this derivation will be built:
  /nix/store/jafryli21xn70wyj2y5fq3gpgchq9hhq-bcachefs-module-7.0.0-39-generic.drv
building '/nix/store/jafryli21xn70wyj2y5fq3gpgchq9hhq-bcachefs-module-7.0.0-39-generic.drv'...