port cargo-miri to edition 2021

RalfJung · RalfJung · commit a57c30118a00 · 2022-04-09T11:17:16.000-04:00
diff --git a/cargo-miri/Cargo.toml b/cargo-miri/Cargo.toml
@@ -5,7 +5,7 @@ license = "MIT OR Apache-2.0"
 name = "cargo-miri"
 repository = "https://github.com/rust-lang/miri"
 version = "0.1.0"
-edition = "2018"
+edition = "2021"
 
 [[bin]]
 name = "cargo-miri"
