Lambdas have terrible errors

fn test() {
    // unsafe {
        let lambda = fn() { method(); };
        lambda();
    // }
}


error: Expected lambda to be a unit
  ┌─ testinput:6:9
  │
5 │         let lambda = fn() { method(); };
  │             ------ lambda is a variable
6 │         lambda();
  │         ^^^^^^ Expected a unit

error: Values of type uint<1> must be used
  ┌─ testinput:6:9
  │
6 │         lambda();
  │         ^^^^^^^^ This must be used
  │
  = consider discarding value explicitly
  │
6 │         let _ = lambda();
  │         ++++++++

• Where does the uint<1> come from?
• Help on how to call lambdas when used as unit