this derivation will be built:
  /nix/store/l4s6wqmj9mhmyf4fn9s0nrlxcy48p0r4-bcachefs-module-7.0.0-31-generic.drv
building '/nix/store/l4s6wqmj9mhmyf4fn9s0nrlxcy48p0r4-bcachefs-module-7.0.0-31-generic.drv'...