these 2 derivations will be built:
  /nix/store/7jpk16rgq8z1jcjnhlln14gvlh622w6b-closure-info.drv
  /nix/store/8378bnhgv79azcyand1qy9r2iasvc3yf-check-vars.drv
error: path '/nix/store/gjafcd042gsf40k81yzlssnqyqrnchs5-check-vars' is not valid
error: Cannot build '/nix/store/8378bnhgv79azcyand1qy9r2iasvc3yf-check-vars.drv'.
       Reason: builder failed with exit code 1.
       Output paths:
         /nix/store/gjafcd042gsf40k81yzlssnqyqrnchs5-check-vars