rust-rule-engine 1.20.3

A blazing-fast Rust rule engine with RETE algorithm, backward chaining inference, and GRL (Grule Rule Language) syntax. Features: forward/backward chaining, pattern matching, unification, O(1) rule indexing, TMS, expression evaluation, method calls, streaming with Redis state backend, watermarking, and custom functions. Production-ready for business rules, expert systems, real-time stream processing, and decision automation.
Documentation

Build #3498294 2026-06-06 13:57:01

# rustc version rustc 1.98.0-nightly (8954863c8 2026-06-05)

# docs.rs version docsrs 0.0.0 (39849b9c22c419f6b690c8d2213455bc7426a6b8 2026-06-03 )

# build log [INFO] running `Command { std: "docker" "exec" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "DOCS_RS=1" "-w" "/opt/rustwide/workdir" "--user" "1001:1001" "be5c839db25d90dda94f9b41be46199dbad5e34f9ccb446b464c399e91945430" "/opt/rustwide/cargo-home/bin/cargo" "+nightly" "rustdoc" "--lib" "-Zrustdoc-map" "--all-features" "--config" "build.rustdocflags=[\"--cfg\", \"docsrs\", \"--cfg\", \"docsrs\", \"-Z\", \"unstable-options\", \"--emit=invocation-specific\", \"--resource-suffix\", \"-20260605-1.98.0-nightly-8954863c8\", \"--static-root-path\", \"/-/rustdoc.static/\", \"--cap-lints\", \"warn\", \"--extern-html-root-takes-precedence\"]" "--offline" "-Zunstable-options" "--config=doc.extern-map.registries.crates-io=\"https://docs.rs/{pkg_name}/{version}/x86_64-unknown-linux-gnu\"" "-Zrustdoc-scrape-examples" "-j6" "--target" "x86_64-unknown-linux-gnu", kill_on_drop: false }` [INFO] [stderr] warning: Cargo.toml: file `/opt/rustwide/workdir/benches/memory_usage_benchmark.rs` found to be present in multiple build targets: [INFO] [stderr] * `bin` target `memory_usage_benchmark` [INFO] [stderr] * `bench` target `memory_usage_benchmark` [INFO] [stderr] warning: Cargo.toml: file `/opt/rustwide/workdir/benches/rete_1m_rules_benchmark.rs` found to be present in multiple build targets: [INFO] [stderr] * `bin` target `rete_1m_rules_benchmark` [INFO] [stderr] * `bench` target `rete_1m_rules_benchmark` [INFO] [stderr] warning: `rust-rule-engine` (manifest) generated 2 warnings [INFO] [stderr] warning: Rustdoc did not scrape the following examples because they require dev-dependencies: accumulate_grl_demo, action_handlers_grl_demo, conflict_resolution_demo, ecommerce_approval_demo, expression_demo, fraud_detection, grl_no_loop_demo, grl_query_demo, grule_demo, in_operator_demo, medical_diagnosis_demo, memory_usage_comparison, method_calls_demo, parallel_engine_demo, phase3_demo, proof_graph_cache_demo, quick_engine_comparison, rete_deffacts_demo, rete_demo, rete_grl_demo, rete_p3_incremental, rete_typed_facts_demo, rete_ul_drools_style, rule_templates_demo, session_window_demo, simple_query_demo, smart_home_modules, streaming_with_rules_demo, string_methods_demo, tms_demo [INFO] [stderr] If you want Rustdoc to scrape these examples, then add `doc-scrape-examples = true` [INFO] [stderr] to the [[example]] target configuration of at least one example. [INFO] [stderr] warning: target filter specified, but no targets matched; this is a no-op [INFO] [stderr] Documenting rust-rule-engine v1.20.3 (/opt/rustwide/workdir) [INFO] [stderr] warning: unresolved link to `start:end` [INFO] [stderr] --> src/rete/multifield.rs:85:35 [INFO] [stderr] | [INFO] [stderr] 85 | /// Get a slice of the array [start:end] [INFO] [stderr] | ^^^^^^^^^ invalid path separator [INFO] [stderr] | [INFO] [stderr] = help: to escape `[` and `]` characters, add '\' before them like `\[` or `\]` [INFO] [stderr] = note: `#[warn(rustdoc::broken_intra_doc_links)]` on by default [INFO] [stderr] [INFO] [stderr] warning: Rust code block is empty [INFO] [stderr] --> src/lib.rs:127:5 [INFO] [stderr] | [INFO] [stderr] 127 | //! ``` [INFO] [stderr] | ^^^ [INFO] [stderr] | [INFO] [stderr] = note: `#[warn(rustdoc::invalid_rust_codeblocks)]` on by default [INFO] [stderr] help: mark blocks that do not contain Rust code as text [INFO] [stderr] | [INFO] [stderr] 127 | //! ```text [INFO] [stderr] | ++++ [INFO] [stderr] [INFO] [stderr] warning: unclosed HTML tag `str` [INFO] [stderr] --> src/rete/facts.rs:42:41 [INFO] [stderr] | [INFO] [stderr] 42 | /// Get string representation as Cow<str> (zero-copy for String variant) [INFO] [stderr] | ^^^^^ [INFO] [stderr] | [INFO] [stderr] = note: `#[warn(rustdoc::invalid_html_tags)]` on by default [INFO] [stderr] help: try marking as source code [INFO] [stderr] | [INFO] [stderr] 42 | /// Get string representation as `Cow<str>` (zero-copy for String variant) [INFO] [stderr] | + + [INFO] [stderr] [INFO] [stderr] warning: unclosed HTML tag `FactHandle` [INFO] [stderr] --> src/rete/propagation.rs:249:17 [INFO] [stderr] | [INFO] [stderr] 249 | /// to a Vec<FactHandle> by looking up facts of the given type and matching [INFO] [stderr] | ^^^^^^^^^^^^ [INFO] [stderr] | [INFO] [stderr] help: try marking as source code [INFO] [stderr] | [INFO] [stderr] 249 | /// to a `Vec<FactHandle>` by looking up facts of the given type and matching [INFO] [stderr] | + + [INFO] [stderr] [INFO] [stderr] warning: `rust-rule-engine` (lib doc) generated 4 warnings (run `cargo fix --lib -p rust-rule-engine` to apply 1 suggestion) [INFO] [stderr] Finished `dev` profile [unoptimized + debuginfo] target(s) in 2.21s [INFO] [stderr] Generated /opt/rustwide/target/x86_64-unknown-linux-gnu/doc/rust_rule_engine/index.html [INFO] running `Command { std: "docker" "inspect" "be5c839db25d90dda94f9b41be46199dbad5e34f9ccb446b464c399e91945430", kill_on_drop: false }`