these 2 derivations will be built:
  /nix/store/l836lr7hlwz6z9bpv5v4knzfkqxz5h6x-cargo-vendor-dir.drv
  /nix/store/wz65win04gx4fpphanvnmjarxz0lm5ps-peephole-clippy-0.1.0.drv