use std::alloc::{alloc, dealloc, Layout}; //@error-pattern: dereferenced after this allocation got freed fn main() { unsafe { let x = alloc(Layout::from_size_align_unchecked(1, 1)); dealloc(x, Layout::from_size_align_unchecked(1, 1)); dealloc(x, Layout::from_size_align_unchecked(1, 1)); } }