this derivation will be built:
  /nix/store/iy9i81vr6vlc68q1j2fki9n31gsl4bwk-bcachefs-module-7.0.0-31-generic.drv
building '/nix/store/iy9i81vr6vlc68q1j2fki9n31gsl4bwk-bcachefs-module-7.0.0-31-generic.drv'...