error[E0658]: associated type bounds are unstable --> $DIR/missing-assoc-fn.rs:9:22 | LL | fn bat>(_: T) -> Self; | ^^^^^^^^^^ | = note: see issue #52662 for more information = help: add `#![feature(associated_type_bounds)]` to the crate attributes to enable error[E0046]: not all trait items implemented, missing: `foo`, `bar`, `baz`, `bat` --> $DIR/missing-assoc-fn.rs:14:1 | LL | fn foo>(_: T) -> Self; | ------------------------------------------ `foo` from trait LL | fn bar(_: T) -> Self; | ------------------------ `bar` from trait LL | fn baz(_: T) -> Self where T: TraitB, ::Item: Copy; | ------------------------------------------------------------------- `baz` from trait LL | fn bat>(_: T) -> Self; | -------------------------------------------- `bat` from trait ... LL | impl TraitA<()> for S { | ^^^^^^^^^^^^^^^^^^^^^ missing `foo`, `bar`, `baz`, `bat` in implementation error[E0046]: not all trait items implemented, missing: `from_iter` --> $DIR/missing-assoc-fn.rs:19:1 | LL | impl FromIterator<()> for X { | ^^^^^^^^^^^^^^^^^^^^^^^^^^^ missing `from_iter` in implementation | = help: implement the missing item: `fn from_iter>(_: T) -> Self { todo!() }` error: aborting due to 3 previous errors Some errors have detailed explanations: E0046, E0658. For more information about an error, try `rustc --explain E0046`.