mirror of https://github.com/rust-lang/rust
28 lines
531 B
Rust
28 lines
531 B
Rust
#![feature(auto_traits)]
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#![feature(negative_impls)]
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//@ edition:2018
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// This tests the unspecialized async-await-specific error when futures don't implement an
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// auto trait (which is not Send or Sync) due to some type that was captured.
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auto trait Qux {}
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struct Foo;
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impl !Qux for Foo {}
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fn is_qux<T: Qux>(t: T) {}
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async fn bar() {
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let x = Foo;
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baz().await;
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drop(x);
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}
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async fn baz() {}
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fn main() {
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is_qux(bar());
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//~^ ERROR the trait bound `Foo: Qux` is not satisfied in `impl Future<Output = ()>`
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}
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