these 2 derivations will be built:
  /nix/store/4ymy07m18w238093jvpsalq3a6z9vw3d-muse-code-1.4.1-R4503.1.drv
  /nix/store/vvd0xik2f7jxj59ngxy7sywph4lgv4km-check-muse-code.drv