Syntax: ignoring tuple index with a suffix (a.1lolololol)

fn main() {
    let a = (1, 2, 3);
    println!("{}", a.1lolololol);
}

Expected:

ERROR: tuple index with a suffix is invalid

Got:

Output: 2\n

UPD:

The same error arises with tuple struct:

struct X(i32,i32,i32);

fn main() {
    let a = X(1, 2, 3);
    let b = a.1lolololol;
    println!("{}", b);
}

Expected:

ERROR: tuple index with a suffix is invalid

Got:

Output: 2\n

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