error[E0599]: no variant or associated item named `UnknownInterrupt` found for enum `Interrupt` in the current scope
 --> $DIR/unknown-interrupt.rs:3:47
  |
3 | #[rtic::app(device = lm3s6965, dispatchers = [UnknownInterrupt])]
  |                                               ^^^^^^^^^^^^^^^^ variant or associated item not found in `Interrupt`