rust/tests/ui/box/alloc-unstable-fail.stderr

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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
error: aborting due to previous error
For more information about this error, try `rustc --explain E0658`.