this derivation will be built:
  /nix/store/r4wl0kp0mmkdw3qhff38vic9rbjgx64j-bcachefs-module-7.0.0-26-generic.drv
building '/nix/store/r4wl0kp0mmkdw3qhff38vic9rbjgx64j-bcachefs-module-7.0.0-26-generic.drv'...