these 2 derivations will be built:
  /nix/store/2018myy37qy5lb7prx8x7rjlai7whi9d-flake-inputs.drv
  /nix/store/3d1axd0mkp1h1gy5r4ra6lkmpdqpvrlm-check-flake-inputs.drv
building '/nix/store/2018myy37qy5lb7prx8x7rjlai7whi9d-flake-inputs.drv'
building '/nix/store/3d1axd0mkp1h1gy5r4ra6lkmpdqpvrlm-check-flake-inputs.drv'

upload niks3: ok