this derivation will be built:
  /nix/store/znwv44j4nzbf2c84gpp9fh4375pr55ma-nix-shell.drv
building '/nix/store/znwv44j4nzbf2c84gpp9fh4375pr55ma-nix-shell.drv'
nix-shell> Running phase: buildPhase

upload niks3: ok