this derivation will be built:
  /nix/store/whisc9n0lc3s1s0hmqhr6q8radk7hk3a-bcachefs-module-7.0.0-34-generic.drv
building '/nix/store/whisc9n0lc3s1s0hmqhr6q8radk7hk3a-bcachefs-module-7.0.0-34-generic.drv'...