error[E0425]: cannot find function `always` in this scope
 --> $DIR/leak_prelude.rs:8:13
  |
8 |     assert!(always());
  |             ^^^^^^ not found in this scope
  |
help: possible candidates are found in other modules, you can import them into scope
  |
3 | use predicates::constant::always;
  |
3 | use predicates::prelude::predicate::always;
  |