this derivation will be built:
  /nix/store/8h2by9milal15836qh4cgykq5l98nqh9-bcachefs-module-7.0.0-30-generic.drv
building '/nix/store/8h2by9milal15836qh4cgykq5l98nqh9-bcachefs-module-7.0.0-30-generic.drv'...