2 Checking for imports with single component use path.
5 Import with single component use path such as `use cratename;`
6 is not necessary, and thus should be removed.
13 regex::Regex::new(r"^\d{4}-\d{2}-\d{2}$").unwrap();
19 regex::Regex::new(r"^\d{4}-\d{2}-\d{2}$").unwrap();