this derivation will be built:
  /nix/store/r2v37ipmdfg50gbsch7lpvai5kpgb35q-bcachefs-module-7.0.0-29-generic.drv
building '/nix/store/r2v37ipmdfg50gbsch7lpvai5kpgb35q-bcachefs-module-7.0.0-29-generic.drv'...