this derivation will be built:
  /nix/store/blha1cfpigkx7qrah7dyz2g816sh9f7b-bcachefs-module-7.0.0-28-generic.drv
building '/nix/store/blha1cfpigkx7qrah7dyz2g816sh9f7b-bcachefs-module-7.0.0-28-generic.drv'...