this derivation will be built:
  /nix/store/gcq2c9911ja84x7mz8npvlgls4wc7iyz-bcachefs-module-7.0.0-31-generic.drv
building '/nix/store/gcq2c9911ja84x7mz8npvlgls4wc7iyz-bcachefs-module-7.0.0-31-generic.drv'...