this derivation will be built:
  /nix/store/c90ksspc6zik7d22ck5hbqj3v89bfgh2-bcachefs-module-7.0.0-30-generic.drv
building '/nix/store/c90ksspc6zik7d22ck5hbqj3v89bfgh2-bcachefs-module-7.0.0-30-generic.drv'...