1error[E0119]: conflicting implementations of trait `std::marker::Unpin` for type `Struct<_>`: 2 --> $DIR/marker_trait_attr.rs:12:1 3 | 412 | #[pin_project] //~ ERROR E0119 5 | ^^^^^^^^^^^^^^ conflicting implementation for `Struct<_>` 6... 719 | impl<T> Unpin for Struct<T> {} 8 | --------------------------- first implementation here 9 | 10 = note: this error originates in a derive macro (in Nightly builds, run with -Z macro-backtrace for more info) 11