Use static in the OnceLock example

Author: cuviper

posts/2023-06-01-Rust-1.70.0.md

@@ -32,15 +32,15 @@ Two new types have been stabilized for one-time initialization of shared data, `
 ```rust
 use std::sync::OnceLock;
 
-fn main() {
-    let winner_lock = OnceLock::new();
+static WINNER: OnceLock<&str> = OnceLock::new();
 
+fn main() {
     let winner = std::thread::scope(|s| {
-        s.spawn(|| winner_lock.set("thread"));
+        s.spawn(|| WINNER.set("thread"));
 
         std::thread::yield_now(); // give them a chance...
 
-        winner_lock.get_or_init(|| "main")
+        WINNER.get_or_init(|| "main")
     });
 
     println!("{winner} wins!");