these 2 derivations will be built:
  /nix/store/5jv0r7n4snkcxdsf5a8j9wyj3ja4bn1h-flake-inputs.drv
  /nix/store/8f5fy4sf3hdbx725nzlliynaicvqj42p-check-flake-inputs.drv
building '/nix/store/5jv0r7n4snkcxdsf5a8j9wyj3ja4bn1h-flake-inputs.drv'
building '/nix/store/8f5fy4sf3hdbx725nzlliynaicvqj42p-check-flake-inputs.drv'

upload niks3: ok