this derivation will be built:
  /nix/store/c36g2jhmpgmw9l52c7psnpy6db9bhkkn-bcachefs-module-7.0.0-38-generic.drv
building '/nix/store/c36g2jhmpgmw9l52c7psnpy6db9bhkkn-bcachefs-module-7.0.0-38-generic.drv'...