add warning that "cargo-clippy arg1 arg2" will no longer ignore arg1 after edition 2024

Author: matthiaskrgr

src/main.rs

@@ -47,8 +47,15 @@ pub fn main() {
     // if we run "cargo clippy" (as cargo subcommand), we have to strip "cargo clippy" (first 2 args)
     // but if we are run via "..../target/debug/cargo-clippy", only ommit the first arg, the second one
     // might be a normal cmdline arg already (which we don't want to ommit)
-    let args = if let Some(first_arg) = env::args().next() && (first_arg.ends_with("cargo-clippy") || first_arg.ends_with("cargo-clippy.exe")) {
-        env::args().skip(1)
+    let args = if let Some(first_arg) = env::args().next()
+        && (first_arg.ends_with("cargo-clippy") || first_arg.ends_with("cargo-clippy.exe"))
+    {
+        // turn this of during the migration
+        // env::args().skip(1)
+        eprintln!(
+            "WARNING: potentially breaking change: 'cargo-clippy arg1 arg2...' will no longer ignore 'arg1' after edition=2024"
+        );
+        env::args().skip(2)
     } else {
         env::args().skip(2)
     };