cbdocloader fails to load sample bucket with Raw IPv6 address

[ns_server:debug,2018-09-26T14:00:13.926-07:00,n_0@::1:<0.3082.0>:samples_loader_tasks:wait_for_exit:129]output from beer-sample: "2018/09/26 14:00:13 10 consecutive timeouts occurred, client exiting\n2018/09/26 14:00:13 10 consecutive timeouts occurred, client exiting\n"[ns_server:debug,2018-09-26T14:00:16.399-07:00,n_0@::1:<0.3082.0>:samples_loader_tasks:wait_for_exit:129]output from beer-sample: "2018/09/26 14:00:16 Loaded 20 items into the beer-sample bucket\n"

[ns_server:debug,2018-09-26T14:00:21.401-07:00,n_0@::1:<0.3082.0>:samples_loader_tasks:wait_for_exit:129]output from beer-sample: "Errors occurred during the index creation phase. See logs for details.\n"

[ns_server:debug,2018-09-26T14:00:21.405-07:00,n_0@::1:samples_loader_tasks<0.283.0>:samples_loader_tasks:handle_info:72]Consumed exit signal from samples loading task beer-sample: {'EXIT',

                                                             <0.3082.0>,

                                                             {failed_to_load_samples_with_status,

                                                              1}}

[user:error,2018-09-26T14:00:21.405-07:00,n_0@::1:samples_loader_tasks<0.283.0>:samples_loader_tasks:handle_info:92]Loading sample bucket beer-sample failed: {failed_to_load_samples_with_status,

                                           1}

[ns_server:debug,2018-09-26T14:00:21.405-07:00,n_0@::1:samples_loader_tasks<0.283.0>:samples_loader_tasks:handle_info:98]Token holder died

[error_logger:error,2018-09-26T14:00:21.405-07:00,n_0@::1:error_logger<0.6.0>:ale_error_logger_handler:do_log:203]

=========================CRASH REPORT=========================

  crasher:

    initial call: samples_loader_tasks:perform_loading_task/2

    pid: <0.3082.0>

    registered_name: []

    exception exit: {failed_to_load_samples_with_status,1}

      in function  samples_loader_tasks:perform_loading_task/2 (src/samples_loader_tasks.erl, line 173)

    ancestors: [samples_loader_tasks,ns_server_sup,ns_server_nodes_sup,

                  <0.170.0>,ns_server_cluster_sup,<0.89.0>]

    messages: []

    links: [<0.283.0>]

    dictionary: []

    trap_exit: false

    status: running

    heap_size: 2586

    stack_size: 27

    reductions: 32702

  neighbours: