this derivation will be built:
  /nix/store/1gy96iynfmfq6p2q7y4zywjf99n1pypp-bcachefs-module-7.0.0-26-generic.drv
building '/nix/store/1gy96iynfmfq6p2q7y4zywjf99n1pypp-bcachefs-module-7.0.0-26-generic.drv'...