Rollup merge of #106944 - Nilstrieb:there-once-was-a-diagnostic, r=WaffleLapkin

[rust.git] / tests / ui / box / alloc-unstable-fail.rs

use std::boxed::Box;

fn main() {
    let _boxed: Box<u32, _> = Box::new(10);
    //~^ ERROR use of unstable library feature 'allocator_api'
}