these 3 derivations will be built:
  /nix/store/mr01rw2c97jxnkm1ycfh2kvl7c43ck2b-clan-cli-source.drv
  /nix/store/dgnhidp1fb50h190kxacwdikpdqj632m-clan-cli.drv
  /nix/store/4f2qk383q20ycv231klnrd0pwb3bgry0-nix-shell.drv