this derivation will be built:
  /nix/store/fra8b6flz3n1qpjl30p83l8sbq2bjh2k-bcachefs-module-7.0.0-29-generic.drv
building '/nix/store/fra8b6flz3n1qpjl30p83l8sbq2bjh2k-bcachefs-module-7.0.0-29-generic.drv'...