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  1. #![allow(unreachable_code)]
  2.  
  3.  
  4. fn main() {
  5.     println!("{:?}", {
  6.         fn foo<'a>(strings: &'a (&'a String, &'a String)) -> &'a (&'a str, &'a str) { &(&strings.0, &strings.1) }  // and you can't do this.
  7.     });
  8. }
  9.  
  10.  
  11. /* ~~~~=== stderr ===~~~~
  12.    Compiling playground v0.0.1 (/playground)
  13. error[E0515]: cannot return reference to temporary value
  14.  --> src/main.rs:6:87
  15.   |
  16. 6 |         fn foo<'a>(strings: &'a (&'a String, &'a String)) -> &'a (&'a str, &'a str) { &(&strings.0, &strings.1) }  // and you can't do this.
  17.   |                                                                                       ^------------------------
  18.   |                                                                                       ||
  19.   |                                                                                       |temporary value created here
  20.   |                                                                                       returns a reference to data owned by the current function
  21.  
  22. error: aborting due to previous error
  23.  
  24. For more information about this error, try `rustc --explain E0515`.
  25. error: Could not compile `playground`.
  26.  
  27. To learn more, run the command again with --verbose.
  28.  
  29. */
  30.  
  31. /* ~~~~=== stdout ===~~~~
  32.  
  33. */
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