this derivation will be built:
  /nix/store/mkx64pmyi38hn2bzcas2wfa0gd1qfywf-bcachefs-module-7.0.0-39-generic.drv
building '/nix/store/mkx64pmyi38hn2bzcas2wfa0gd1qfywf-bcachefs-module-7.0.0-39-generic.drv'...