this derivation will be built:
  /nix/store/w2w7rr4sqaj3np75ddz6kjvs3002drqk-bcachefs-module-7.0.0-29-generic.drv
building '/nix/store/w2w7rr4sqaj3np75ddz6kjvs3002drqk-bcachefs-module-7.0.0-29-generic.drv'...