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# Error code E0712

A borrow of a thread-local variable was made inside a function which outlived the lifetime of the function.

Erroneous code example:

    #![feature(thread_local)]

    #[thread_local]
    static FOO: u8 = 3;

    fn main() {
        let a = &FOO; // error: thread-local variable borrowed past end of function

        std::thread::spawn(move || {
            println!("{}", a);
        });
    }