structuredAttrs is enabled

trying https://github.com/durch/rust-s3/commit/4c7ed2b44d6fbf1ebdd401dd3a81c14d288cffb2.patch
  % Total    % Received % Xferd  Average Speed  Time    Time    Time   Current
                                 Dload  Upload  Total   Spent   Left   Speed

  0      0   0      0   0      0      0      0                              0
100   1303 100   1303   0      0   2532      0                              0
100   1303 100   1303   0      0   2532      0                              0
100   1303 100   1303   0      0   2531      0                              0