these 2 derivations will be built:
  /nix/store/7xfxp4sq269a2aapav91h1w1divzs1c2-closure-info.drv
  /nix/store/lzpy4lv28nql9vsyshfnlzygzbhrh90w-check-vars.drv
error: path '/nix/store/rzrgy89yayjgxj7ji9ppp5hc054av27h-check-vars' is not valid
error: Cannot build '/nix/store/lzpy4lv28nql9vsyshfnlzygzbhrh90w-check-vars.drv'.
       Reason: builder failed with exit code 1.
       Output paths:
         /nix/store/rzrgy89yayjgxj7ji9ppp5hc054av27h-check-vars