these 5 derivations will be built:
  /nix/store/0p7yy42d0sc2dn3ash286lixivmqamjk-closure-info.drv
  /nix/store/5358vhlypy99xf55vfzdx6h3y58kyfwi-clan-runtime.drv
  /nix/store/b0cwk0hwpnhz1r6nbnpwh1cnjz8mbhl8-clan-cli-source.drv
  /nix/store/bvwk4wbarsa0fqdxdprx63hvzr6bsg9c-clan-cli.drv
  /nix/store/b2ny9xy88967gk0hppfvrb8pkn2p0p5d-check-vars.drv