error[E0308]: mismatched types
  --> $DIR/ice-6250.rs:12:14
   |
LL |     for reference in vec![1, 2, 3] {
   |         --------- expected due to the type of this binding
...
LL |         Some(reference) = cache.data.get(key) {
   |              ^^^^^^^^^ expected integer, found `&i32`

error[E0308]: mismatched types
  --> $DIR/ice-6250.rs:12:9
   |
LL |         Some(reference) = cache.data.get(key) {
   |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ expected `bool`, found `()`
   |
help: consider adding `let`
   |
LL |         let Some(reference) = cache.data.get(key) {
   |         +++

error: aborting due to 2 previous errors

For more information about this error, try `rustc --explain E0308`.