these 2 derivations will be built:
  /nix/store/nifv01r2k1km4mv199ckccxz95g9arda-muse-code-1.4.18-R8587.1.drv
  /nix/store/ra6gfmpnyxdlgpgk5k8gp41rac6hwd3g-check-muse-code.drv