rustlings: complete 13

1 files changed, 1 insertions, 1 deletions

diff --git a/rustlings/exercises/13_error_handling/errors5.rs b/rustlings/exercises/13_error_handling/errors5.rs
index 125779b..405f0dc 100644
--- a/rustlings/exercises/13_error_handling/errors5.rs
+++ b/rustlings/exercises/13_error_handling/errors5.rs
@@ -48,7 +48,7 @@ impl PositiveNonzeroInteger {
 
 // TODO: Add the correct return type `Result<(), Box<dyn ???>>`. What can we
 // use to describe both errors? Is there a trait which both errors implement?
-fn main() {
+fn main() -> Result<(), Box<dyn Error>> {
     let pretend_user_input = "42";
     let x: i64 = pretend_user_input.parse()?;
     println!("output={:?}", PositiveNonzeroInteger::new(x)?);