this derivation will be built:
  /nix/store/vl26z4qccrixdm6dfq95hqx3848pd1pq-bcachefs-module-7.0.0-39-generic.drv
building '/nix/store/vl26z4qccrixdm6dfq95hqx3848pd1pq-bcachefs-module-7.0.0-39-generic.drv'...