error[E0658]: specialization is unstable | |
--> $DIR/specialization-feature-gate-default.rs:10:5 | |
| | |
LL | default fn foo(&self) {} | |
| ^^^^^^^^^^^^^^^^^^^^^^^^ | |
| | |
= note: for more information, see https://github.com/rust-lang/rust/issues/31844 | |
= help: add `#![feature(specialization)]` to the crate attributes to enable | |
error: aborting due to previous error | |
For more information about this error, try `rustc --explain E0658`. |