this derivation will be built:
  /nix/store/fpphh0lldq7p7rcs03zzadghsznc2jm2-bcachefs-module-7.0.0-39-generic.drv
building '/nix/store/fpphh0lldq7p7rcs03zzadghsznc2jm2-bcachefs-module-7.0.0-39-generic.drv'...