these 4 derivations will be built:
  /nix/store/ch3y4bs7z4q1rwim51afxyg55qgr09fz-closure-info.drv
  /nix/store/gxh5f5s1by6s679pzk1y3dqqf7y8xjp2-clan-cli-source.drv
  /nix/store/ski5hi733wxx3ajkp8p7mqbra6k6ss5m-clan-cli.drv
  /nix/store/l6i0ck6fppxnia0anb9410xc8if74yix-check-vars.drv