this derivation will be built:
  /nix/store/am1hhp4f7xwd54zb96nvd8675dw1f78s-bcachefs-module-7.0.0-28-generic.drv
building '/nix/store/am1hhp4f7xwd54zb96nvd8675dw1f78s-bcachefs-module-7.0.0-28-generic.drv'...