src/test/ui/impl-trait/issues/issue-92305.stderr

   1 error[E0107]: missing generics for struct `Vec`
   2   --> $DIR/issue-92305.rs:5:45
   3    |
   4 LL | fn f<T>(data: &[T]) -> impl Iterator<Item = Vec> {
   5    |                                             ^^^ expected at least 1 generic argument
   6    |
   7 note: struct defined here, with at least 1 generic parameter: `T`
   8   --> $SRC_DIR/alloc/src/vec/mod.rs:LL:COL
   9    |
  10 LL | pub struct Vec<T, #[unstable(feature = "allocator_api", issue = "32838")] A: Allocator = Global> {
  11    |            ^^^ -
  12 help: add missing generic argument
  13    |
  14 LL | fn f<T>(data: &[T]) -> impl Iterator<Item = Vec<T>> {
  15    |                                             ~~~~~~
  16
  17 error[E0282]: type annotations needed
  18   --> $DIR/issue-92305.rs:7:5
  19    |
  20 LL |     iter::empty()
  21    |     ^^^^^^^^^^^ cannot infer type of the type parameter `T` declared on the function `empty`
  22    |
  23 help: consider specifying the generic argument
  24    |
  25 LL |     iter::empty::<T>()
  26    |                +++++
  27
  28 error[E0282]: type annotations needed
  29   --> $DIR/issue-92305.rs:10:35
  30    |
  31 LL | fn g<T>(data: &[T], target: T) -> impl Iterator<Item = Vec<T>> {
  32    |                                   ^^^^^^^^^^^^^^^^^^^^^^^^^^^^ cannot infer type
  33
  34 error: aborting due to 3 previous errors
  35
  36 Some errors have detailed explanations: E0107, E0282.
  37 For more information about an error, try `rustc --explain E0107`.