File: really-long-type-in-let-binding-without-sufficient-type-info.rs

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rustc 1.88.0%2Bdfsg1-1
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type A = (i32, i32, i32, i32);
type B = (A, A, A, A);
type C = (B, B, B, B);
type D = (C, C, C, C);

fn foo(x: D) {
    let y = Err(x); //~ ERROR type annotations needed for `Result<_
}

fn main() {}