error[E0597]: `_thing1` does not live long enough --> $DIR/issue-54556-temps-in-tail-diagnostic.rs:5:11 | LL | D(&_thing1).end() | --^^^^^^^^- | | | | | borrowed value does not live long enough | a temporary with access to the borrow is created here ... LL | } | - `_thing1` dropped here while still borrowed LL | LL | ; | - ... and the borrow might be used here, when that temporary is dropped and runs the `Drop` code for type `D` | = note: The temporary is part of an expression at the end of a block. Consider adding semicolon after the expression so its temporaries are dropped sooner, before the local variables declared by the block are dropped. error: aborting due to previous error For more information about this error, try `rustc --explain E0597`.