src/test/ui/feature-gates/feature-gate-alloc-error-handler.rs

// compile-flags:-C panic=abort

#![no_std]
#![no_main]

use core::alloc::Layout;

#[alloc_error_handler] //~ ERROR the `#[alloc_error_handler]` attribute is an experimental feature
fn oom(info: Layout) -> ! {
    loop {}
}

#[panic_handler]
fn panic(_: &core::panic::PanicInfo) -> ! { loop {} }