this derivation will be built:
  /nix/store/sj393rzll8v4cf2ndqraind8f0xqvf14-bcachefs-module-7.0.0-31-generic.drv
building '/nix/store/sj393rzll8v4cf2ndqraind8f0xqvf14-bcachefs-module-7.0.0-31-generic.drv'...