this derivation will be built:
  /nix/store/n1rpjry4bprmam4m4krnnw269vyvclnz-bcachefs-module-7.0.0-31-generic.drv
building '/nix/store/n1rpjry4bprmam4m4krnnw269vyvclnz-bcachefs-module-7.0.0-31-generic.drv'...