Method fmt

libs/error-stack/tests/ui/frames_mut_escape.rs:13–15

(&self, fmt: &mut fmt::Formatter<'_>)

impl fmt::Display for RootError {
    fn fmt(&self, fmt: &mut fmt::Formatter<'_>) -> fmt::Result {
        fmt.write_str("root error")
    }
}

impl Error for RootError {}