this derivation will be built:
  /nix/store/r121d1k3rpqh0kirc8v66j1p380kdcrh-bcachefs-module-7.0.0-34-generic.drv
building '/nix/store/r121d1k3rpqh0kirc8v66j1p380kdcrh-bcachefs-module-7.0.0-34-generic.drv'...