1 error[E0597]: borrowed value does not live long enough
2 --> $DIR/issue-52049.rs:16:10
4 LL | foo(&unpromotable(5u32));
5 | ^^^^^^^^^^^^^^^^^^ temporary value does not live long enough
7 | - temporary value only lives until here
9 = note: borrowed value must be valid for the static lifetime...
11 error: aborting due to previous error
13 For more information about this error, try `rustc --explain E0597`.