this derivation will be built:
  /nix/store/jhhb2dzrv6f5kziadjflklij6gzh0c52-bcachefs-module-7.0.0-29-generic.drv
building '/nix/store/jhhb2dzrv6f5kziadjflklij6gzh0c52-bcachefs-module-7.0.0-29-generic.drv'...