Part of #27. Cargo workspace with canrs (stable core), canrs-ir (serde contract), canrs-extractor (nightly, rustc_private); rust-toolchain.toml pin; kitchen-sink fixture workspace; transparent rustc wrapper verified under cargo check; CI enforcing the stable-core constraint. Gate: both CI jobs green; wrapper transparent on the fixture.
Part of #27. Cargo workspace with canrs (stable core), canrs-ir (serde contract), canrs-extractor (nightly, rustc_private); rust-toolchain.toml pin; kitchen-sink fixture workspace; transparent rustc wrapper verified under cargo check; CI enforcing the stable-core constraint. Gate: both CI jobs green; wrapper transparent on the fixture.