this derivation will be built:
  /nix/store/kpfks3xvpvmm33by1f6c147hrkxrqpnp-bcachefs-module-7.0.0-39-generic.drv
building '/nix/store/kpfks3xvpvmm33by1f6c147hrkxrqpnp-bcachefs-module-7.0.0-39-generic.drv'...