this derivation will be built:
  /nix/store/8agcmplg0fh986sr4xv6q4ni22359p3m-nix-shell.drv
building '/nix/store/8agcmplg0fh986sr4xv6q4ni22359p3m-nix-shell.drv'
nix-shell> Running phase: buildPhase

upload niks3: ok