//! Compile-fail tests that pin the "NullEop is rejected by precise APIs"
//! guarantee. Each `.rs` file in `tests/trybuild/` must fail to compile for
//! the documented reason; the corresponding `.stderr` file captures the
//! expected diagnostic.
//!
//! Run with: `cargo test -p arika --test trybuild`.
//!
//! Updating stderr files: set `TRYBUILD=overwrite` and rerun the test.