this derivation will be built:
  /nix/store/zrvg9f2z6d4p603yfmpbchyfr5v6wvbb-nix-shell.drv
building '/nix/store/zrvg9f2z6d4p603yfmpbchyfr5v6wvbb-nix-shell.drv'
nix-shell> Running phase: buildPhase

upload niks3: ok