these 5 derivations will be built:
  /nix/store/2dp9zg3nfa27rn2drrbswri2vrv5jihx-closure-info.drv
  /nix/store/vsny70ivbqf37pqa2arq5hf8681q6bm9-clan-runtime.drv
  /nix/store/75926ac0wlhjwdb5c18j975dd3yq3mh4-clan-cli-source.drv
  /nix/store/rpqrgs84b7y5a48y31isgmh4j4ah6cfc-clan-cli.drv
  /nix/store/r5bwpaaw760cwws1nq1lziwaxjyii9y2-check-vars.drv
error: path '/nix/store/cwgaaai6m507a5i3chj51m1wvlzhn231-check-vars' is not valid
error: Cannot build '/nix/store/r5bwpaaw760cwws1nq1lziwaxjyii9y2-check-vars.drv'.
       Reason: builder failed with exit code 1.
       Output paths:
         /nix/store/cwgaaai6m507a5i3chj51m1wvlzhn231-check-vars