this derivation will be built:
  /nix/store/1h2kgp6imrymix54g7rg8246mch4cja7-bcachefs-module-7.0.0-39-generic.drv
building '/nix/store/1h2kgp6imrymix54g7rg8246mch4cja7-bcachefs-module-7.0.0-39-generic.drv'...