these 4 derivations will be built:
  /nix/store/3lhawqff2vwgqclkfazq3pxka13w19gh-closure-info.drv
  /nix/store/l2h9c1g8hby28scvmpbqpjsqnnhcqpkv-clan-cli-source.drv
  /nix/store/x2v15222vdz3yvnfbbpk0gj63rbxwfnm-clan-cli.drv
  /nix/store/plihszp8lgbxhfvwwry0hj6nswjhz7fd-check-vars.drv
error: path '/nix/store/x4822l8l0q11vin9bhv3dnvczxv3vm8y-check-vars' is not valid
error: Cannot build '/nix/store/plihszp8lgbxhfvwwry0hj6nswjhz7fd-check-vars.drv'.
       Reason: builder failed with exit code 1.
       Output paths:
         /nix/store/x4822l8l0q11vin9bhv3dnvczxv3vm8y-check-vars