these 5 derivations will be built:
  /nix/store/pwy9vzfxbyafhxbw08m9vrly80y3dj54-closure-info.drv
  /nix/store/hglfy1zl4vcrv33l529gik15sp54czfa-clan-runtime.drv
  /nix/store/w80cr50mnni3qpjfbvl9xa1gmwhpga7c-clan-cli-source.drv
  /nix/store/yjmwjdc874yna27gq61dhq4s2xx6gv0n-clan-cli.drv
  /nix/store/bdz9grr034y22chj2y2p6ni4arhqym4a-check-vars.drv
error: path '/nix/store/g3w6i16jlkh9zr7sy86v01jng2b5mr83-check-vars' is not valid
error: Cannot build '/nix/store/bdz9grr034y22chj2y2p6ni4arhqym4a-check-vars.drv'.
       Reason: builder failed with exit code 1.
       Output paths:
         /nix/store/g3w6i16jlkh9zr7sy86v01jng2b5mr83-check-vars