this derivation will be built:
  /nix/store/n0x8flrldwv8gw8mjyn74034w401vq12-bcachefs-module-7.0.0-39-generic.drv
building '/nix/store/n0x8flrldwv8gw8mjyn74034w401vq12-bcachefs-module-7.0.0-39-generic.drv'...