1error[E0658]: use of unstable library feature 'cfg_accessible': `cfg_accessible` is not fully implemented 2 --> $DIR/cfg_accessible-unstable.rs:1:3 3 | 4LL | #[cfg_accessible(std)] 5 | ^^^^^^^^^^^^^^ 6 | 7 = note: see issue #64797 <https://github.com/rust-lang/rust/issues/64797> for more information 8 = help: add `#![feature(cfg_accessible)]` to the crate attributes to enable 9 10error: aborting due to previous error 11 12For more information about this error, try `rustc --explain E0658`. 13