--- source: bin/tests/main.rs expression: "&out" --- [W02] Warning: Useless let-in expression ╭─[data/empty_let_in.nix:1:1] │ 1 │ ╭─▶ let 3 │ ├─▶ null · │ · ╰──────────── This let-in expression has no entries ───╯