this derivation will be built:
  /nix/store/b207fwzmgzkfz1f430zl870iyl75vp3q-bcachefs-module-7.0.0-34-generic-64k.drv
building '/nix/store/b207fwzmgzkfz1f430zl870iyl75vp3q-bcachefs-module-7.0.0-34-generic-64k.drv'...