these 5 derivations will be built:
  /nix/store/svpg8lyp7siyl7drv64ajfipx3aabxlb-clan-runtime.drv
  /nix/store/9kqnf81236pss98vavw8r7n2k2nr4r8s-clan-cli-source.drv
  /nix/store/c7r5mr8qzjzna3wagl6grn17n807sxi3-clan-cli.drv
  /nix/store/jz9894cgsky9k7ypnvsjqdal2rr79yrk-closure-info.drv
  /nix/store/7jdsg1v1bccsi6s4vkgkc1d4wkpx0wc1-check-vars.drv