these 2 derivations will be built:
  /nix/store/v0h5nc198jlx23xdnvrn6yhxjc658ng2-closure-info.drv
  /nix/store/yp7x9rwd0nrfc84dminabm5zkz5bajg0-check-vars.drv
error: path '/nix/store/k84x00wii15q0qlv3zzsrh285a7dsxaa-check-vars' is not valid
error: Cannot build '/nix/store/yp7x9rwd0nrfc84dminabm5zkz5bajg0-check-vars.drv'.
       Reason: builder failed with exit code 1.
       Output paths:
         /nix/store/k84x00wii15q0qlv3zzsrh285a7dsxaa-check-vars