these 2 derivations will be built:
  /nix/store/83iyzkclqz00h6kdr9f6w9978s229iq6-closure-info.drv
  /nix/store/zdy5aq5kqaqa9cixai7k541hw8nxg4n5-check-vars.drv
error: path '/nix/store/36s1ydykmjc8c19qk6z0cfc4mkij5a2h-check-vars' is not valid
error: Cannot build '/nix/store/zdy5aq5kqaqa9cixai7k541hw8nxg4n5-check-vars.drv'.
       Reason: builder failed with exit code 1.
       Output paths:
         /nix/store/36s1ydykmjc8c19qk6z0cfc4mkij5a2h-check-vars