these 5 derivations will be built:
  /nix/store/0w3ykk84fhmf53mg4f3rcs1kb0vblgfk-clan-runtime.drv
  /nix/store/23gg4j7x7lk8fgvbjvjg3dzy8nqfrp4b-clan-cli-source.drv
  /nix/store/vwdyha2wi7cg4vb2kamdc549fvwpz5g3-clan-cli.drv
  /nix/store/xhlc754i7afvirkqinxbrgrsvm0hzp63-closure-info.drv
  /nix/store/0x0amj8c7sl9706sf8k6hrin8ijp8l8g-check-vars.drv
error: path '/nix/store/c2749w9hifnnidyjxsbgh49lsp8p3gp8-check-vars' is not valid
error: Cannot build '/nix/store/0x0amj8c7sl9706sf8k6hrin8ijp8l8g-check-vars.drv'.
       Reason: builder failed with exit code 1.
       Output paths:
         /nix/store/c2749w9hifnnidyjxsbgh49lsp8p3gp8-check-vars