these 2 derivations will be built:
  /nix/store/a8g6ghbnd21lwfagnb4s7nf99ng9gk2y-tribuchet-deps-0.1.0.drv
  /nix/store/8xhfs76wainn5jmjpj2yv3yhkza490i5-tribuchet-0.1.0.drv