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24 lines
454 B
Rust
24 lines
454 B
Rust
// edition:2018
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#![feature(must_not_suspend)]
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#![allow(must_not_suspend)]
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use std::future::Future;
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use std::sync::Mutex;
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fn fake_spawn<F: Future + Send + 'static>(f: F) { }
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async fn wrong_mutex() {
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let m = Mutex::new(1);
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{
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let mut guard = m.lock().unwrap();
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(async { "right"; }).await;
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*guard += 1;
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}
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(async { "wrong"; }).await;
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}
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fn main() {
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fake_spawn(wrong_mutex()); //~ Error future cannot be sent between threads safely
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}
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