Edition to 2021

diff --git a/ch2-str-simple-pattern/Cargo.toml b/ch2-str-simple-pattern/Cargo.toml
index 0ecbd52..209fb81 100644 (file)
--- a/ch2-str-simple-pattern/Cargo.toml
+++ b/ch2-str-simple-pattern/Cargo.toml
@@ -2,7 +2,7 @@
 name = "ch2-str-simple-pattern"
 version = "0.1.0"
 authors = ["Greg Burri <greg.burri@gmail.com>"]
-edition = "2018"
+edition = "2021"
 
 # See more keys and their definitions at https://doc.rust-lang.org/cargo/reference/manifest.html