structuredAttrs is enabled

trying https://github.com/jbeder/yaml-cpp/archive/0.8.0.tar.gz
  % Total    % Received % Xferd  Average Speed  Time    Time    Time   Current
                                 Dload  Upload  Total   Spent   Left   Speed
  0      0   0      0   0      0      0      0                              0
100 993.3k 100 993.3k   0      0  2.00M      0                              0
unpacking source archive /build/download.tar.gz