these 2 derivations will be built:
  /nix/store/2cz4z3h7dpi94krkz5nwmliysqcpynqr-closure-info.drv
  /nix/store/hw1hxsh7fgaig03l7dpzyqbmlj6ihhy8-check-vars.drv
error: path '/nix/store/kjwsy9j7m81z6sfwas1fpcg4zmys5j1x-check-vars' is not valid
error: Cannot build '/nix/store/hw1hxsh7fgaig03l7dpzyqbmlj6ihhy8-check-vars.drv'.
       Reason: builder failed with exit code 1.
       Output paths:
         /nix/store/kjwsy9j7m81z6sfwas1fpcg4zmys5j1x-check-vars