this derivation will be built:
  /nix/store/ssx88k4yr96spn4vv3z2pr1mfxrr33m0-bcachefs-module-7.0.0-39-generic.drv
building '/nix/store/ssx88k4yr96spn4vv3z2pr1mfxrr33m0-bcachefs-module-7.0.0-39-generic.drv'...