trying https://static.crates.io/crates/webrtc-dtls/0.12.0/download
  % Total    % Received % Xferd  Average Speed  Time    Time    Time   Current
                                 Dload  Upload  Total   Spent   Left   Speed

  0      0   0      0   0      0      0      0                              0
100 143.2k 100 143.2k   0      0  2.84M      0                              0
100 143.2k 100 143.2k   0      0  2.83M      0                              0
100 143.2k 100 143.2k   0      0  2.83M      0                              0