okay, changed that, now trying to figure out the right `use` statement:
`use stm32f1xx_hal::{adc, pac, prelude::*, timer::{Channel, Tim2NoRemap}, gpio::{Analog}};` got it to stop complaining about the Analog part but I still get 
```
error[E0405]: cannot find trait `ErasedPin` in this scope
  --> src/main.rs:67:24
   |
67 |     let input_pins: [&dyn ErasedPin<Analog>; 2] = [
   |                           ^^^^^^^^^ not found in this scope

```
even if I add the gpio::Pin thing