In order to have true ergonomic no_panic code in Rust you'd need to be able to have parametricity on the panic behavior: have a single Box::new that can be context determined to be panicky or Result based. It has to be context determined and not explicitly code determined so that the top most request for the no_panic version to be propagated all the way down to stdlib through the entire stack. If you squint just a bit, you can see this is the same as maybe async, and maybe const, and maybe allocate, and maybe wrapping/overflowing math, etc. So there's an option to just add try_ methods on the entire stdlib, which all the code between your API and the underlying API need to use/expose, or push for a generic language level mechanism for this. Which then complicates the language, compiler and library code further. Or do both.