this derivation will be built:
  /nix/store/fnhi74knk1pr6b66lbp0y8d9b37n7dlb-bcachefs-module-7.0.0-39-generic.drv
building '/nix/store/fnhi74knk1pr6b66lbp0y8d9b37n7dlb-bcachefs-module-7.0.0-39-generic.drv'...