these 9 derivations will be built:
  /nix/store/4dgmplv2vqjqp4yscfz7frzik3kcyd5f-crate-rstest-0.28.0.tar.gz.drv
  /nix/store/cp0a2zgzvkvpm2synqanzcg3x1b1b0k3-crate-cc-1.10.0.tar.gz.drv
  /nix/store/y02aa66d4h2dh82v26d0v272fl7k71sb-crate-rstest_macros-0.28.0.tar.gz.drv
  /nix/store/d88yp3cpqvn1rdnqy4kl0h7svizqyrky-rstest_macros-0.28.0.drv
  /nix/store/mvk38l714kpdqp0mknr644471b5b5lld-cc-1.10.0.drv
  /nix/store/vaa71q9pgl3r8x2ymyb87779b5ssk021-find-msvc-tools-0.1.15.drv
  /nix/store/yxm8fa8lj80zf84a3n2hfjazmvc7g95z-rstest-0.28.0.drv
  /nix/store/nd1yd7jphj1whi2hypn9sj1r8cvpga0f-cargo-vendor-dir.drv
  /nix/store/wrvazpf13c0ybaax7db8x4hhqah5jx36-nix-ld.drv