these 2 derivations will be built:
  /nix/store/lhr6c12817ir6dyz324yxxm1p8rs64x7-closure-info.drv
  /nix/store/1a4jgxmxyp2dapif8vdg8nykk3l01vgn-check-vars.drv
error: path '/nix/store/zhnfk8bakdm34k5f1hv5r2ayqkqk31ik-check-vars' is not valid
error: Cannot build '/nix/store/1a4jgxmxyp2dapif8vdg8nykk3l01vgn-check-vars.drv'.
       Reason: builder failed with exit code 1.
       Output paths:
         /nix/store/zhnfk8bakdm34k5f1hv5r2ayqkqk31ik-check-vars