these 2 derivations will be built:
  /nix/store/wbafab0vkdj3p4c44xprnfy49rq1pqd7-closure-info.drv
  /nix/store/3c4msvbdr41pvh6iznvzw2pg9z66cw28-check-vars.drv
error: path '/nix/store/w37bn27w2ddz0gy7s78ws7h38w8l6l97-check-vars' is not valid
error: Cannot build '/nix/store/3c4msvbdr41pvh6iznvzw2pg9z66cw28-check-vars.drv'.
       Reason: builder failed with exit code 1.
       Output paths:
         /nix/store/w37bn27w2ddz0gy7s78ws7h38w8l6l97-check-vars