this derivation will be built:
  /nix/store/ph35fnx14js4y17id9las2r9cm1iirvn-bcachefs-module-7.0.0-31-generic.drv
building '/nix/store/ph35fnx14js4y17id9las2r9cm1iirvn-bcachefs-module-7.0.0-31-generic.drv'...