Should Result::ok() be #[must_use]?

[Kyuuhachi]

Code

fn main() {
    fallible().ok();
}

fn fallible() -> Result<(), ()> { unimplemented!() }

Current output

None

Desired output

warning: unused return value of `ok` that must be used

Rationale and extra context

Same for Result::err() of course. Option::ok_or() is already must_use since it returns Result.

Other cases

Rust Version

1.85.0 on playground

Anything else?

No response

[slanterns]

duplicate of #66116.