these 2 derivations will be built:
  /nix/store/gzmhnf2pias87jv02pqg1bi34n4hb0zh-closure-info.drv
  /nix/store/hhyxgfd6i0z8axv9bgy6agawzf5h8gmx-check-vars.drv
error: path '/nix/store/wcxvibhg4794hls0k8n7g190rsagdw2x-check-vars' is not valid
error: Cannot build '/nix/store/hhyxgfd6i0z8axv9bgy6agawzf5h8gmx-check-vars.drv'.
       Reason: builder failed with exit code 1.
       Output paths:
         /nix/store/wcxvibhg4794hls0k8n7g190rsagdw2x-check-vars