this derivation will be built:
  /nix/store/hr7z7gsj85dq3b3f4rm15vq7w54bqjsq-bcachefs-module-7.0.0-38-generic.drv
building '/nix/store/hr7z7gsj85dq3b3f4rm15vq7w54bqjsq-bcachefs-module-7.0.0-38-generic.drv'...