1 error[E0658]: the `#[default_lib_allocator]` attribute is an experimental feature
2 --> $DIR/feature-gate-allocator_internals.rs:11:1
4 LL | #![default_lib_allocator] //~ ERROR: attribute is an experimental feature
5 | ^^^^^^^^^^^^^^^^^^^^^^^^^
7 = help: add #![feature(allocator_internals)] to the crate attributes to enable
9 error: aborting due to previous error
11 For more information about this error, try `rustc --explain E0658`.