these 2 derivations will be built:
  /nix/store/j2fbxzz20wz3khnmsjm21fpx46qxgjlm-closure-info.drv
  /nix/store/8czr9ziqmvn18znlgwnmbk493l0f4bc5-check-vars.drv
error: path '/nix/store/isjkqzqnscz3myajb0k0hr2q4jzfrrgm-check-vars' is not valid
error: Cannot build '/nix/store/8czr9ziqmvn18znlgwnmbk493l0f4bc5-check-vars.drv'.
       Reason: builder failed with exit code 1.
       Output paths:
         /nix/store/isjkqzqnscz3myajb0k0hr2q4jzfrrgm-check-vars