src/test/run-fail/rfc-1937-termination-trait/termination-trait-for-box-dyn-error.rs

   1 // Copyright 2018 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
  11 // must-compile-successfully
  12 // failure-status: 1
  13
  14 #![feature(dyn_trait)]
  15
  16 use std::error::Error;
  17 use std::io;
  18
  19 fn main() -> Result<(), Box<dyn Error>> {
  20     Err(Box::new(io::Error::new(io::ErrorKind::Other, "returned Box<dyn Error> from main()")))
  21 }