Function display 

pub fn display(value: impl Display) -> String

Formats runtime diagnostic detail in debug builds and strips it in release builds.

The argument is always evaluated, then either rendered (debug) or dropped (release). Prefer detail! when the argument has nontrivial cost or side effects.

In debug builds the result is the rendered value; in release builds it is empty.

let _ = redacted_error::display("127.0.0.1:8080");