error:
       … while calling the 'deepSeq' builtin
         at /pwd/lang/eval-fail-deepseq-list-attr.nix:3:1:
            2|
            3| builtins.deepSeq [
             | ^
            4|   1

       … while evaluating list element at index 1

       … while evaluating the attribute 'b'
         at /pwd/lang/eval-fail-deepseq-list-attr.nix:7:5:
            6|     a = 2;
            7|     b = throw "error in attr in list element";
             |     ^
            8|   }

       … while calling the 'throw' builtin
         at /pwd/lang/eval-fail-deepseq-list-attr.nix:7:9:
            6|     a = 2;
            7|     b = throw "error in attr in list element";
             |         ^
            8|   }

       error: error in attr in list element