these 2 derivations will be built:
  /nix/store/gkp4gkhj7m32pn4pbfb838sl3yszgqc4-qwen-code-0.21.2.drv
  /nix/store/nxfir7dr58w2y5q18dz63vgg2yf81wyr-check-qwen-code.drv