these 2 derivations will be built:
  /nix/store/4dhs3xfd4ssbw0npzwscxlq0mg2d5qvf-closure-info.drv
  /nix/store/2lmvnqsnymiqrll9g9r5zv4chl6gbf7g-check-vars.drv
error: path '/nix/store/wiv06d2idwkbpqx9ks9f619arbbpcb7y-check-vars' is not valid
error: Cannot build '/nix/store/2lmvnqsnymiqrll9g9r5zv4chl6gbf7g-check-vars.drv'.
       Reason: builder failed with exit code 1.
       Output paths:
         /nix/store/wiv06d2idwkbpqx9ks9f619arbbpcb7y-check-vars