this derivation will be built:
  /nix/store/5mcvmfv241maqia0cc5dwzbmkcgm92m7-bcachefs-module-7.0.0-39-generic.drv
building '/nix/store/5mcvmfv241maqia0cc5dwzbmkcgm92m7-bcachefs-module-7.0.0-39-generic.drv'...