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error[E0277]: the trait bound `&Box<dyn Fn() -> i32>: Foo` is not satisfied
--> $DIR/call-on-unimplemented-with-autoderef.rs:8:15
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LL | needs_foo(x);
| --------- ^ the trait `Foo` is not implemented for `&Box<dyn Fn() -> i32>`
| |
| required by a bound introduced by this call
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note: required by a bound in `needs_foo`
--> $DIR/call-on-unimplemented-with-autoderef.rs:5:22
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LL | fn needs_foo(_: impl Foo) {}
| ^^^ required by this bound in `needs_foo`
help: use parentheses to call this trait object
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LL | needs_foo(x());
| ++
error: aborting due to previous error
For more information about this error, try `rustc --explain E0277`.
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