this derivation will be built:
  /nix/store/139ld7pwsyjpbvcixdarxi3xv9cbsh28-bcachefs-module-7.0.0-39-generic.drv
building '/nix/store/139ld7pwsyjpbvcixdarxi3xv9cbsh28-bcachefs-module-7.0.0-39-generic.drv'...