/output/changes_header_numbers.snapshot.txt
@@ -11,7 +11,7 @@
   10 ~         "The perimeter of the rectangle is {} pixels.",
   11 ~         perimeter(&rect1)
   12       );
-  13 +     println!(r#"This line contains invalid utf8:  "�����"#;
+  13 +     println!(r#"This line contains invalid utf8:  "øˆ€€€"#;
   14   }
   15   
   16   fn area(rectangle: &Rectangle) -> u32 {
diff --git a/tests/snapshots/output/changes_numbers.snapshot.txt b/tests/snapshots/output/changes_numbers.snapshot.txt
index 298ee617..5637c013 100644
--- a/tests/snapshots/output/changes_numbers.snapshot.txt
+++ b/tests/snapshots/output/changes_numbers.snapshot.txt
@@ -10,7 +10,7 @@
   10 ~         "The perimeter of the rectangle is {} pixels.",
   11 ~         perimeter(&rect1)
   12       );
-  13 +     println!(r#"This line contains invalid utf8:  "�����"#;
+  13 +     println!(r#"This line contains invalid utf8:  "øˆ€€€"#;
   14   }
   15   
   16   fn area(rectangle: &Rectangle) -> u32 {
diff --git a/tests/snapshots/output/full.snapshot.txt b/tests/snapshots/output/full.snapshot.txt
index 221306da..6c17a73e 100644
--- a/tests/snapshots/output/full.snapshot.txt
+++ b/tests/snapshots/output/full.snapshot.txt
@@ -13,7 +13,7 @@
   10 ~ │         "The perimeter of the rectangle is {} pixels.",
   11 ~ │         perimeter(&rect1)
   12   │     );
-  13 + │     println!(r#"This line contains invalid utf8:  "�����"#;
+  13 + │     println!(r#"This line contains invalid utf8:  "øˆ€€€"#;
   14   │ }
   15   │ 
   16   │ fn area(rectangle: &Rectangle) -> u32 {
diff --git a/tests/snapshots/output/grid.snapshot.txt b/tests/snapshots/output/grid.snapshot.txt
index 45917643..9c707bd8 100644
--- a/tests/snapshots/output/grid.snapshot.txt
+++ b/tests/snapshots/output/grid.snapshot.txt
@@ -10,7 +10,7 @@ fn main() {
         "The perimeter of the rectangle is {} pixels.",
         perimeter(&rect1)
     );
-    println!(r#"This line contains invalid utf8:  "�����"#;
+    println!(r#"This line contains invalid utf8:  "øˆ€€€"#;
 }
 
 fn area(rectangle: &Rectangle) -> u32 {
diff --git a/tests/snapshots/output/grid_header.snapshot.txt b/tests/snapshots/output/grid_header.snapshot.txt
index fa74ec09..912732e5 100644
--- a/tests/snapshots/output/grid_header.snapshot.txt
+++ b/tests/snapshots/output/grid_header.snapshot.txt
@@ -13,7 +13,7 @@ fn main() {
         "The perimeter of the rectangle is {} pixels.",
         perimeter(&rect1)
     );
-    println!(r#"This line contains invalid utf8:  "�����"#;
+    println!(r#"This line contains invalid utf8:  "øˆ€€€"#;
 }
 
 fn area(rectangle: &Rectangle) -> u32 {
diff --git a/tests/snapshots/output/grid_header_numbers.snapshot.txt b/tests/snapshots/output/grid_header_numbers.snapshot.txt
index 733b9848..57fb1023 100644
--- a/tests/snapshots/output/grid_header_numbers.snapshot.txt
+++ b/tests/snapshots/output/grid_header_numbers.snapshot.txt
@@ -13,7 +13,7 @@
   10 │         "The perimeter of the rectangle is {} pixels.",
   11 │         perimeter(&rect1)
   12 │     );
-  13 │     println!(r#"This line contains invalid utf8:  "�����"#;
+  13 │     println!(r#"This line contains invalid utf8:  "øˆ€€€"#;
   14 │ }
   15 │ 
   16 │ fn area(rectangle: &Rectangle) -> u32 {
diff --git a/tests/snapshots/output/grid_numbers.snapshot.txt b/tests/snapshots/output/grid_numbers.snapshot.txt
index c7d8fb13..93a0d9e9 100644
--- a/tests/snapshots/output/grid_numbers.snapshot.txt
+++ b/tests/snapshots/output/grid_numbers.snapshot.txt
@@ -10,7 +10,7 @@
   10 │         "The perimeter of the rectangle is {} pixels.",
   11 │         perimeter(&rect1)
   12 │     );
-  13 │     println!(r#"This line contains invalid utf8:  "�����"#;
+  13 │     println!(r#"This line contains invalid utf8:  "øˆ€€€"#;
   14 │ }
   15 │ 
   16 │ fn area(rectangle: &Rectangle) -> u32 {
diff --git a/tests/snapshots/output/header.snapshot.txt b/tests/snapshots/output/header.snapshot.txt
index 6b9b5701..ade4e94f 100644
--- a/tests/snapshots/output/header.snapshot.txt
+++ b/tests/snapshots/output/header.snapshot.txt
@@ -11,7 +11,7 @@ fn main() {
         "The perimeter of the rectangle is {} pixels.",
         perimeter(&rect1)
     );
-    println!(r#"This line contains invalid utf8:  "�����"#;
+    println!(r#"This line contains invalid utf8:  "øˆ€€€"#;
 }
 
 fn area(rectangle: &Rectangle) -> u32 {
diff --git a/tests/snapshots/output/header_numbers.snapshot.txt b/tests/snapshots/output/header_numbers.snapshot.txt
index 4d445b5f..78f5d084 100644
--- a/tests/snapshots/output/header_numbers.snapshot.txt
+++ b/tests/snapshots/output/header_numbers.snapshot.txt
@@ -11,7 +11,7 @@
   10         "The perimeter of the rectangle is {} pixels.",
   11         perimeter(&rect1)
   12     );
-  13     println!(r#"This line contains invalid utf8:  "�����"#;
+  13     println!(r#"This line contains invalid utf8:  "øˆ€€€"#;
   14 }
   15 
   16 fn area(rectangle: &Rectangle) -> u32 {
diff --git a/tests/snapshots/output/numbers.snapshot.txt b/tests/snapshots/output/numbers.snapshot.txt
index 90ca33c5..25d2a3b9 100644
--- a/tests/snapshots/output/numbers.snapshot.txt
+++ b/tests/snapshots/output/numbers.snapshot.txt
@@ -10,7 +10,7 @@
   10         "The perimeter of the rectangle is {} pixels.",
   11         perimeter(&rect1)
   12     );
-  13     println!(r#"This line contains invalid utf8:  "�����"#;
+  13     println!(r#"This line contains invalid utf8:  "øˆ€€€"#;
   14 }
   15 
   16 fn area(rectangle: &Rectangle) -> u32 {
diff --git a/tests/snapshots/output/plain.snapshot.txt b/tests/snapshots/output/plain.snapshot.txt
index 7188c21f..e2ee1dff 100644
--- a/tests/snapshots/output/plain.snapshot.txt
+++ b/tests/snapshots/output/plain.snapshot.txt
@@ -10,7 +10,7 @@ fn main() {
         "The perimeter of the rectangle is {} pixels.",
         perimeter(&rect1)
     );
-    println!(r#"This line contains invalid utf8:  "�����"#;
+    println!(r#"This line contains invalid utf8:  "øˆ€€€"#;
 }
 
 fn area(rectangle: &Rectangle) -> u32 {
diff --git a/tests/snapshots/output/tabs_4.snapshot.txt b/tests/snapshots/output/tabs_4.snapshot.txt
index 87689c7b..9e667b0b 100644
--- a/tests/snapshots/output/tabs_4.snapshot.txt
+++ b/tests/snapshots/output/tabs_4.snapshot.txt
@@ -13,7 +13,7 @@
   10 ~ │         "The perimeter of the rectangle is {} pixels.",
   11 ~ │         perimeter(&rect1)
   12   │     );
-  13 + │     println!(r#"This line contains invalid utf8:  "�����"#;
+  13 + │     println!(r#"This line contains invalid utf8:  "øˆ€€€"#;
   14   │ }
   15   │ 
   16   │ fn area(rectangle: &Rectangle) -> u32 {
diff --git a/tests/snapshots/output/tabs_4_wrapped.snapshot.txt b/tests/snapshots/output/tabs_4_wrapped.snapshot.txt
index 87689c7b..9e667b0b 100644
--- a/tests/snapshots/output/tabs_4_wrapped.snapshot.txt
+++ b/tests/snapshots/output/tabs_4_wrapped.snapshot.txt
@@ -13,7 +13,7 @@
   10 ~ │         "The perimeter of the rectangle is {} pixels.",
   11 ~ │         perimeter(&rect1)
   12   │     );
-  13 + │     println!(r#"This line contains invalid utf8:  "�����"#;
+  13 + │     println!(r#"This line contains invalid utf8:  "øˆ€€€"#;
   14   │ }
   15   │ 
   16   │ fn area(rectangle: &Rectangle) -> u32 {
diff --git a/tests/snapshots/output/tabs_8.snapshot.txt b/tests/snapshots/output/tabs_8.snapshot.txt
index 221306da..6c17a73e 100644
--- a/tests/snapshots/output/tabs_8.snapshot.txt
+++ b/tests/snapshots/output/tabs_8.snapshot.txt
@@ -13,7 +13,7 @@
   10 ~ │         "The perimeter of the rectangle is {} pixels.",
   11 ~ │         perimeter(&rect1)
   12   │     );
-  13 + │     println!(r#"This line contains invalid utf8:  "�����"#;
+  13 + │     println!(r#"This line contains invalid utf8:  "øˆ€€€"#;
   14   │ }
   15   │ 
   16   │ fn area(rectangle: &Rectangle) -> u32 {
diff --git a/tests/snapshots/output/tabs_8_wrapped.snapshot.txt b/tests/snapshots/output/tabs_8_wrapped.snapshot.txt
index 221306da..6c17a73e 100644
--- a/tests/snapshots/output/tabs_8_wrapped.snapshot.txt
+++ b/tests/snapshots/output/tabs_8_wrapped.snapshot.txt
@@ -13,7 +13,7 @@
   10 ~ │         "The perimeter of the rectangle is {} pixels.",
   11 ~ │         perimeter(&rect1)
   12   │     );
-  13 + │     println!(r#"This line contains invalid utf8:  "�����"#;
+  13 + │     println!(r#"This line contains invalid utf8:  "øˆ€€€"#;
   14   │ }
   15   │ 
   16   │ fn area(rectangle: &Rectangle) -> u32 {
diff --git a/tests/snapshots/output/tabs_passthrough.snapshot.txt b/tests/snapshots/output/tabs_passthrough.snapshot.txt
index 3ad018a1..2b9a1332 100644
--- a/tests/snapshots/output/tabs_passthrough.snapshot.txt
+++ b/tests/snapshots/output/tabs_passthrough.snapshot.txt
@@ -13,7 +13,7 @@
   10 ~ │         "The perimeter of the rectangle is {} pixels.",
   11 ~ │         perimeter(&rect1)
   12   │     );
-  13 + │     println!(r#"This line contains invalid utf8:  "�����"#;
+  13 + │     println!(r#"This line contains invalid utf8:  "øˆ€€€"#;
   14   │ }
   15   │ 
   16   │ fn area(rectangle: &Rectangle) -> u32 {
diff --git a/tests/snapshots/output/tabs_passthrough_wrapped.snapshot.txt b/tests/snapshots/output/tabs_passthrough_wrapped.snapshot.txt
index 3ad018a1..2b9a1332 100644
--- a/tests/snapshots/output/tabs_passthrough_wrapped.snapshot.txt
+++ b/tests/snapshots/output/tabs_passthrough_wrapped.snapshot.txt
@@ -13,7 +13,7 @@
   10 ~ │         "The perimeter of the rectangle is {} pixels.",
   11 ~ │         perimeter(&rect1)
   12   │     );
-  13 + │     println!(r#"This line contains invalid utf8:  "�����"#;
+  13 + │     println!(r#"This line contains invalid utf8:  "øˆ€€€"#;
   14   │ }
   15   │ 
   16   │ fn area(rectangle: &Rectangle) -> u32 {