this derivation will be built:
  /nix/store/00xk7bp6jc74xv3r7203ahnly519pri1-nix-shell.drv
building '/nix/store/00xk7bp6jc74xv3r7203ahnly519pri1-nix-shell.drv'
nix-shell> Running phase: buildPhase

upload niks3: ok