| error: implementing `rustc_specialization_trait` traits is unstable | |
| --> $DIR/impl_specialization_trait.rs:11:1 | |
| | | |
| LL | impl specialization_trait::SpecTrait for A { | |
| | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ | |
| | | |
| = help: add `#![feature(min_specialization)]` to the crate attributes to enable | |
| error: aborting due to 1 previous error | |