this derivation will be built:
  /nix/store/m7vj5a4243y6shfsqv0qywrqm6ygw45f-bcachefs-module-7.0.0-28-generic.drv
building '/nix/store/m7vj5a4243y6shfsqv0qywrqm6ygw45f-bcachefs-module-7.0.0-28-generic.drv'...