Experiment with circleci job description by disabling default features

Author: ueco-jb

.circleci/config.yml

@@ -942,9 +942,9 @@ jobs:
               (cd $C && cargo build --release --target wasm32-unknown-unknown --locked)
             done
       - run:
-          name: Install check_contract
+          name: Install check_contract (no iterators)
           # Uses --debug for compilation speed
-          command: cargo install --debug --version 0.16.0 --features iterator --example check_contract -- cosmwasm-vm
+          command: cargo install --debug --version 0.16.0 --example check_contract -- cosmwasm-vm
       - save_cache:
           paths:
             - /usr/local/cargo/registry