these 2 derivations will be built:
  /nix/store/y6f1h3k3hkjrp2vk7wcnqh21z92xd7yv-flake-inputs.drv
  /nix/store/n17mgqbzck026ncwv638lyah405mm10r-check-flake-inputs.drv
building '/nix/store/y6f1h3k3hkjrp2vk7wcnqh21z92xd7yv-flake-inputs.drv'
building '/nix/store/n17mgqbzck026ncwv638lyah405mm10r-check-flake-inputs.drv'

upload niks3: ok