these 5 derivations will be built:
  /nix/store/0w3ykk84fhmf53mg4f3rcs1kb0vblgfk-clan-runtime.drv
  /nix/store/sm9bxm7pwfmlfwsnvgkjxfaj01ciyf8m-closure-info.drv
  /nix/store/y02iggncvjdjb4bf3v3283z13zqlrmpb-clan-cli-source.drv
  /nix/store/y6v63015b66310l853vrhaddjw6qwx9c-clan-cli.drv
  /nix/store/3y8mzwr09dz9dcdpffn20yvsfghr5a0j-check-vars.drv
error: path '/nix/store/p3sabf834ydgpzz8b64hiikkzrip5imd-check-vars' is not valid
error: Cannot build '/nix/store/3y8mzwr09dz9dcdpffn20yvsfghr5a0j-check-vars.drv'.
       Reason: builder failed with exit code 1.
       Output paths:
         /nix/store/p3sabf834ydgpzz8b64hiikkzrip5imd-check-vars