these 2 derivations will be built:
  /nix/store/nmxyjk76ggrk2cbhbmkczls1azca3vcm-closure-info.drv
  /nix/store/zdwzrl32528pd65z3dk43nd27856s8z6-check-vars.drv
error: path '/nix/store/a3kwbl5ylq4bpy31prz44y3nr0n3fm02-check-vars' is not valid
error: Cannot build '/nix/store/zdwzrl32528pd65z3dk43nd27856s8z6-check-vars.drv'.
       Reason: builder failed with exit code 1.
       Output paths:
         /nix/store/a3kwbl5ylq4bpy31prz44y3nr0n3fm02-check-vars