M9names[m]: ```rust
error[E0603]: crate `pac` is private
  --> src/main.rs:33:17
   |
33 |     embassy_rp::pac::SIO.spinlock(31).write_value(1);
   |                 ^^^  --- constant `SIO` is not publicly re-exported
   |                 |
   |                 private crate
```
Wait, doesn't this get re-exported as `pub use rp_pac as pac`?