| error[E0658]: use of unstable library feature 'allocator_api' |
| --> $DIR/alloc-unstable-fail.rs:4:26 |
| | |
| LL | let _boxed: Box<u32, _> = Box::new(10); |
| | ^ |
| | |
| = note: see issue #32838 <https://github.com/rust-lang/rust/issues/32838> for more information |
| = help: add `#![feature(allocator_api)]` to the crate attributes to enable |
| = note: this compiler was built on YYYY-MM-DD; consider upgrading it if it is out of date |
| |
| error: aborting due to 1 previous error |
| |
| For more information about this error, try `rustc --explain E0658`. |
