this derivation will be built:
  /nix/store/b5d0lvj8chh70ig3kg1v7y3d4llkibv7-bcachefs-module-7.0.0-31-generic.drv
building '/nix/store/b5d0lvj8chh70ig3kg1v7y3d4llkibv7-bcachefs-module-7.0.0-31-generic.drv'...