these 2 derivations will be built:
  /nix/store/kk8z1ms602inry6c7qprzpgdr93lijcc-closure-info.drv
  /nix/store/5lfy525c06s4hhlhrcx2r7vp6zcmicmw-check-vars.drv
error: path '/nix/store/bp68jdz9fx266r8b59k77mc2b945yj6d-check-vars' is not valid
error: Cannot build '/nix/store/5lfy525c06s4hhlhrcx2r7vp6zcmicmw-check-vars.drv'.
       Reason: builder failed with exit code 1.
       Output paths:
         /nix/store/bp68jdz9fx266r8b59k77mc2b945yj6d-check-vars