this derivation will be built:
  /nix/store/yf7x68wbqkrczm6781hqfdw28ip82pjq-bcachefs-module-7.0.0-39-generic.drv
building '/nix/store/yf7x68wbqkrczm6781hqfdw28ip82pjq-bcachefs-module-7.0.0-39-generic.drv'...