this derivation will be built:
  /nix/store/mcgdg1h68r60g5djh0n5c6czcjj341rl-bcachefs-module-7.0.0-27-generic.drv
building '/nix/store/mcgdg1h68r60g5djh0n5c6czcjj341rl-bcachefs-module-7.0.0-27-generic.drv'...