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error[E0277]: expected a `Fn<()>` closure, found `T`
--> $DIR/issue-68645-codegen-fulfillment.rs:14:18
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LL | type F<'a> = Self;
| ^^^^ expected an `Fn<()>` closure, found `T`
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= note: wrap the `T` in a closure with no arguments: `|| { /* code */ }`
note: required by a bound in `Fun::F`
--> $DIR/issue-68645-codegen-fulfillment.rs:6:17
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LL | type F<'a>: Fn() -> u32;
| ^^^^^^^^^^^ required by this bound in `Fun::F`
help: consider restricting type parameter `T`
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LL | impl<T: std::ops::Fn<()>> Fun for T {
| ++++++++++++++++++
error: aborting due to previous error
For more information about this error, try `rustc --explain E0277`.
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