Extract stack-overflow output printing to module

src/main.rs

@@ -78,13 +78,7 @@ fn main() {
             Err(valgrind::Error::ValgrindFailure(output))
                 if output.contains("main thread stack using the --main-stacksize= flag") =>
             {
-                let error = "Error".red().bold();
-                let info = "Info".cyan().bold();
-                eprintln!("{error:>12}: looks like the program overflowed its stack");
-                eprintln!("{info:>12}: valgrind says:");
-                output
-                    .lines()
-                    .for_each(|line| eprintln!("              {line}"));
+                output::display_stack_overflow(&output);
                 134 // default exit code for stack overflows
             }
             Err(e) => {

src/output.rs

@@ -68,3 +68,14 @@ fn display_stack_trace(msg: &str, stack: &valgrind::xml::Stack) {
         .iter()
         .for_each(|frame| eprintln!("             at {frame}"));
 }
+
+/// Write out an error message for describing the stack overflow message.
+pub fn display_stack_overflow(output: &str) {
+    let error = "Error".red().bold();
+    let info = "Info".cyan().bold();
+    eprintln!("{error:>12}: looks like the program overflowed its stack");
+    eprintln!("{info:>12}: valgrind says:");
+    output
+        .lines()
+        .for_each(|line| eprintln!("              {line}"));
+}