error[E0658]: generic associated types are unstable
  --> $DIR/gat-dont-ice-on-absent-feature.rs:7:5
   |
LL |     type Item<'b> = &'b Foo;
   |     ^^^^^^^^^^^^^^^^^^^^^^^^
   |
   = note: for more information, see https://github.com/rust-lang/rust/issues/44265
   = help: add `#![feature(generic_associated_types)]` to the crate attributes to enable

error: aborting due to previous error

For more information about this error, try `rustc --explain E0658`.