anchor.diff:  -spec format_error(any()) -> iolist().
   format_error({unknown_app, Unknown}) ->
       io_lib:format("Applications list for shell contains an unrecognizable application definition: ~p", [Unknown]);
  +format_error({eval_parse, Exp, Msg}) ->
  +    io_lib:format("Failed to parse -eval expression: \"~ts\". Error message: ~ts", [Exp, Msg]);
  +format_error({eval_exprs, Exp, {C, E, S}}) ->
  +    ?DEBUG("--eval failure details: ~p:~p~nStacktrace: ~p", [C, E, S]),
  +    io_lib:format("Failed to evaluate expression: \"~ts\". Error: ~p:~p. Run with DIAGNOSTIC=1 to stacktrace or consult rebar3.crashdump", [Exp, C, E]);
   format_error(Reason) ->
       io_lib:format("~p", [Reason]).
   
  
positive.code: 
  eval(Expression) ->
      {ok, Tokens, _} = erl_scan:string(Expression),
      {ok, Parsed} = erl_parse:parse_exprs(Tokens),
      {value, Result, _} = erl_eval:exprs(Parsed, []),
      Result.
  
  setup_name(State) ->
      {Long, Short, Opts} = rebar_dist_utils:find_options(State),
  
negative.code:     Exprs = find_evals_to_run(State),
      lists:map(fun(Expr) ->
          ?INFO("Evaluating: ~p",[Expr]),
          {ok, _} = eval(Expr)
      end, Exprs).
  
  find_evals_to_run(State) ->
  