21 lines
960 B
Plaintext
21 lines
960 B
Plaintext
error[E0277]: `F` cannot be sent between threads safely
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--> $DIR/closure-bounds-cant-promote-superkind-in-struct.rs:5:22
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LL | fn foo<F>(blk: F) -> X<F> where F: FnOnce() + 'static {
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| ^^^^ `F` cannot be sent between threads safely
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= note: consider using `std::sync::Arc<F>`; for more information visit <https://doc.rust-lang.org/book/ch16-03-shared-state.html>
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note: required by a bound in `X`
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--> $DIR/closure-bounds-cant-promote-superkind-in-struct.rs:1:43
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LL | struct X<F> where F: FnOnce() + 'static + Send {
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| ^^^^ required by this bound in `X`
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help: consider further restricting this bound
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LL | fn foo<F>(blk: F) -> X<F> where F: FnOnce() + 'static + std::marker::Send {
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| +++++++++++++++++++
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error: aborting due to previous error
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For more information about this error, try `rustc --explain E0277`.
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