this derivation will be built:
  /nix/store/akz9pg2a60y4s3rpdy30hd7gk46vk0q6-bcachefs-module-7.0.0-38-generic.drv
building '/nix/store/akz9pg2a60y4s3rpdy30hd7gk46vk0q6-bcachefs-module-7.0.0-38-generic.drv'...