these 2 derivations will be built:
  /nix/store/rkwybjc242yw5kaykv2f3cj6x3xa2p8f-flake-inputs.drv
  /nix/store/clb8hvczpi6dmpnh5b3i7qflgmhlqpif-check-flake-inputs.drv
building '/nix/store/rkwybjc242yw5kaykv2f3cj6x3xa2p8f-flake-inputs.drv'
building '/nix/store/clb8hvczpi6dmpnh5b3i7qflgmhlqpif-check-flake-inputs.drv'

upload niks3: ok