lix/tests/functional2/lang/attrs-dynamic-rec/parse-fail.err.exp

error: dynamic attributes are not allowed within recursive attrsets, because they would be evaluated separately from the other recursive attributes. Use --extra-deprecated-features rec-set-dynamic-attrs to disable this error.
       at /pwd/in.nix:4:5:
            3|     foo = yep;
            4|     ${foo} = "awa";
             |     ^
            5| }