message: Set `RUSTC_BOOTSTRAP = 1`
diff: @@ -34,6 +34,11 @@ variables:
  ALL_CRATES: "${PURELY_STD_CRATES} ${ALSO_WASM_CRATES}"
  DELEGATOR_SUBCONTRACTS: "accumulator adder subber"
  UPGRADEABLE_CONTRACTS: "forward-calls delegate-calls"
  + # We need to enable `RUSTC_BOOTSTRAP` so that the nighly ink!
  + # features still work on stable. This is done automatically by
  + # `cargo-contract`, but in our CI here we also use e.g.
  + # `cargo check` directly.
  + RUSTC_BOOTSTRAP: "1"
  workflow:
  rules:
  