error: Pallet indices are conflicting: Both pallets System and Pallet3 are at index 5
 --> $DIR/conflicting_index_2.rs:9:3
  |
9 |         System: system::{} = 5,
  |         ^^^^^^

error: Pallet indices are conflicting: Both pallets System and Pallet3 are at index 5
  --> $DIR/conflicting_index_2.rs:12:3
   |
12 |         Pallet3: pallet3::{},
   |         ^^^^^^^
