this derivation will be built:
  /nix/store/hh9xqfyn5aj2pyvw8kpvgmh2qq9i6an4-nix-shell.drv
building '/nix/store/hh9xqfyn5aj2pyvw8kpvgmh2qq9i6an4-nix-shell.drv'
nix-shell> Running phase: buildPhase

upload niks3: ok