this derivation will be built:
  /nix/store/35fi99a0nw4piqjzss24hm4a6hakjgj2-bcachefs-module-7.0.0-29-generic.drv
building '/nix/store/35fi99a0nw4piqjzss24hm4a6hakjgj2-bcachefs-module-7.0.0-29-generic.drv'...