this derivation will be built:
  /nix/store/3xw6sl1s5ahpv2r3336kg7zsip8l21qc-bcachefs-module-7.0.0-34-generic.drv
building '/nix/store/3xw6sl1s5ahpv2r3336kg7zsip8l21qc-bcachefs-module-7.0.0-34-generic.drv'...