1error[E0119]: conflicting implementations of trait `Unpin` for type `Struct<_>` 2 --> tests/ui/unstable-features/overlapping_marker_traits-feature-gate.rs:9:1 3 | 49 | #[pin_project] //~ ERROR E0119 5 | ^^^^^^^^^^^^^^ conflicting implementation for `Struct<_>` 6... 716 | impl<T> Unpin for Struct<T> {} 8 | --------------------------- first implementation here 9 | 10 = note: this error originates in the derive macro `::pin_project::__private::__PinProjectInternalDerive` (in Nightly builds, run with -Z macro-backtrace for more info) 11