these 2 derivations will be built:
  /nix/store/ynmmnmwy9lq3flpkqgial8a59931pwvw-closure-info.drv
  /nix/store/08xfvc76kr9wf5mh113ks034irxphhss-check-vars.drv
error: path '/nix/store/d7699p7z6hfw4qk6zmz8wd78mx81s5i7-check-vars' is not valid
error: Cannot build '/nix/store/08xfvc76kr9wf5mh113ks034irxphhss-check-vars.drv'.
       Reason: builder failed with exit code 1.
       Output paths:
         /nix/store/d7699p7z6hfw4qk6zmz8wd78mx81s5i7-check-vars