#### Note: this error code is no longer emitted by the compiler. An explicit generic argument was provided when calling a function that uses `impl Trait` in argument position. Erroneous code example: ```ignore (no longer an error) fn foo(a: T, b: impl Clone) {} foo::(0i32, "abc".to_string()); ``` Either all generic arguments should be inferred at the call site, or the function definition should use an explicit generic type parameter instead of `impl Trait`. Example: ``` fn foo(a: T, b: impl Clone) {} fn bar(a: T, b: U) {} foo(0i32, "abc".to_string()); bar::(0i32, "abc".to_string()); bar::<_, _>(0i32, "abc".to_string()); bar(0i32, "abc".to_string()); ```