error[E0046]: not all trait items implemented, missing: `Gat`
  --> $DIR/missing-item-sugg.rs:6:1
   |
LL | impl missing_item_sugg::Foo for Local {
   | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ missing `Gat` in implementation
   |
   = help: implement the missing item: `type Gat<T> = /* Type */ where T: std::fmt::Display;`

error: aborting due to previous error

For more information about this error, try `rustc --explain E0046`.