#![feature(allocator_api)] extern crate alloc; use alloc::alloc::Global; use std::alloc::{AllocRef, Layout}; // error-pattern: allocation has size 1 and alignment 1, but gave size 2 and alignment 1 fn main() { unsafe { let x = Global.alloc(Layout::from_size_align_unchecked(1, 1)).unwrap().0; Global.dealloc(x, Layout::from_size_align_unchecked(2, 1)); } }