std: Re-enable at_exit()#20045
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The new semantics of this function are that the callbacks are run when the *main thread* exits, not when all threads have exited. This implies that other threads may still be running when the `at_exit` callbacks are invoked and users need to be prepared for this situation. Users in the standard library have been audited in accordance to these new rules as well. Closes rust-lang#20012
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The new semantics of this function are that the callbacks are run when the *main thread* exits, not when all threads have exited. This implies that other threads may still be running when the `at_exit` callbacks are invoked and users need to be prepared for this situation. Users in the standard library have been audited in accordance to these new rules as well. Closes rust-lang#20012
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The new semantics of this function are that the callbacks are run when the main
thread exits, not when all threads have exited. This implies that other threads
may still be running when the
at_exitcallbacks are invoked and users need tobe prepared for this situation.
Users in the standard library have been audited in accordance to these new rules
as well.
Closes #20012