The CI in the OP-TEE repo runs an expect script to test Rust examples. Originally, this script was located at teaclave-trustzone-sdk/ci/qemu-check.exp but has been duplicated to OP-TEE/build/rust.exp in OP-TEE/build#717 and maintained in OP-TEE repo.
However, rust.exp needs to be updated to include checks for additional no_std examples: tcp_client and udp_client.
Before adding these checks, we should first enable IPv6 support in QEMU, as discussed
in #164 (comment), to properly test the tcp_client example.
Leaving a TODO here as a record.