these 4 derivations will be built:
  /nix/store/vmf8zyl8qq9svicv1haj1w3z5imx86y1-clan-cli-source.drv
  /nix/store/26kxliblwyib2ccimlyqbz7wca8vx5ph-clan-cli.drv
  /nix/store/b8ffcxx3v4w5m8k24kwcxdp1xklnk735-closure-info.drv
  /nix/store/1g4rqpkxb24ck6ry0cqgy1mliwjb7grv-check-vars.drv
error: path '/nix/store/3d2m2va0v6j5lfyjkprp3hnknspm18jk-check-vars' is not valid
error: Cannot build '/nix/store/1g4rqpkxb24ck6ry0cqgy1mliwjb7grv-check-vars.drv'.
       Reason: builder failed with exit code 1.
       Output paths:
         /nix/store/3d2m2va0v6j5lfyjkprp3hnknspm18jk-check-vars