Rust is gradually eating into the metal parts.

Don't complain about that. You've asked for it.

He rubbed the rust off with a file.

You have no one but yourself to blame.

Hey, rust is eating away the metal.

The ladder was covered with dust and rust.

As rust eats iron, so care eats the heart.

This car is resistant to rust.

This metal is free of rust.

Don't complain about it. You've asked for it.

I found an old rusty key in that room.