these 2 derivations will be built:
  /nix/store/bdksf3mh7haghjx90qm99kszy4g4lgm8-closure-info.drv
  /nix/store/hx5xm1awnhkgahmk46v66iif0wvdir07-check-vars.drv
error: path '/nix/store/nlfciw0xwi1q88h1m48p9bzd07h6yspb-check-vars' is not valid
error: Cannot build '/nix/store/hx5xm1awnhkgahmk46v66iif0wvdir07-check-vars.drv'.
       Reason: builder failed with exit code 1.
       Output paths:
         /nix/store/nlfciw0xwi1q88h1m48p9bzd07h6yspb-check-vars