this derivation will be built:
  /nix/store/4z9h6rmqw55923vddyyvlikgbljad0p0-nix-shell.drv
building '/nix/store/4z9h6rmqw55923vddyyvlikgbljad0p0-nix-shell.drv'
nix-shell> Running phase: buildPhase

upload niks3: ok