Mute more warnings

stepancheg · stepancheg · commit 76642a8452d1 · 2024-09-30T01:09:46.000+01:00
diff --git a/protoc-bin/Cargo.toml b/protoc-bin/Cargo.toml
@@ -9,6 +9,7 @@ description = """
 Internal crate to rust-protobuf
 """
 publish = false
+edition = "2021"
 
 [lib]
 doctest = false
