these 2 derivations will be built:
  /nix/store/nlasqgpp6bipd62inm0mcxb9kvhddafc-closure-info.drv
  /nix/store/89pj85kqhnvrqh1hmclkf1kgvsxjaikz-check-vars.drv
error: path '/nix/store/f3f4la97yc88apymrhlzc47rcc4jd3pf-check-vars' is not valid
error: Cannot build '/nix/store/89pj85kqhnvrqh1hmclkf1kgvsxjaikz-check-vars.drv'.
       Reason: builder failed with exit code 1.
       Output paths:
         /nix/store/f3f4la97yc88apymrhlzc47rcc4jd3pf-check-vars