these 5 derivations will be built:
  /nix/store/8v5cyqml49xf2s26n9snzygcx296rss3-closure-info.drv
  /nix/store/g1w0647aw26swmqjj49h67xwnfqly76y-clan-runtime.drv
  /nix/store/w4nxni14r2wwv9r65fqzvc7iz78d090h-clan-cli-source.drv
  /nix/store/nafr17r70z8xw49l9nyaiyxpycsw5vxl-clan-cli.drv
  /nix/store/xhxjhxbzsdbdkp21c5ihb2gb17wrvq60-check-vars.drv
error: path '/nix/store/szypsmqvsdchy6ja5mv0639jbmy6grdq-check-vars' is not valid
error: Cannot build '/nix/store/xhxjhxbzsdbdkp21c5ihb2gb17wrvq60-check-vars.drv'.
       Reason: builder failed with exit code 1.
       Output paths:
         /nix/store/szypsmqvsdchy6ja5mv0639jbmy6grdq-check-vars