Tuple pattern match in for loop

gistfile1.txt

src/lib.rs:210:17: 210:36 error: mismatched types [E0308]
src/lib.rs:210             for (field_name, field) in &numbers_to_check {
                               ^~~~~~~~~~~~~~~~~~~
src/lib.rs:210:17: 210:36 help: run `rustc --explain E0308` to see a detailed explanation
src/lib.rs:210:17: 210:36 note: expected type `&(&str, std::option::Option<tests::PhoneNumber>)`
src/lib.rs:210:17: 210:36 note:    found type `(_, _)`

lib.rs

let numbers_to_check = [
    ("home_number", self.home_number),
    ("cell_number", self.cell_number),
];

for (field_name, field) in &numbers_to_check {
    // ...
}