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An invalid number of generic parameters was passed to an intrinsic function.

Erroneous code example:

```compile_fail,E0094
#![feature(intrinsics)]
#![allow(internal_features)]

#[rustc_intrinsic]
fn size_of<T, U>() -> usize; // error: intrinsic has wrong number
                             //        of type parameters
```

Please check that you provided the right number of type parameters
and verify with the function declaration in the Rust source code.
Example:

```
#![feature(intrinsics)]
#![allow(internal_features)]

#[rustc_intrinsic]
fn size_of<T>() -> usize; // ok!
```