this derivation will be built:
  /nix/store/wlkm5nni61z4qgfy9iv6r7shira65qi2-nix-shell.drv
building '/nix/store/wlkm5nni61z4qgfy9iv6r7shira65qi2-nix-shell.drv'
nix-shell> Running phase: buildPhase

upload niks3: ok