these 4 derivations will be built:
  /nix/store/yxy0dyh3fw1vfjjcxdpir2mwfxrfcbyw-Cargo.toml.drv
  /nix/store/qwrh9sszr1iqj4w2gch4k8k4mxcvnzc3-source.drv
  /nix/store/8lcaz0yx1x9a1cx3y7z2ap4jjvsa7lqw-iets-deps-0.2.0.drv
  /nix/store/y4zal543q0a2phvlsrzai1f0xfi1c7r1-iets-doctest-0.2.0.drv
warning: ignoring the client-specified setting 'store', because it is a restricted setting and you are not a trusted user