this derivation will be built:
  /nix/store/n7hs5nx57zg3721qqq8gk8p1a9npc0dv-bcachefs-module-7.0.0-30-generic.drv
building '/nix/store/n7hs5nx57zg3721qqq8gk8p1a9npc0dv-bcachefs-module-7.0.0-30-generic.drv'...