// EMIT_MIR_FOR_EACH_PANIC_STRATEGY #![feature(rustc_attrs, stmt_expr_attributes)] // EMIT_MIR box_expr.main.ElaborateDrops.before.mir fn main() { let x = #[rustc_box] Box::new(S::new()); drop(x); } struct S; impl S { fn new() -> Self { S } } impl Drop for S { fn drop(&mut self) { println!("splat!"); } }