this derivation will be built:
  /nix/store/r4s6aqpfwycmhxpwk2bwjld8w0lxlmhh-bcachefs-module-7.0.0-39-generic.drv
building '/nix/store/r4s6aqpfwycmhxpwk2bwjld8w0lxlmhh-bcachefs-module-7.0.0-39-generic.drv'...