this derivation will be built:
  /nix/store/ks472s2agclgzgq5f4fs8y3h0jrd3qkv-bcachefs-module-7.0.0-38-generic.drv
building '/nix/store/ks472s2agclgzgq5f4fs8y3h0jrd3qkv-bcachefs-module-7.0.0-38-generic.drv'...