error[E0282]: type annotations needed --> $DIR/method-and-field-eager-resolution.rs:5:5 | LL | let mut x = Default::default(); | ----- consider giving `x` a type LL | x.0; | ^ cannot infer type | = note: type must be known at this point error[E0282]: type annotations needed --> $DIR/method-and-field-eager-resolution.rs:12:5 | LL | let mut x = Default::default(); | ----- consider giving `x` a type LL | x[0]; | ^ cannot infer type | = note: type must be known at this point error: aborting due to 2 previous errors For more information about this error, try `rustc --explain E0282`.