this derivation will be built:
  /nix/store/v2ghp99vksdl36rzqhl7vqnhkp2rwy80-bcachefs-module-7.0.0-38-generic.drv
building '/nix/store/v2ghp99vksdl36rzqhl7vqnhkp2rwy80-bcachefs-module-7.0.0-38-generic.drv'...