nix/tests/functional/lang/parse-fail-mixed-nested-attrs2.err.exp

error: attribute 'x.y.y' already defined at «stdin»:2:3
       at «stdin»:3:9:
            2|   x.y.y = 3;
            3|   x = { y.y= 3; z = 3; };
             |         ^
            4| }