error[E0658]: the semantics of constant patterns is not yet settled | |
--> $DIR/feature-gate.rs:13:1 | |
| | |
LL | #[structural_match] | |
| ^^^^^^^^^^^^^^^^^^^ | |
| | |
= note: for more information, see https://github.com/rust-lang/rust/issues/31434 | |
= help: add `#![feature(structural_match)]` to the crate attributes to enable | |
error: aborting due to previous error | |
For more information about this error, try `rustc --explain E0658`. |