these 4 derivations will be built:
  /nix/store/23rk1l733242crnwljnpj0h694lmfsy1-closure-info.drv
  /nix/store/kx8lx2ldyh0znc7ix9njzx2hayqz3ps2-clan-cli-source.drv
  /nix/store/qljs67rac6054vrpgh5rb904pz2xkyf7-clan-cli.drv
  /nix/store/lmiz6pk1c8xm64jvjb8p2550nmda0z5m-check-vars.drv
error: path '/nix/store/5b2nm9sbbik8m5224q64wrvrv1y835hz-check-vars' is not valid
error: Cannot build '/nix/store/lmiz6pk1c8xm64jvjb8p2550nmda0z5m-check-vars.drv'.
       Reason: builder failed with exit code 1.
       Output paths:
         /nix/store/5b2nm9sbbik8m5224q64wrvrv1y835hz-check-vars