error: associated type bounds are not allowed within structs, enums, or unions
  --> $DIR/inside-adt.rs:5:29
   |
LL | struct S1 { f: dyn Iterator<Item: Copy> }
   |                             ^^^^^^^^^^

error: associated type bounds are not allowed within structs, enums, or unions
  --> $DIR/inside-adt.rs:7:33
   |
LL | struct S2 { f: Box<dyn Iterator<Item: Copy>> }
   |                                 ^^^^^^^^^^

error: associated type bounds are not allowed within structs, enums, or unions
  --> $DIR/inside-adt.rs:9:29
   |
LL | struct S3 { f: dyn Iterator<Item: 'static> }
   |                             ^^^^^^^^^^^^^

error: associated type bounds are not allowed within structs, enums, or unions
  --> $DIR/inside-adt.rs:12:26
   |
LL | enum E1 { V(dyn Iterator<Item: Copy>) }
   |                          ^^^^^^^^^^

error: associated type bounds are not allowed within structs, enums, or unions
  --> $DIR/inside-adt.rs:15:30
   |
LL | enum E2 { V(Box<dyn Iterator<Item: Copy>>) }
   |                              ^^^^^^^^^^

error: associated type bounds are not allowed within structs, enums, or unions
  --> $DIR/inside-adt.rs:17:26
   |
LL | enum E3 { V(dyn Iterator<Item: 'static>) }
   |                          ^^^^^^^^^^^^^

error: associated type bounds are not allowed within structs, enums, or unions
  --> $DIR/inside-adt.rs:21:41
   |
LL | union U1 { f: ManuallyDrop<dyn Iterator<Item: Copy>> }
   |                                         ^^^^^^^^^^

error: associated type bounds are not allowed within structs, enums, or unions
  --> $DIR/inside-adt.rs:24:45
   |
LL | union U2 { f: ManuallyDrop<Box<dyn Iterator<Item: Copy>>> }
   |                                             ^^^^^^^^^^

error: associated type bounds are not allowed within structs, enums, or unions
  --> $DIR/inside-adt.rs:26:41
   |
LL | union U3 { f: ManuallyDrop<dyn Iterator<Item: 'static>> }
   |                                         ^^^^^^^^^^^^^

error[E0277]: the size for values of type `(dyn Iterator<Item = impl Copy> + 'static)` cannot be known at compilation time
  --> $DIR/inside-adt.rs:12:13
   |
LL | enum E1 { V(dyn Iterator<Item: Copy>) }
   |             ^^^^^^^^^^^^^^^^^^^^^^^^ doesn't have a size known at compile-time
   |
   = help: the trait `Sized` is not implemented for `(dyn Iterator<Item = impl Copy> + 'static)`
   = note: no field of an enum variant may have a dynamically sized type
   = help: change the field's type to have a statically known size
help: borrowed types always have a statically known size
   |
LL | enum E1 { V(&dyn Iterator<Item: Copy>) }
   |             +
help: the `Box` type always has a statically known size and allocates its contents in the heap
   |
LL | enum E1 { V(Box<dyn Iterator<Item: Copy>>) }
   |             ++++                        +

error[E0277]: the size for values of type `(dyn Iterator<Item = impl Sized + 'static> + 'static)` cannot be known at compilation time
  --> $DIR/inside-adt.rs:17:13
   |
LL | enum E3 { V(dyn Iterator<Item: 'static>) }
   |             ^^^^^^^^^^^^^^^^^^^^^^^^^^^ doesn't have a size known at compile-time
   |
   = help: the trait `Sized` is not implemented for `(dyn Iterator<Item = impl Sized + 'static> + 'static)`
   = note: no field of an enum variant may have a dynamically sized type
   = help: change the field's type to have a statically known size
help: borrowed types always have a statically known size
   |
LL | enum E3 { V(&dyn Iterator<Item: 'static>) }
   |             +
help: the `Box` type always has a statically known size and allocates its contents in the heap
   |
LL | enum E3 { V(Box<dyn Iterator<Item: 'static>>) }
   |             ++++                           +

error[E0277]: the size for values of type `(dyn Iterator<Item = impl Copy> + 'static)` cannot be known at compilation time
  --> $DIR/inside-adt.rs:21:15
   |
LL | union U1 { f: ManuallyDrop<dyn Iterator<Item: Copy>> }
   |               ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ doesn't have a size known at compile-time
   |
   = help: within `ManuallyDrop<(dyn Iterator<Item = impl Copy> + 'static)>`, the trait `Sized` is not implemented for `(dyn Iterator<Item = impl Copy> + 'static)`
   = note: required because it appears within the type `ManuallyDrop<(dyn Iterator<Item = impl Copy> + 'static)>`
   = note: no field of a union may have a dynamically sized type
   = help: change the field's type to have a statically known size
help: borrowed types always have a statically known size
   |
LL | union U1 { f: &ManuallyDrop<dyn Iterator<Item: Copy>> }
   |               +
help: the `Box` type always has a statically known size and allocates its contents in the heap
   |
LL | union U1 { f: Box<ManuallyDrop<dyn Iterator<Item: Copy>>> }
   |               ++++                                      +

error[E0277]: the size for values of type `(dyn Iterator<Item = impl Sized + 'static> + 'static)` cannot be known at compilation time
  --> $DIR/inside-adt.rs:26:15
   |
LL | union U3 { f: ManuallyDrop<dyn Iterator<Item: 'static>> }
   |               ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ doesn't have a size known at compile-time
   |
   = help: within `ManuallyDrop<(dyn Iterator<Item = impl Sized + 'static> + 'static)>`, the trait `Sized` is not implemented for `(dyn Iterator<Item = impl Sized + 'static> + 'static)`
   = note: required because it appears within the type `ManuallyDrop<(dyn Iterator<Item = impl Sized + 'static> + 'static)>`
   = note: no field of a union may have a dynamically sized type
   = help: change the field's type to have a statically known size
help: borrowed types always have a statically known size
   |
LL | union U3 { f: &ManuallyDrop<dyn Iterator<Item: 'static>> }
   |               +
help: the `Box` type always has a statically known size and allocates its contents in the heap
   |
LL | union U3 { f: Box<ManuallyDrop<dyn Iterator<Item: 'static>>> }
   |               ++++                                         +

error: aborting due to 13 previous errors

For more information about this error, try `rustc --explain E0277`.