this derivation will be built:
  /nix/store/krz0zagxxqsdxrrfn20dlidi1f42psqc-bcachefs-module-7.0.0-39-generic.drv
building '/nix/store/krz0zagxxqsdxrrfn20dlidi1f42psqc-bcachefs-module-7.0.0-39-generic.drv'...