this derivation will be built:
  /nix/store/r6v1qazdq286jxrqc27rpmckfh1a13y7-bcachefs-module-7.0.0-38-generic.drv
building '/nix/store/r6v1qazdq286jxrqc27rpmckfh1a13y7-bcachefs-module-7.0.0-38-generic.drv'...