See 'Reflections on Rusting Trust' by Manish Goregaokar (In Pursuit of Laziness). https://manishearth.github.io/blog/2016/12/02/reflections-on-rusting-trust/ h

See 'Reflections on Rusting Trust' by Manish Goregaokar (In Pursuit of Laziness). https://manishearth.github.io/blog/2016/12/02/reflections-on-rusting-trust/ https://manishearth.github.io/blog/2016/12/02/reflections-on... He modifies rustc with a predicate that replaces the string 'hello world' with something else. The method used to replicate the change is basically a self-modifying quine.