this derivation will be built:
  /nix/store/d9y2j0jcfil8l239chv02qlq7g4jkskz-bcachefs-module-7.0.0-39-generic.drv
building '/nix/store/d9y2j0jcfil8l239chv02qlq7g4jkskz-bcachefs-module-7.0.0-39-generic.drv'...