these 2 derivations will be built:
  /nix/store/vv07f3c8hr7q7326ryqiskdrzgrcm5ch-closure-info.drv
  /nix/store/09b42gk2l9x0sqlnfsv2lky7rhv331qs-check-vars.drv
error: path '/nix/store/qjiaxlii7gbq44mmmmn2m5ps9hnrgn2h-check-vars' is not valid
error: Cannot build '/nix/store/09b42gk2l9x0sqlnfsv2lky7rhv331qs-check-vars.drv'.
       Reason: builder failed with exit code 1.
       Output paths:
         /nix/store/qjiaxlii7gbq44mmmmn2m5ps9hnrgn2h-check-vars