message: Downgrade arbitrary for Rust < 1.51
diff: @@ -37,6 +37,9 @@ if [ -n "${NO_STD_FEATURES[*]}" ]; then
  echo " no_std supported features: ${NO_STD_FEATURES[*]}"
  fi
  +# arbitrary 1.0.1 added const-generic arrays, which requires Rust 1.51
  +check_version 1.51.0 || cargo update -p arbitrary --precise 1.0.0
  +
  set -x
  # test the default with std
  