1 // Copyright 2014-2018 The Rust Project Developers. See the COPYRIGHT
2 // file at the top-level directory of this distribution.
4 // Licensed under the Apache License, Version 2.0 <LICENSE-APACHE or
5 // http://www.apache.org/licenses/LICENSE-2.0> or the MIT license
6 // <LICENSE-MIT or http://opensource.org/licenses/MIT>, at your
7 // option. This file may not be copied, modified, or distributed
8 // except according to those terms.
11 #![feature(tool_lints)]
14 #![allow(unused_variables, clippy::blacklisted_name)]
16 use std::collections::HashSet;
19 let tracked_fds: HashSet<i32> = HashSet::new();
20 let new_fds = HashSet::new();
21 let unwanted = &tracked_fds - &new_fds;
25 let bar = String::new();
26 let bar = "foo" == &bar;
28 let a = "a".to_string();