error: this binding can be a slice pattern to avoid indexing
  --> $DIR/index_refutable_slice.rs:5:17
   |
LL |     if let Some(slice) = slice {
   |                 ^^^^^
   |
note: the lint level is defined here
  --> $DIR/index_refutable_slice.rs:1:9
   |
LL | #![deny(clippy::index_refutable_slice)]
   |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
help: try using a slice pattern here
   |
LL |     if let Some([_, _, _, _, _, _, _, slice_7, ..]) = slice {
   |                 ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
help: and replace the index expressions here
   |
LL |         println!("{}", slice_7);
   |                        ~~~~~~~

error: aborting due to previous error