src/librustc_error_codes/error_codes/E0712.md

   1 This error occurs because a borrow of a thread-local variable was made inside a
   2 function which outlived the lifetime of the function.
   3
   4 Erroneous code example:
   5
   6 ```compile_fail,E0712
   7 #![feature(thread_local)]
   8
   9 #[thread_local]
  10 static FOO: u8 = 3;
  11
  12 fn main() {
  13     let a = &FOO; // error: thread-local variable borrowed past end of function
  14
  15     std::thread::spawn(move || {
  16         println!("{}", a);
  17     });
  18 }
  19 ```