this derivation will be built:
  /nix/store/8n5xv43f9553wzrn321nip4h11shgrf3-bcachefs-module-7.0.0-39-generic.drv
building '/nix/store/8n5xv43f9553wzrn321nip4h11shgrf3-bcachefs-module-7.0.0-39-generic.drv'...