these 5 derivations will be built:
  /nix/store/3ha2xqkbxr12704d7f3s68jzy79a830j-clan-runtime.drv
  /nix/store/561na2wwz5fs1h0jl4q2j6l5d1kq3w2v-closure-info.drv
  /nix/store/yvzny6mjydmgy25rwknqpanv81264nrp-clan-cli-source.drv
  /nix/store/b9g7ivfpa9xmrgzqlnxd6v07k4j83280-clan-cli.drv
  /nix/store/lks9lizgkmvc4yz8iimrkahvg1i2z8hq-check-vars.drv
error: path '/nix/store/hs336wdhsrghklz4fy2hy12lxh1fnzjr-check-vars' is not valid
error: Cannot build '/nix/store/lks9lizgkmvc4yz8iimrkahvg1i2z8hq-check-vars.drv'.
       Reason: builder failed with exit code 1.
       Output paths:
         /nix/store/hs336wdhsrghklz4fy2hy12lxh1fnzjr-check-vars