src/test/ui/issue-42106.rs

   1 // Copyright 2017 The Rust Project Developers. See the COPYRIGHT
   2 // file at the top-level directory of this distribution and at
   3 // http://rust-lang.org/COPYRIGHT.
   4 //
   5 // Licensed under the Apache License, Version 2.0 <LICENSE-APACHE or
   6 // http://www.apache.org/licenses/LICENSE-2.0> or the MIT license
   7 // <LICENSE-MIT or http://opensource.org/licenses/MIT>, at your
   8 // option. This file may not be copied, modified, or distributed
   9 // except according to those terms.
  10 #![feature(rustc_attrs)]
  11 fn do_something<T>(collection: &mut Vec<T>) {
  12     let _a = &collection;
  13     collection.swap(1, 2); //~ ERROR also borrowed as immutable
  14 }
  15
  16 fn main() { #![rustc_error] } // rust-lang/rust#49855