these 2 derivations will be built:
  /nix/store/9d874z368bg8v72fdjp113dzjsxa8jni-closure-info.drv
  /nix/store/m1iiqm4x0i5wk3hky3123wx7bvs59abd-check-vars.drv
error: path '/nix/store/i3ci6hibzqqzpg1b2j1qfwqw3gyzxhm9-check-vars' is not valid
error: Cannot build '/nix/store/m1iiqm4x0i5wk3hky3123wx7bvs59abd-check-vars.drv'.
       Reason: builder failed with exit code 1.
       Output paths:
         /nix/store/i3ci6hibzqqzpg1b2j1qfwqw3gyzxhm9-check-vars