these 5 derivations will be built:
  /nix/store/04q56gcr3f5awmv8zxmnqaf8frxx6b0k-closure-info.drv
  /nix/store/d424jrrph7cfj9is8w9fmbhiqh8nz8zg-clan-runtime.drv
  /nix/store/cbpy6cdq6gyqn1341hv6kqzf4wfhgchz-clan-cli-source.drv
  /nix/store/pp8az7c4qiy473r4bxa1246snmwfkxs4-clan-cli.drv
  /nix/store/8wqaqy80ipkwidn68yfdw9zkm3351pgd-check-vars.drv
error: path '/nix/store/3jy6sh3ndfys1ri3sffahiwvixbxwjqc-check-vars' is not valid
error: Cannot build '/nix/store/8wqaqy80ipkwidn68yfdw9zkm3351pgd-check-vars.drv'.
       Reason: builder failed with exit code 1.
       Output paths:
         /nix/store/3jy6sh3ndfys1ri3sffahiwvixbxwjqc-check-vars