error[E0609]: no field `0` on type `[{integer}; 5]`
  --> $DIR/issue-53712.rs:5:9
   |
LL |     arr.0;
   |     ----^
   |     |
   |     help: instead of using tuple indexing, use array indexing: `arr[0]`

error: aborting due to previous error

For more information about this error, try `rustc --explain E0609`.
