this derivation will be built:
  /nix/store/mn3nl8pkvarrzv60chmp4lczda2il4qv-bcachefs-module-7.0.0-39-generic.drv
building '/nix/store/mn3nl8pkvarrzv60chmp4lczda2il4qv-bcachefs-module-7.0.0-39-generic.drv'...