Seems not able to do it in Rust even after several rounds of feedback. The last result (not working) was fn main() { let s = "fn main() {{ let s = {:?}; pr

Seems not able to do it in Rust even after several rounds of feedback. The last result (not working) was fn main() { let s = "fn main() {{ let s = {:?}; print!({:?}, s); print!({{0}}, s) }}"; print!("{:?}", s); print!("{}", s); }