error[E0277]: `PhantomPinned` cannot be unpinned
  --> tests/ui/enum_derive/unpin.rs:12:1
   |
12 | #[enum_derive(Future)] //~ ERROR cannot be unpinned
   | ^^^^^^^^^^^^^^^^^^^^^^ within `PinnedFuture`, the trait `Unpin` is not implemented for `PhantomPinned`, which is required by `PinnedFuture: Unpin`
   |
   = note: consider using the `pin!` macro
           consider using `Box::pin` if you need to access the pinned value outside of the current scope
note: required because it appears within the type `PinnedFuture`
  --> tests/ui/enum_derive/unpin.rs:17:8
   |
17 | struct PinnedFuture(PhantomPinned);
   |        ^^^^^^^^^^^^
   = help: see issue #48214
   = note: this error originates in the attribute macro `enum_derive` (in Nightly builds, run with -Z macro-backtrace for more info)
help: add `#![feature(trivial_bounds)]` to the crate attributes to enable
   |
3  + #![feature(trivial_bounds)]
   |

error[E0277]: `PhantomPinned` cannot be unpinned
  --> tests/ui/enum_derive/unpin.rs:28:16
   |
28 |     is_unpin::<Enum1>();
   |                ^^^^^ within `PinnedFuture`, the trait `Unpin` is not implemented for `PhantomPinned`, which is required by `Enum1: Unpin`
   |
   = note: consider using the `pin!` macro
           consider using `Box::pin` if you need to access the pinned value outside of the current scope
note: required because it appears within the type `PinnedFuture`
  --> tests/ui/enum_derive/unpin.rs:17:8
   |
17 | struct PinnedFuture(PhantomPinned);
   |        ^^^^^^^^^^^^
note: required for `Enum1` to implement `Unpin`
  --> tests/ui/enum_derive/unpin.rs:12:1
   |
12 | #[enum_derive(Future)] //~ ERROR cannot be unpinned
   | ^^^^^^^^^^^^^^^^^^^^^^ unsatisfied trait bound introduced here
13 | enum Enum1 {
   |      ^^^^^
note: required by a bound in `is_unpin`
  --> tests/ui/enum_derive/unpin.rs:27:20
   |
27 |     fn is_unpin<T: Unpin>() {}
   |                    ^^^^^ required by this bound in `is_unpin`
   = note: this error originates in the attribute macro `enum_derive` (in Nightly builds, run with -Z macro-backtrace for more info)