rust-rule-engine 1.19.0

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 #2870001 2026-02-03 10:08:13
# rustc version
rustc 1.95.0-nightly (f60a0f1bc 2026-02-02)# docs.rs version
docsrs 0.1.0 (db72ef84 2026-01-29 )# build log
[INFO] running `Command { std: "docker" "create" "-v" "/home/cratesfyi/workspace/builds/rust-rule-engine-1.19.0/target:/opt/rustwide/target:rw,Z" "-v" "/home/cratesfyi/workspace/builds/rust-rule-engine-1.19.0/source:/opt/rustwide/workdir:ro,Z" "-v" "/home/cratesfyi/workspace/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/home/cratesfyi/workspace/rustup-home:/opt/rustwide/rustup-home:ro,Z" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "DOCS_RS=1" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "6442450944" "--cpus" "6" "--user" "1001:1001" "--network" "none" "ghcr.io/rust-lang/crates-build-env/linux@sha256:29356a839a4d14451438f794ce8414e707d72405f44418718d724d22562fe786" "/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\", \"-20260202-1.95.0-nightly-f60a0f1bc\", \"--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: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] [stdout] bd5f4417e231747462e77ec100108f8430095985f4c350dda76dd7594f58ed4c
[INFO] running `Command { std: "docker" "start" "-a" "bd5f4417e231747462e77ec100108f8430095985f4c350dda76dd7594f58ed4c", kill_on_drop: false }`
[INFO] [stderr] warning: 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: 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: 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 v1.19.0 (/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]    |                                   ^^^^^^^^^ no item named `start:end` in scope
[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:96:5
[INFO] [stderr]    |
[INFO] [stderr] 96 | //! ```
[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] 96 | //! ```text
[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]     = note: `#[warn(rustdoc::invalid_html_tags)]` on by default
[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 3 warnings (run `cargo fix --lib -p rust-rule-engine` to apply 1 suggestion)
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 1.88s
[INFO] [stderr]    Generated /opt/rustwide/target/x86_64-unknown-linux-gnu/doc/rust_rule_engine/index.html
[INFO] running `Command { std: "docker" "inspect" "bd5f4417e231747462e77ec100108f8430095985f4c350dda76dd7594f58ed4c", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "bd5f4417e231747462e77ec100108f8430095985f4c350dda76dd7594f58ed4c", kill_on_drop: false }`
[INFO] [stdout] bd5f4417e231747462e77ec100108f8430095985f4c350dda76dd7594f58ed4c