this derivation will be built:
  /nix/store/8s9b7969gxnp3278s63lpa7lf8dv39yn-bcachefs-module-7.0.0-31-generic.drv
building '/nix/store/8s9b7969gxnp3278s63lpa7lf8dv39yn-bcachefs-module-7.0.0-31-generic.drv'...