these 2 derivations will be built:
  /nix/store/ac8f05384sp0qjzwab69bm4rg3isbffw-flake-inputs.drv
  /nix/store/fpy5kihm0qxvqhp1j9cz9jssww38dfpr-check-flake-inputs.drv
building '/nix/store/ac8f05384sp0qjzwab69bm4rg3isbffw-flake-inputs.drv'
building '/nix/store/fpy5kihm0qxvqhp1j9cz9jssww38dfpr-check-flake-inputs.drv'

upload niks3: ok