error[E0624]: associated function `new` is private
  --> $DIR/static-method-privacy.rs:9:19
   |
LL |         fn new() -> S { S }
   |         ------------- private associated function defined here
...
LL |     let _ = a::S::new();
   |                   ^^^ private associated function

error: aborting due to 1 previous error

For more information about this error, try `rustc --explain E0624`.