this derivation will be built:
  /nix/store/frw6zf6ai3v4jcz01h986m1h75bd7qn2-bcachefs-module-7.0.0-39-generic.drv
building '/nix/store/frw6zf6ai3v4jcz01h986m1h75bd7qn2-bcachefs-module-7.0.0-39-generic.drv'...