[INFO] cloning repository https://github.com/nvasudevan/transitiond
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/nvasudevan/transitiond" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fnvasudevan%2Ftransitiond", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fnvasudevan%2Ftransitiond'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] fa1ff3a416df13c0423acd5c006f989a3f79f1d6
[INFO] checking nvasudevan/transitiond against master#dfd7b8d03fb93d0e03147d28b3be6d93260fa94d for pr-87050
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fnvasudevan%2Ftransitiond" "/workspace/builds/worker-13/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-13/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/nvasudevan/transitiond on toolchain dfd7b8d03fb93d0e03147d28b3be6d93260fa94d
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+dfd7b8d03fb93d0e03147d28b3be6d93260fa94d" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/nvasudevan/transitiond
[INFO] finished tweaking git repo https://github.com/nvasudevan/transitiond
[INFO] tweaked toml for git repo https://github.com/nvasudevan/transitiond written to /workspace/builds/worker-13/source/Cargo.toml
[INFO] crate git repo https://github.com/nvasudevan/transitiond already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+dfd7b8d03fb93d0e03147d28b3be6d93260fa94d" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-13/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-13/source:/opt/rustwide/workdir:ro,Z" "-v" "/var/lib/crater-agent-workspace/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/var/lib/crater-agent-workspace/rustup-home:/opt/rustwide/rustup-home:ro,Z" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--user" "0:0" "--network" "none" "ghcr.io/rust-lang/crates-build-env/linux@sha256:34b6a614d2c27851fe6cbf88fbd1137609cefab8b10d0615aaeb6fd47975d74e" "/opt/rustwide/cargo-home/bin/cargo" "+dfd7b8d03fb93d0e03147d28b3be6d93260fa94d" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 3a335eed8dd82332e0fc533a79b1f9d5d7bdb087df1bb8686f04a28ee7924604
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] running `Command { std: "docker" "start" "-a" "3a335eed8dd82332e0fc533a79b1f9d5d7bdb087df1bb8686f04a28ee7924604", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "3a335eed8dd82332e0fc533a79b1f9d5d7bdb087df1bb8686f04a28ee7924604", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "3a335eed8dd82332e0fc533a79b1f9d5d7bdb087df1bb8686f04a28ee7924604", kill_on_drop: false }`
[INFO] [stdout] 3a335eed8dd82332e0fc533a79b1f9d5d7bdb087df1bb8686f04a28ee7924604
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-13/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-13/source:/opt/rustwide/workdir:ro,Z" "-v" "/var/lib/crater-agent-workspace/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/var/lib/crater-agent-workspace/rustup-home:/opt/rustwide/rustup-home:ro,Z" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=forbid" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--user" "0:0" "--network" "none" "ghcr.io/rust-lang/crates-build-env/linux@sha256:34b6a614d2c27851fe6cbf88fbd1137609cefab8b10d0615aaeb6fd47975d74e" "/opt/rustwide/cargo-home/bin/cargo" "+dfd7b8d03fb93d0e03147d28b3be6d93260fa94d" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 359d75ae56e6fcccbfffd87d98a09b3b07c609a3e5e158314fe33ca86943f3b6
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] running `Command { std: "docker" "start" "-a" "359d75ae56e6fcccbfffd87d98a09b3b07c609a3e5e158314fe33ca86943f3b6", kill_on_drop: false }`
[INFO] [stderr]    Compiling proc-macro2 v1.0.27
[INFO] [stderr]    Compiling unicode-xid v0.2.2
[INFO] [stderr]    Compiling libc v0.2.97
[INFO] [stderr]     Checking cfg-if v1.0.0
[INFO] [stderr]    Compiling proc-macro-hack v0.5.19
[INFO] [stderr]    Compiling memchr v2.4.0
[INFO] [stderr]     Checking smallvec v1.6.1
[INFO] [stderr]    Compiling inventory v0.1.10
[INFO] [stderr]    Compiling unindent v0.1.7
[INFO] [stderr]    Compiling pyo3 v0.13.2
[INFO] [stderr]     Checking ppv-lite86 v0.2.10
[INFO] [stderr]     Checking regex-syntax v0.6.25
[INFO] [stderr]     Checking lock_api v0.4.4
[INFO] [stderr]     Checking instant v0.1.9
[INFO] [stderr]     Checking aho-corasick v0.7.18
[INFO] [stderr]    Compiling quote v1.0.9
[INFO] [stderr]     Checking getrandom v0.2.3
[INFO] [stderr]     Checking parking_lot_core v0.8.3
[INFO] [stderr]    Compiling syn v1.0.73
[INFO] [stderr]     Checking rand_core v0.6.3
[INFO] [stderr]     Checking parking_lot v0.11.1
[INFO] [stderr]     Checking rand_chacha v0.3.1
[INFO] [stderr]    Compiling paste-impl v0.1.18
[INFO] [stderr]     Checking rand v0.8.4
[INFO] [stderr]     Checking paste v0.1.18
[INFO] [stderr]     Checking regex v1.5.4
[INFO] [stderr]    Compiling pyo3-macros-backend v0.13.2
[INFO] [stderr]    Compiling indoc-impl v0.3.6
[INFO] [stderr]    Compiling ctor v0.1.20
[INFO] [stderr]    Compiling inventory-impl v0.1.10
[INFO] [stderr]    Compiling ghost v0.1.2
[INFO] [stderr]    Compiling pyo3-macros v0.13.2
[INFO] [stderr]     Checking indoc v0.3.6
[INFO] [stderr]     Checking transitiond v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: associated function is never used: `new`
[INFO] [stdout]   --> src/cfg/diagram.rs:17:8
[INFO] [stdout]    |
[INFO] [stdout] 17 |     fn new(label: String) -> Self {
[INFO] [stdout]    |        ^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `new`
[INFO] [stdout]   --> src/cfg/diagram.rs:50:19
[INFO] [stdout]    |
[INFO] [stdout] 50 |     pub(crate) fn new(source: Rc<TransitionNode>,
[INFO] [stdout]    |                   ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `new`
[INFO] [stdout]   --> src/cfg/diagram.rs:91:8
[INFO] [stdout]    |
[INFO] [stdout] 91 |     fn new(cfg: Cfg) -> Self {
[INFO] [stdout]    |        ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `find_vertex_by_label`
[INFO] [stdout]    --> src/cfg/diagram.rs:112:8
[INFO] [stdout]     |
[INFO] [stdout] 112 |     fn find_vertex_by_label(&self, label: &str) -> Option<&Rc<TransitionNode>> {
[INFO] [stdout]     |        ^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `build_terminal_only_edges`
[INFO] [stdout]    --> src/cfg/diagram.rs:122:8
[INFO] [stdout]     |
[INFO] [stdout] 122 |     fn build_terminal_only_edges(&mut self) -> Option<()> {
[INFO] [stdout]     |        ^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `build_start_terminal_edges`
[INFO] [stdout]    --> src/cfg/diagram.rs:150:8
[INFO] [stdout]     |
[INFO] [stdout] 150 |     fn build_start_terminal_edges(&mut self) -> Option<()> {
[INFO] [stdout]     |        ^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `build_start_non_terminal_edges`
[INFO] [stdout]    --> src/cfg/diagram.rs:179:8
[INFO] [stdout]     |
[INFO] [stdout] 179 |     fn build_start_non_terminal_edges(&mut self) -> Option<()> {
[INFO] [stdout]     |        ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `build_edges`
[INFO] [stdout]    --> src/cfg/diagram.rs:210:8
[INFO] [stdout]     |
[INFO] [stdout] 210 |     fn build_edges(&mut self) -> Option<()> {
[INFO] [stdout]     |        ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `graph`
[INFO] [stdout]    --> src/cfg/diagram.rs:219:15
[INFO] [stdout]     |
[INFO] [stdout] 219 | pub(crate) fn graph(cfgp: &str) -> Result<TransitionGraph, CfgParseError> {
[INFO] [stdout]     |               ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: constant is never used: `RULE_END_MARKER`
[INFO] [stdout]  --> src/cfg/parse.rs:7:1
[INFO] [stdout]   |
[INFO] [stdout] 7 | const RULE_END_MARKER: char = ';';
[INFO] [stdout]   | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `new`
[INFO] [stdout]   --> src/cfg/parse.rs:15:8
[INFO] [stdout]    |
[INFO] [stdout] 15 |     fn new(msg: String) -> Self {
[INFO] [stdout]    |        ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct is never constructed: `CfgParser`
[INFO] [stdout]   --> src/cfg/parse.rs:22:19
[INFO] [stdout]    |
[INFO] [stdout] 22 | pub(crate) struct CfgParser {
[INFO] [stdout]    |                   ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `new`
[INFO] [stdout]   --> src/cfg/parse.rs:28:8
[INFO] [stdout]    |
[INFO] [stdout] 28 |     fn new(tokens: Vec<char>) -> Self {
[INFO] [stdout]    |        ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `add_start_symbol`
[INFO] [stdout]   --> src/cfg/parse.rs:35:8
[INFO] [stdout]    |
[INFO] [stdout] 35 |     fn add_start_symbol(&mut self, start_symbol: String) {
[INFO] [stdout]    |        ^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `term_token_regex`
[INFO] [stdout]   --> src/cfg/parse.rs:41:8
[INFO] [stdout]    |
[INFO] [stdout] 41 |     fn term_token_regex(&self, s: &str) -> Option<TermSymbol> {
[INFO] [stdout]    |        ^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `non_term_token_regex`
[INFO] [stdout]   --> src/cfg/parse.rs:53:8
[INFO] [stdout]    |
[INFO] [stdout] 53 |     fn non_term_token_regex(&self, s: &str) -> Option<NonTermSymbol> {
[INFO] [stdout]    |        ^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `parse_lex_symbols`
[INFO] [stdout]   --> src/cfg/parse.rs:65:8
[INFO] [stdout]    |
[INFO] [stdout] 65 |     fn parse_lex_symbols(&self, s: &str) -> Option<LexSymbol> {
[INFO] [stdout]    |        ^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `header_directives`
[INFO] [stdout]   --> src/cfg/parse.rs:81:8
[INFO] [stdout]    |
[INFO] [stdout] 81 |     fn header_directives(&mut self, i: usize) -> Result<usize, CfgParseError> {
[INFO] [stdout]    |        ^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `footer_tag`
[INFO] [stdout]    --> src/cfg/parse.rs:125:8
[INFO] [stdout]     |
[INFO] [stdout] 125 |     fn footer_tag(&self, i: usize) -> Result<(), CfgParseError> {
[INFO] [stdout]     |        ^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `rule_end_marker`
[INFO] [stdout]    --> src/cfg/parse.rs:145:8
[INFO] [stdout]     |
[INFO] [stdout] 145 |     fn rule_end_marker(&self, i: usize) -> Option<usize> {
[INFO] [stdout]     |        ^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `parse_alt`
[INFO] [stdout]    --> src/cfg/parse.rs:159:8
[INFO] [stdout]     |
[INFO] [stdout] 159 |     fn parse_alt(&self, s: &str) -> Result<Vec<LexSymbol>, CfgParseError> {
[INFO] [stdout]     |        ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `rule_rhs_regex`
[INFO] [stdout]    --> src/cfg/parse.rs:173:8
[INFO] [stdout]     |
[INFO] [stdout] 173 |     fn rule_rhs_regex(&self, s: &str) -> Result<Vec<RuleAlt>, CfgParseError> {
[INFO] [stdout]     |        ^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `rule_regex`
[INFO] [stdout]    --> src/cfg/parse.rs:212:8
[INFO] [stdout]     |
[INFO] [stdout] 212 |     fn rule_regex<'a>(&self, s: &'a str) -> Result<(&'a str, &'a str), CfgParseError> {
[INFO] [stdout]     |        ^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `rule`
[INFO] [stdout]    --> src/cfg/parse.rs:235:8
[INFO] [stdout]     |
[INFO] [stdout] 235 |     fn rule(&self, i: usize) -> Result<(usize, CfgRule), CfgParseError> {
[INFO] [stdout]     |        ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `parse_rules`
[INFO] [stdout]    --> src/cfg/parse.rs:253:8
[INFO] [stdout]     |
[INFO] [stdout] 253 |     fn parse_rules(&mut self, i: usize) -> Result<(usize, Vec<CfgRule>), CfgParseError> {
[INFO] [stdout]     |        ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `run`
[INFO] [stdout]    --> src/cfg/parse.rs:277:8
[INFO] [stdout]     |
[INFO] [stdout] 277 |     fn run(&mut self) -> Result<Cfg, CfgParseError> {
[INFO] [stdout]     |        ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `parse`
[INFO] [stdout]    --> src/cfg/parse.rs:286:15
[INFO] [stdout]     |
[INFO] [stdout] 286 | pub(crate) fn parse(cfgp: &str) -> Result<Cfg, CfgParseError> {
[INFO] [stdout]     |               ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `new`
[INFO] [stdout]   --> src/cfg/graph.rs:16:8
[INFO] [stdout]    |
[INFO] [stdout] 16 |     fn new(msg: String) -> Self {
[INFO] [stdout]    |        ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `new`
[INFO] [stdout]   --> src/cfg/graph.rs:43:19
[INFO] [stdout]    |
[INFO] [stdout] 43 |     pub(crate) fn new(lhs: &str,
[INFO] [stdout]    |                   ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant is never constructed: `Derive`
[INFO] [stdout]    --> src/cfg/graph.rs:113:5
[INFO] [stdout]     |
[INFO] [stdout] 113 |     Derive,
[INFO] [stdout]     |     ^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant is never constructed: `Shift`
[INFO] [stdout]    --> src/cfg/graph.rs:114:5
[INFO] [stdout]     |
[INFO] [stdout] 114 |     Shift,
[INFO] [stdout]     |     ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant is never constructed: `Reduce`
[INFO] [stdout]    --> src/cfg/graph.rs:115:5
[INFO] [stdout]     |
[INFO] [stdout] 115 |     Reduce,
[INFO] [stdout]     |     ^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `new`
[INFO] [stdout]    --> src/cfg/graph.rs:132:19
[INFO] [stdout]     |
[INFO] [stdout] 132 |     pub(crate) fn new(source: Rc<Node>,
[INFO] [stdout]     |                   ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `edge_label`
[INFO] [stdout]    --> src/cfg/graph.rs:144:19
[INFO] [stdout]     |
[INFO] [stdout] 144 |     pub(crate) fn edge_label(&self) -> String {
[INFO] [stdout]     |                   ^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `source_node_id`
[INFO] [stdout]    --> src/cfg/graph.rs:148:19
[INFO] [stdout]     |
[INFO] [stdout] 148 |     pub(crate) fn source_node_id(&self) -> usize {
[INFO] [stdout]     |                   ^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `target_node_id`
[INFO] [stdout]    --> src/cfg/graph.rs:152:19
[INFO] [stdout]     |
[INFO] [stdout] 152 |     pub(crate) fn target_node_id(&self) -> usize {
[INFO] [stdout]     |                   ^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `derive`
[INFO] [stdout]    --> src/cfg/graph.rs:156:19
[INFO] [stdout]     |
[INFO] [stdout] 156 |     pub(crate) fn derive(source: Rc<Node>, target: Rc<Node>) -> Self {
[INFO] [stdout]     |                   ^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `reduce`
[INFO] [stdout]    --> src/cfg/graph.rs:165:19
[INFO] [stdout]     |
[INFO] [stdout] 165 |     pub(crate) fn reduce(source: Rc<Node>, target: Rc<Node>) -> Self {
[INFO] [stdout]     |                   ^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `new`
[INFO] [stdout]    --> src/cfg/graph.rs:201:19
[INFO] [stdout]     |
[INFO] [stdout] 201 |     pub(crate) fn new() -> Self {
[INFO] [stdout]     |                   ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `add_in_edge`
[INFO] [stdout]    --> src/cfg/graph.rs:208:19
[INFO] [stdout]     |
[INFO] [stdout] 208 |     pub(crate) fn add_in_edge(&mut self, edge: Rc<Edge>) {
[INFO] [stdout]     |                   ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `add_out_edge`
[INFO] [stdout]    --> src/cfg/graph.rs:212:19
[INFO] [stdout]     |
[INFO] [stdout] 212 |     pub(crate) fn add_out_edge(&mut self, edge: Rc<Edge>) {
[INFO] [stdout]     |                   ^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `new`
[INFO] [stdout]    --> src/cfg/graph.rs:239:19
[INFO] [stdout]     |
[INFO] [stdout] 239 |     pub(crate) fn new(node: &Rc<Node>, parent: &Rc<Node>) -> Self {
[INFO] [stdout]     |                   ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field is never read: `node_edge_map`
[INFO] [stdout]    --> src/cfg/graph.rs:257:5
[INFO] [stdout]     |
[INFO] [stdout] 257 |     pub(crate) node_edge_map: HashMap<usize, InOutEdges>,
[INFO] [stdout]     |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field is never read: `reduce_nodes`
[INFO] [stdout]    --> src/cfg/graph.rs:258:5
[INFO] [stdout]     |
[INFO] [stdout] 258 |     pub(crate) reduce_nodes: Vec<Rc<Node>>,
[INFO] [stdout]     |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field is never read: `cyclic_links`
[INFO] [stdout]    --> src/cfg/graph.rs:259:5
[INFO] [stdout]     |
[INFO] [stdout] 259 |     pub(crate) cyclic_links: Vec<CyclicLink>,
[INFO] [stdout]     |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field is never read: `node_id_counter`
[INFO] [stdout]    --> src/cfg/graph.rs:260:5
[INFO] [stdout]     |
[INFO] [stdout] 260 |     node_id_counter: usize,
[INFO] [stdout]     |     ^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `new`
[INFO] [stdout]    --> src/cfg/graph.rs:264:19
[INFO] [stdout]     |
[INFO] [stdout] 264 |     pub(crate) fn new() -> Self {
[INFO] [stdout]     |                   ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `node_id`
[INFO] [stdout]    --> src/cfg/graph.rs:275:19
[INFO] [stdout]     |
[INFO] [stdout] 275 |     pub(crate) fn node_id(&self) -> usize {
[INFO] [stdout]     |                   ^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `inc_node_id`
[INFO] [stdout]    --> src/cfg/graph.rs:279:19
[INFO] [stdout]     |
[INFO] [stdout] 279 |     pub(crate) fn inc_node_id(&mut self) -> usize {
[INFO] [stdout]     |                   ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `get_node_by_id`
[INFO] [stdout]    --> src/cfg/graph.rs:284:19
[INFO] [stdout]     |
[INFO] [stdout] 284 |     pub(crate) fn get_node_by_id(&self, node_id: usize) -> Option<&Rc<Node>> {
[INFO] [stdout]     |                   ^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `add_node`
[INFO] [stdout]    --> src/cfg/graph.rs:294:19
[INFO] [stdout]     |
[INFO] [stdout] 294 |     pub(crate) fn add_node(&mut self, node: Rc<Node>) {
[INFO] [stdout]     |                   ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `add_cycle_link`
[INFO] [stdout]    --> src/cfg/graph.rs:298:19
[INFO] [stdout]     |
[INFO] [stdout] 298 |     pub(crate) fn add_cycle_link(&mut self, link: CyclicLink) {
[INFO] [stdout]     |                   ^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `add_edge`
[INFO] [stdout]    --> src/cfg/graph.rs:302:19
[INFO] [stdout]     |
[INFO] [stdout] 302 |     pub(crate) fn add_edge(&mut self, edge: Rc<Edge>) {
[INFO] [stdout]     |                   ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `add_derive_edge`
[INFO] [stdout]    --> src/cfg/graph.rs:331:8
[INFO] [stdout]     |
[INFO] [stdout] 331 |     fn add_derive_edge(&mut self, from: &Rc<Node>, node: &Rc<Node>) {
[INFO] [stdout]     |        ^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `add_shift_edge`
[INFO] [stdout]    --> src/cfg/graph.rs:339:8
[INFO] [stdout]     |
[INFO] [stdout] 339 |     fn add_shift_edge(&mut self, src: &Rc<Node>, tgt: &Rc<Node>, derived: &LexSymbol) {
[INFO] [stdout]     |        ^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `add_reductions`
[INFO] [stdout]    --> src/cfg/graph.rs:349:19
[INFO] [stdout]     |
[INFO] [stdout] 349 |     pub(crate) fn add_reductions(&mut self, target: &Rc<Node>) {
[INFO] [stdout]     |                   ^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `add_cycle_derivations`
[INFO] [stdout]    --> src/cfg/graph.rs:366:8
[INFO] [stdout]     |
[INFO] [stdout] 366 |     fn add_cycle_derivations(&mut self) -> Result<(), CfgToGraphError> {
[INFO] [stdout]     |        ^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `print_graph`
[INFO] [stdout]    --> src/cfg/graph.rs:395:8
[INFO] [stdout]     |
[INFO] [stdout] 395 |     fn print_graph(&self) {
[INFO] [stdout]     |        ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `new`
[INFO] [stdout]    --> src/cfg/graph.rs:430:19
[INFO] [stdout]     |
[INFO] [stdout] 430 |     pub(crate) fn new(cfg: Cfg) -> Self {
[INFO] [stdout]     |                   ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `check_cycle`
[INFO] [stdout]    --> src/cfg/graph.rs:441:8
[INFO] [stdout]     |
[INFO] [stdout] 441 |     fn check_cycle<'a>(&self, node: &'a Rc<Node>) -> Option<&'a Rc<Node>> {
[INFO] [stdout]     |        ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `build_graph`
[INFO] [stdout]    --> src/cfg/graph.rs:465:8
[INFO] [stdout]     |
[INFO] [stdout] 465 |     fn build_graph(&self, nt: &str, parent: &Rc<Node>, mut g_result: &mut GraphResult)
[INFO] [stdout]     |        ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `instantiate`
[INFO] [stdout]    --> src/cfg/graph.rs:567:19
[INFO] [stdout]     |
[INFO] [stdout] 567 |     pub(crate) fn instantiate(&self) -> Result<GraphResult, CfgToGraphError> {
[INFO] [stdout]     |                   ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `graph`
[INFO] [stdout]    --> src/cfg/graph.rs:595:15
[INFO] [stdout]     |
[INFO] [stdout] 595 | pub(crate) fn graph(cfgp: &str) -> Result<CfgGraph, CfgParseError> {
[INFO] [stdout]     |               ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: constant is never used: `MAX_ITER_LIMIT`
[INFO] [stdout]   --> src/cfg/mutate.rs:10:1
[INFO] [stdout]    |
[INFO] [stdout] 10 | const MAX_ITER_LIMIT: usize = 500;
[INFO] [stdout]    | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `new`
[INFO] [stdout]   --> src/cfg/mutate.rs:18:8
[INFO] [stdout]    |
[INFO] [stdout] 18 |     fn new(msg: String) -> Self {
[INFO] [stdout]    |        ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct is never constructed: `CfgMutation`
[INFO] [stdout]   --> src/cfg/mutate.rs:25:19
[INFO] [stdout]    |
[INFO] [stdout] 25 | pub(crate) struct CfgMutation<'a> {
[INFO] [stdout]    |                   ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `new`
[INFO] [stdout]   --> src/cfg/mutate.rs:33:19
[INFO] [stdout]    |
[INFO] [stdout] 33 |     pub(crate) fn new(cfg: &'a Cfg) -> Self {
[INFO] [stdout]    |                   ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `terminal_indices`
[INFO] [stdout]   --> src/cfg/mutate.rs:43:8
[INFO] [stdout]    |
[INFO] [stdout] 43 |     fn terminal_indices(&mut self) {
[INFO] [stdout]    |        ^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `nt_alt_with_terminals`
[INFO] [stdout]   --> src/cfg/mutate.rs:63:8
[INFO] [stdout]    |
[INFO] [stdout] 63 |     fn nt_alt_with_terminals(&mut self) {
[INFO] [stdout]    |        ^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `instantiate`
[INFO] [stdout]   --> src/cfg/mutate.rs:76:19
[INFO] [stdout]    |
[INFO] [stdout] 76 |     pub(crate) fn instantiate(&mut self) {
[INFO] [stdout]    |                   ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `mut_cnt`
[INFO] [stdout]   --> src/cfg/mutate.rs:83:19
[INFO] [stdout]    |
[INFO] [stdout] 83 |     pub(crate) fn mut_cnt(&self) -> usize {
[INFO] [stdout]    |                   ^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `alt_with_terminals`
[INFO] [stdout]   --> src/cfg/mutate.rs:92:8
[INFO] [stdout]    |
[INFO] [stdout] 92 |     fn alt_with_terminals(&self, nt: &str) -> (usize, usize) {
[INFO] [stdout]    |        ^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `mutate`
[INFO] [stdout]    --> src/cfg/mutate.rs:109:8
[INFO] [stdout]     |
[INFO] [stdout] 109 |     fn mutate(&mut self) -> Result<Cfg, CfgMutateError> {
[INFO] [stdout]     |        ^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `run`
[INFO] [stdout]    --> src/cfg/mutate.rs:141:15
[INFO] [stdout]     |
[INFO] [stdout] 141 | pub(crate) fn run(cfg_mut: &mut CfgMutation, cnt: usize) -> Result<Vec<Cfg>, CfgMutateError> {
[INFO] [stdout]     |               ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `new`
[INFO] [stdout]   --> src/cfg/dataset.rs:13:8
[INFO] [stdout]    |
[INFO] [stdout] 13 |     fn new(msg: String) -> Self {
[INFO] [stdout]    |        ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `new`
[INFO] [stdout]   --> src/cfg/dataset.rs:31:19
[INFO] [stdout]    |
[INFO] [stdout] 31 |     pub(crate) fn new(cfg_id: usize, graph: GraphResult) -> Self {
[INFO] [stdout]    |                   ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct is never constructed: `CfgDataSet`
[INFO] [stdout]   --> src/cfg/dataset.rs:49:19
[INFO] [stdout]    |
[INFO] [stdout] 49 | pub(crate) struct CfgDataSet {
[INFO] [stdout]    |                   ^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `new`
[INFO] [stdout]   --> src/cfg/dataset.rs:56:19
[INFO] [stdout]    |
[INFO] [stdout] 56 |     pub(crate) fn new(cfg_data: Vec<CfgData>) -> Self {
[INFO] [stdout]    |                   ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `build_unique_nodes_map`
[INFO] [stdout]   --> src/cfg/dataset.rs:64:19
[INFO] [stdout]    |
[INFO] [stdout] 64 |     pub(crate) fn build_unique_nodes_map(&mut self) {
[INFO] [stdout]    |                   ^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `build_unique_edges_map`
[INFO] [stdout]   --> src/cfg/dataset.rs:81:8
[INFO] [stdout]    |
[INFO] [stdout] 81 |     fn build_unique_edges_map(&mut self) {
[INFO] [stdout]    |        ^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `write_node_labels`
[INFO] [stdout]    --> src/cfg/dataset.rs:100:8
[INFO] [stdout]     |
[INFO] [stdout] 100 |     fn write_node_labels(&self, data_dir: &Path) -> Result<(), CfgDataSetError> {
[INFO] [stdout]     |        ^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `write_graph_labels`
[INFO] [stdout]    --> src/cfg/dataset.rs:125:8
[INFO] [stdout]     |
[INFO] [stdout] 125 |     fn write_graph_labels(&self, data_dir: &Path) -> Result<(), CfgDataSetError> {
[INFO] [stdout]     |        ^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `write_graph_indicators`
[INFO] [stdout]    --> src/cfg/dataset.rs:140:8
[INFO] [stdout]     |
[INFO] [stdout] 140 |     fn write_graph_indicators(&self, data_dir: &Path) -> Result<(), CfgDataSetError> {
[INFO] [stdout]     |        ^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `write_edge_labels`
[INFO] [stdout]    --> src/cfg/dataset.rs:158:8
[INFO] [stdout]     |
[INFO] [stdout] 158 |     fn write_edge_labels(&self, data_dir: &Path) -> Result<(), CfgDataSetError> {
[INFO] [stdout]     |        ^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `persist`
[INFO] [stdout]    --> src/cfg/dataset.rs:198:8
[INFO] [stdout]     |
[INFO] [stdout] 198 |     fn persist(&self, data_dir: &Path) -> Result<(), CfgDataSetError> {
[INFO] [stdout]     |        ^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `generate`
[INFO] [stdout]    --> src/cfg/dataset.rs:208:15
[INFO] [stdout]     |
[INFO] [stdout] 208 | pub(crate) fn generate(cfg: &Cfg) -> Vec<Cfg> {
[INFO] [stdout]     |               ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `build_dataset`
[INFO] [stdout]    --> src/cfg/dataset.rs:220:4
[INFO] [stdout]     |
[INFO] [stdout] 220 | fn build_dataset(cfgs: &Vec<Cfg>, data_dir: &Path) -> Result<(), CfgDataSetError> {
[INFO] [stdout]     |    ^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant is never constructed: `NonTerminal`
[INFO] [stdout]   --> src/cfg/mod.rs:12:5
[INFO] [stdout]    |
[INFO] [stdout] 12 |     NonTerminal,
[INFO] [stdout]    |     ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant is never constructed: `Terminal`
[INFO] [stdout]   --> src/cfg/mod.rs:13:5
[INFO] [stdout]    |
[INFO] [stdout] 13 |     Terminal,
[INFO] [stdout]    |     ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant is never constructed: `Epsilon`
[INFO] [stdout]   --> src/cfg/mod.rs:14:5
[INFO] [stdout]    |
[INFO] [stdout] 14 |     Epsilon,
[INFO] [stdout]    |     ^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `new`
[INFO] [stdout]   --> src/cfg/mod.rs:30:19
[INFO] [stdout]    |
[INFO] [stdout] 30 |     pub(crate) fn new(tok: String) -> Self {
[INFO] [stdout]    |                   ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `new`
[INFO] [stdout]   --> src/cfg/mod.rs:61:19
[INFO] [stdout]    |
[INFO] [stdout] 61 |     pub(crate) fn new(tok: String) -> Self {
[INFO] [stdout]    |                   ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `new`
[INFO] [stdout]   --> src/cfg/mod.rs:91:19
[INFO] [stdout]    |
[INFO] [stdout] 91 |     pub(crate) fn new() -> Self {
[INFO] [stdout]    |                   ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant is never constructed: `NonTerm`
[INFO] [stdout]    --> src/cfg/mod.rs:114:5
[INFO] [stdout]     |
[INFO] [stdout] 114 |     NonTerm(NonTermSymbol),
[INFO] [stdout]     |     ^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant is never constructed: `Term`
[INFO] [stdout]    --> src/cfg/mod.rs:115:5
[INFO] [stdout]     |
[INFO] [stdout] 115 |     Term(TermSymbol),
[INFO] [stdout]     |     ^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant is never constructed: `Epsilon`
[INFO] [stdout]    --> src/cfg/mod.rs:116:5
[INFO] [stdout]     |
[INFO] [stdout] 116 |     Epsilon(EpsilonSymbol),
[INFO] [stdout]     |     ^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `to_term`
[INFO] [stdout]    --> src/cfg/mod.rs:136:8
[INFO] [stdout]     |
[INFO] [stdout] 136 |     fn to_term(&self) -> Option<&TermSymbol> {
[INFO] [stdout]     |        ^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `new`
[INFO] [stdout]    --> src/cfg/mod.rs:187:19
[INFO] [stdout]     |
[INFO] [stdout] 187 |     pub(crate) fn new(lex_symbols: Vec<LexSymbol>) -> Self {
[INFO] [stdout]     |                   ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `new`
[INFO] [stdout]    --> src/cfg/mod.rs:225:19
[INFO] [stdout]     |
[INFO] [stdout] 225 |     pub(crate) fn new(lhs: String, rhs: Vec<RuleAlt>) -> Self {
[INFO] [stdout]     |                   ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `new`
[INFO] [stdout]    --> src/cfg/mod.rs:262:19
[INFO] [stdout]     |
[INFO] [stdout] 262 |     pub(crate) fn new(rules: Vec<CfgRule>) -> Self {
[INFO] [stdout]     |                   ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `as_yacc`
[INFO] [stdout]    --> src/cfg/mod.rs:268:19
[INFO] [stdout]     |
[INFO] [stdout] 268 |     pub(crate) fn as_yacc(&self) -> String {
[INFO] [stdout]     |                   ^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `terminals`
[INFO] [stdout]    --> src/cfg/mod.rs:278:19
[INFO] [stdout]     |
[INFO] [stdout] 278 |     pub(crate) fn terminals(&self) -> Vec<&TermSymbol> {
[INFO] [stdout]     |                   ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `get_rule`
[INFO] [stdout]    --> src/cfg/mod.rs:295:19
[INFO] [stdout]     |
[INFO] [stdout] 295 |     pub(crate) fn get_rule(&self, name: &str) -> Option<&CfgRule> {
[INFO] [stdout]     |                   ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `get_alt_mut`
[INFO] [stdout]    --> src/cfg/mod.rs:305:19
[INFO] [stdout]     |
[INFO] [stdout] 305 |     pub(crate) fn get_alt_mut(&mut self, name: &str, alt_index: usize) -> Option<&mut RuleAlt> {
[INFO] [stdout]     |                   ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `terminals_only_alts`
[INFO] [stdout]    --> src/cfg/mod.rs:316:19
[INFO] [stdout]     |
[INFO] [stdout] 316 |     pub(crate) fn terminals_only_alts(&self) -> Vec<(&str, &RuleAlt)> {
[INFO] [stdout]     |                   ^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `alt_start_with_terminals`
[INFO] [stdout]    --> src/cfg/mod.rs:336:19
[INFO] [stdout]     |
[INFO] [stdout] 336 |     pub(crate) fn alt_start_with_terminals(&self) -> Vec<(&str, &RuleAlt, i8)> {
[INFO] [stdout]     |                   ^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `alt_start_with_non_terminals`
[INFO] [stdout]    --> src/cfg/mod.rs:362:19
[INFO] [stdout]     |
[INFO] [stdout] 362 |     pub(crate) fn alt_start_with_non_terminals(&self) -> Vec<(&str, &RuleAlt)> {
[INFO] [stdout]     |                   ^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 107 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field is never read: `start_symbol`
[INFO] [stdout]   --> src/cfg/parse.rs:24:5
[INFO] [stdout]    |
[INFO] [stdout] 24 |     start_symbol: String,
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 51.42s
[INFO] running `Command { std: "docker" "inspect" "359d75ae56e6fcccbfffd87d98a09b3b07c609a3e5e158314fe33ca86943f3b6", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "359d75ae56e6fcccbfffd87d98a09b3b07c609a3e5e158314fe33ca86943f3b6", kill_on_drop: false }`
[INFO] [stdout] 359d75ae56e6fcccbfffd87d98a09b3b07c609a3e5e158314fe33ca86943f3b6