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You tried to supply an `Fn`-based type with an incorrect number of arguments
than what was expected.
Erroneous code example:
```compile_fail,E0593
fn foo<F: Fn()>(x: F) { }
fn main() {
// [E0593] closure takes 1 argument but 0 arguments are required
foo(|y| { });
}
```
You have to provide the same number of arguments as expected by the `Fn`-based
type. So to fix the previous example, we need to remove the `y` argument:
```
fn foo<F: Fn()>(x: F) { }
fn main() {
foo(|| { }); // ok!
}
```
|
