these 5 derivations will be built:
  /nix/store/0514qwc6j7xipxi783xszhsia289vyvm-clan-runtime.drv
  /nix/store/j5yab0wfjws6zm1nbrbd0z8p6y32q9zx-clan-cli-source.drv
  /nix/store/2diqy19fi6z3aivg5mjvvfkd6ncam57d-clan-cli.drv
  /nix/store/4gz6k0zwlcx38i2qsila2mxmak18fym6-closure-info.drv
  /nix/store/v9g0spawhdyy4985fvnq81r9gn1a1zv3-check-vars.drv