error[E0658]: `cfg(sanitize)` is experimental and subject to change --> $DIR/feature-gate-cfg_sanitize.rs:1:11 | LL | #[cfg(not(sanitize = "thread"))] | ^^^^^^^^^^^^^^^^^^^ | = note: see issue #39699 for more information = help: add `#![feature(cfg_sanitize)]` to the crate attributes to enable error: aborting due to 1 previous error For more information about this error, try `rustc --explain E0658`.