error[E0658]: the `#[ffi_const]` attribute is an experimental feature | |
--> $DIR/feature-gate-ffi_const.rs:4:5 | |
| | |
LL | #[ffi_const] | |
| ^^^^^^^^^^^^ | |
| | |
= note: see issue #58328 <https://github.com/rust-lang/rust/issues/58328> for more information | |
= help: add `#![feature(ffi_const)]` to the crate attributes to enable | |
error: aborting due to previous error | |
For more information about this error, try `rustc --explain E0658`. |