this derivation will be built:
  /nix/store/cjk5rxkj8y6khi2p7rw62d25zgya1qpw-bcachefs-module-7.0.0-39-generic.drv
building '/nix/store/cjk5rxkj8y6khi2p7rw62d25zgya1qpw-bcachefs-module-7.0.0-39-generic.drv'...