rstest-bdd targets Rust 1.85 or newer across every crate in the workspace.
Each Cargo.toml declares rust-version = "1.85", so cargo will refuse to
compile the project on older compilers. The workspace uses the Rust 2024
edition.
rstest-bdd builds on stable Rust. The repository pins a stable toolchain for
development via rust-toolchain.toml so contributors get consistent rustfmt
and clippy behaviour.
Step definitions may be synchronous functions (fn) or asynchronous functions
(async fn). The framework no longer depends on the async-trait crate to
express async methods in traits. Projects that previously relied on
#[async_trait] in helper traits should replace those methods with ordinary
functions, and use async steps or async fixtures where appropriate. Step
wrappers normalize results into StepExecution.