this derivation will be built:
  /nix/store/mfvfl59792lrb4sj3j32ih8qfgv0ljjd-bcachefs-module-7.0.0-27-generic.drv
building '/nix/store/mfvfl59792lrb4sj3j32ih8qfgv0ljjd-bcachefs-module-7.0.0-27-generic.drv'...