these 2 derivations will be built:
  /nix/store/2y5hd3xi9n84r2lk29ykb06blkwiwqhd-flake-inputs.drv
  /nix/store/1ard6gy1cmhv4hcxa8p3xpzzcipxsbdm-check-flake-inputs.drv
building '/nix/store/2y5hd3xi9n84r2lk29ykb06blkwiwqhd-flake-inputs.drv'
building '/nix/store/1ard6gy1cmhv4hcxa8p3xpzzcipxsbdm-check-flake-inputs.drv'

upload niks3: ok