these 4 derivations will be built:
  /nix/store/0s08yq3655mh0b69790sbxnh4cx1gp1n-clan-cli-source.drv
  /nix/store/c4aj19in0pgwmn1ykfgx9n7fcsm01by0-clan-cli.drv
  /nix/store/y4gkibi2cccp37k63xxkl75w8jkx2klr-closure-info.drv
  /nix/store/zjnk7gvhzpcs722a0j3nn0dixcimyx5h-check-vars.drv
error: path '/nix/store/w47bqv03fgxbmrlilbf8akjp2mjn71xy-check-vars' is not valid
error: Cannot build '/nix/store/zjnk7gvhzpcs722a0j3nn0dixcimyx5h-check-vars.drv'.
       Reason: builder failed with exit code 1.
       Output paths:
         /nix/store/w47bqv03fgxbmrlilbf8akjp2mjn71xy-check-vars