Update to Rust 2021 edition

JonathanWoollett-Light · alxiord · commit fbef706e28c7 · 2023-01-11T11:27:26.000+02:00
Signed-off-by: Jonathan Woollett-Light &lt;jcawl@amazon.co.uk&gt;
diff --git a/Cargo.toml b/Cargo.toml
@@ -3,7 +3,7 @@ name = "micro_http"
 version = "0.1.0"
 license = "Apache-2.0"
 authors = ["Amazon Firecracker team <firecracker-devel@amazon.com>"]
-edition = "2018"
+edition = "2021"
 
 [dependencies]
 libc = "0.2.66"
