these 2 derivations will be built:
  /nix/store/46qn93jmmpg158gg51awnxxs2h5grx60-closure-info.drv
  /nix/store/jdpvv4hjm22yf112qajwc0xrkxin0gz5-check-vars.drv
error: path '/nix/store/y40lxbh17p5xi7bvllmq3sbaj52nw5fp-check-vars' is not valid
error: Cannot build '/nix/store/jdpvv4hjm22yf112qajwc0xrkxin0gz5-check-vars.drv'.
       Reason: builder failed with exit code 1.
       Output paths:
         /nix/store/y40lxbh17p5xi7bvllmq3sbaj52nw5fp-check-vars