this derivation will be built:
  /nix/store/kf7qjc9wlqil40b4acs1132zkrxifm8i-bcachefs-module-7.0.0-39-generic.drv
building '/nix/store/kf7qjc9wlqil40b4acs1132zkrxifm8i-bcachefs-module-7.0.0-39-generic.drv'...