these 2 derivations will be built:
  /nix/store/w5sm49kri232skh1jd4v7bfphc3xs6k6-closure-info.drv
  /nix/store/dx334b2xix7adgl9lb30xicxz2ib90m2-check-vars.drv
error: path '/nix/store/xxn3iasfi172pf4f5gqkdh7zadv6yx11-check-vars' is not valid
error: Cannot build '/nix/store/dx334b2xix7adgl9lb30xicxz2ib90m2-check-vars.drv'.
       Reason: builder failed with exit code 1.
       Output paths:
         /nix/store/xxn3iasfi172pf4f5gqkdh7zadv6yx11-check-vars