I'm a recent Rust fan (via AoC), but for "easy things hard", I would offer input/string processing as an example— regexes, string operations, grammar, etc. I know that Rust is forcing me to be correct and handle (or explicitly acknowledge that I'm not handling) my error cases, but from the point of view of just wanting to get the happy path working, it's a lot more noise to deal with compared with what it would look like in Python, eg:

        let re = Regex::new("(?P<min>[0-9]+)-(?P<max>[0-9]+) (?P<letter>[a-z]): (?P<password>[a-z]*)").unwrap();
        re.captures_iter(&contents).map(|caps|
            Input {
                password: caps.name("password").unwrap().as_str().to_string(),
                letter: caps.name("letter").unwrap().as_str().chars().next().unwrap(),
                min: caps.name("min").unwrap().as_str().parse().unwrap(),
                max: caps.name("max").unwrap().as_str().parse().unwrap()
            }
        ).collect()