Migrate to 2021

Mark-Simulacrum · Mark-Simulacrum · commit 208fc4254b9b · 2021-09-20T22:21:42.000-04:00
diff --git a/Cargo.toml b/Cargo.toml
@@ -1,7 +1,7 @@
 [package]
 name = "rustc_codegen_cranelift"
 version = "0.1.0"
-edition = "2018"
+edition = "2021"
 
 [lib]
 crate-type = ["dylib"]
