structuredAttrs is enabled

trying https://static.crates.io/crates/sharded-slab/0.1.7/download
  % Total    % Received % Xferd  Average Speed  Time    Time    Time   Current
                                 Dload  Upload  Total   Spent   Left   Speed
100  58227 100  58227   0      0  2.97M      0                              0