For example, drop glue generated for struct below, doesn't have any statements, only terminators. Previously it received an estimate of 0, the new estimate is 13 (6+5 drop terminators, +1 resume, +1 return). struct S { a: String, b: String, c: String, d: String, e: String, f: String, } Originally reported in https://github.com/rust-lang/rust/issues/69382#issue-569392141