these 2 derivations will be built:
  /nix/store/6a5yw3xyi00la77mpy14csjh22kzycjn-closure-info.drv
  /nix/store/p2327c5qlc7fr3hz5niq022nqmmpalks-check-vars.drv
error: path '/nix/store/8cqgy6dd2vfwjh29d1n0m5l7bpi7dk0q-check-vars' is not valid
error: Cannot build '/nix/store/p2327c5qlc7fr3hz5niq022nqmmpalks-check-vars.drv'.
       Reason: builder failed with exit code 1.
       Output paths:
         /nix/store/8cqgy6dd2vfwjh29d1n0m5l7bpi7dk0q-check-vars