this derivation will be built:
  /nix/store/nkqb2zv9hb82wiw7r5wdc21xvg4jlbsh-nix-shell.drv
building '/nix/store/nkqb2zv9hb82wiw7r5wdc21xvg4jlbsh-nix-shell.drv'
nix-shell> Running phase: buildPhase

upload niks3: ok