this derivation will be built:
  /nix/store/sl1gvsblqn0f7gshdn9r3y37kvyk5wjv-bcachefs-module-7.0.0-30-generic.drv
building '/nix/store/sl1gvsblqn0f7gshdn9r3y37kvyk5wjv-bcachefs-module-7.0.0-30-generic.drv'...