these 2 derivations will be built:
  /nix/store/6vnq05pfns0zik527j1zf4wwhgrjbfvc-flake-inputs.drv
  /nix/store/2wbyjbq51cxxv66c45dmp3rxhx9dabi7-check-flake-inputs.drv
building '/nix/store/6vnq05pfns0zik527j1zf4wwhgrjbfvc-flake-inputs.drv'
building '/nix/store/2wbyjbq51cxxv66c45dmp3rxhx9dabi7-check-flake-inputs.drv'

upload niks3: ok