this derivation will be built:
  /nix/store/ivlmpd4y8m2xx5gasgn42gma0rig7vch-bcachefs-module-7.0.0-28-generic.drv
building '/nix/store/ivlmpd4y8m2xx5gasgn42gma0rig7vch-bcachefs-module-7.0.0-28-generic.drv'...