1 error[E0658]: the `#[alloc_error_handler]` attribute is an experimental feature
2 --> $DIR/feature-gate-alloc-error-handler.rs:8:1
4 LL | #[alloc_error_handler]
5 | ^^^^^^^^^^^^^^^^^^^^^^
7 = note: see issue #51540 <https://github.com/rust-lang/rust/issues/51540> for more information
8 = help: add `#![feature(alloc_error_handler)]` to the crate attributes to enable
10 error: aborting due to previous error
12 For more information about this error, try `rustc --explain E0658`.