this derivation will be built:
  /nix/store/8v9m7yr6mx6428l0qds4qgfpb23dpgy5-bcachefs-module-7.0.0-29-generic.drv
building '/nix/store/8v9m7yr6mx6428l0qds4qgfpb23dpgy5-bcachefs-module-7.0.0-29-generic.drv'...