[INFO] cloning repository https://github.com/lovebaihezi/llsyntax
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/lovebaihezi/llsyntax" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Flovebaihezi%2Fllsyntax", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Flovebaihezi%2Fllsyntax'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 9167bb2ddc6d41d19044202e9673f30707429555
[INFO] testing lovebaihezi/llsyntax against try#c2e32f1c9652b13ed99608599c1e855462f421f3 for pr-146098-7
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Flovebaihezi%2Fllsyntax" "/workspace/builds/worker-5-tc2/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-5-tc2/source'...
[INFO] [stderr] done.
[INFO] removed /workspace/builds/worker-5-tc2/source/rust-toolchain.toml
[INFO] started tweaking git repo https://github.com/lovebaihezi/llsyntax
[INFO] finished tweaking git repo https://github.com/lovebaihezi/llsyntax
[INFO] tweaked toml for git repo https://github.com/lovebaihezi/llsyntax written to /workspace/builds/worker-5-tc2/source/Cargo.toml
[INFO] validating manifest of git repo https://github.com/lovebaihezi/llsyntax on toolchain c2e32f1c9652b13ed99608599c1e855462f421f3
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+c2e32f1c9652b13ed99608599c1e855462f421f3" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate git repo https://github.com/lovebaihezi/llsyntax already has a lockfile, it will not be regenerated
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+c2e32f1c9652b13ed99608599c1e855462f421f3" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc2/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@sha256:4848fb76d95f26979359cc7e45710b1dbc8f3acb7aeedee7c460d7702230f228" "/opt/rustwide/cargo-home/bin/cargo" "+c2e32f1c9652b13ed99608599c1e855462f421f3" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 0257d0bad52075595e69c5b25daf2ddafc7883f56ddf2b06445a2e9eb23e2917
[INFO] running `Command { std: "docker" "start" "-a" "0257d0bad52075595e69c5b25daf2ddafc7883f56ddf2b06445a2e9eb23e2917", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "0257d0bad52075595e69c5b25daf2ddafc7883f56ddf2b06445a2e9eb23e2917", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "0257d0bad52075595e69c5b25daf2ddafc7883f56ddf2b06445a2e9eb23e2917", kill_on_drop: false }`
[INFO] [stdout] 0257d0bad52075595e69c5b25daf2ddafc7883f56ddf2b06445a2e9eb23e2917
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc2/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" "RUSTDOCFLAGS=--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@sha256:4848fb76d95f26979359cc7e45710b1dbc8f3acb7aeedee7c460d7702230f228" "/opt/rustwide/cargo-home/bin/cargo" "+c2e32f1c9652b13ed99608599c1e855462f421f3" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 0a1acd1dc6a92031f6f3ee383ce875a1e6d746011d85b3e46cc416b7caa71578
[INFO] running `Command { std: "docker" "start" "-a" "0a1acd1dc6a92031f6f3ee383ce875a1e6d746011d85b3e46cc416b7caa71578", kill_on_drop: false }`
[INFO] [stderr]    Compiling autocfg v1.0.1
[INFO] [stderr]    Compiling crossbeam-utils v0.8.5
[INFO] [stderr]    Compiling crossbeam-epoch v0.9.5
[INFO] [stderr]    Compiling proc-macro2 v1.0.32
[INFO] [stderr]    Compiling scopeguard v1.1.0
[INFO] [stderr]    Compiling libc v0.2.108
[INFO] [stderr]    Compiling unicode-xid v0.2.2
[INFO] [stderr]    Compiling rayon-core v1.9.1
[INFO] [stderr]    Compiling log v0.4.14
[INFO] [stderr]    Compiling syn v1.0.81
[INFO] [stderr]    Compiling memchr v2.4.1
[INFO] [stderr]    Compiling tracing-core v0.1.21
[INFO] [stderr]    Compiling crossbeam-queue v0.3.2
[INFO] [stderr]    Compiling once_cell v1.8.0
[INFO] [stderr]    Compiling sharded-slab v0.1.4
[INFO] [stderr]    Compiling smallvec v1.7.0
[INFO] [stderr]    Compiling regex-syntax v0.6.25
[INFO] [stderr]    Compiling pin-project-lite v0.2.7
[INFO] [stderr]    Compiling either v1.6.1
[INFO] [stderr]    Compiling thread_local v1.1.3
[INFO] [stderr]    Compiling memoffset v0.6.4
[INFO] [stderr]    Compiling rayon v1.5.1
[INFO] [stderr]    Compiling tracing-log v0.1.2
[INFO] [stderr]    Compiling crossbeam-channel v0.5.1
[INFO] [stderr]    Compiling crossbeam-deque v0.8.1
[INFO] [stderr]    Compiling num_cpus v1.13.0
[INFO] [stderr]    Compiling quote v1.0.10
[INFO] [stderr]    Compiling aho-corasick v0.7.18
[INFO] [stderr]    Compiling tracing-subscriber v0.3.2
[INFO] [stderr]    Compiling crossbeam v0.8.1
[INFO] [stderr]    Compiling regex v1.5.4
[INFO] [stderr]    Compiling tracing-attributes v0.1.18
[INFO] [stderr]    Compiling tracing v0.1.29
[INFO] [stderr]    Compiling syntax v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused import: `implement::*`
[INFO] [stdout]  --> src/grammar/mod.rs:3:9
[INFO] [stdout]   |
[INFO] [stdout] 3 | pub use implement::*;
[INFO] [stdout]   |         ^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `operator::*`
[INFO] [stdout]  --> src/grammar/mod.rs:4:9
[INFO] [stdout]   |
[INFO] [stdout] 4 | pub use operator::*;
[INFO] [stdout]   |         ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `HashSet`
[INFO] [stdout]  --> src/grammar/mod.rs:6:28
[INFO] [stdout]   |
[INFO] [stdout] 6 |     collections::{HashMap, HashSet},
[INFO] [stdout]   |                            ^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `implement::*`
[INFO] [stdout]  --> src/syntax/mod.rs:2:9
[INFO] [stdout]   |
[INFO] [stdout] 2 | pub use implement::*;
[INFO] [stdout]   |         ^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the feature `derive_default_enum` has been stable since 1.62.0 and no longer requires an attribute to enable
[INFO] [stdout]  --> src/lib.rs:1:12
[INFO] [stdout]   |
[INFO] [stdout] 1 | #![feature(derive_default_enum)]
[INFO] [stdout]   |            ^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(stable_features)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unreachable expression
[INFO] [stdout]    --> src/grammar/implement.rs:118:9
[INFO] [stdout]     |
[INFO] [stdout] 117 |         todo!();
[INFO] [stdout]     |         ------- any code following this expression is unreachable
[INFO] [stdout] 118 |         s
[INFO] [stdout]     |         ^ unreachable expression
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unreachable_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `rayon::prelude`
[INFO] [stdout]  --> src/grammar/implement.rs:1:5
[INFO] [stdout]   |
[INFO] [stdout] 1 | use rayon::prelude::*;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]    --> src/grammar/implement.rs:110:13
[INFO] [stdout]     |
[INFO] [stdout] 110 |         let mut s = G::new(State::NonTerminal(0));
[INFO] [stdout]     |             ----^
[INFO] [stdout]     |             |
[INFO] [stdout]     |             help: remove this `mut`
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_mut)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `s`
[INFO] [stdout]    --> src/grammar/implement.rs:110:13
[INFO] [stdout]     |
[INFO] [stdout] 110 |         let mut s = G::new(State::NonTerminal(0));
[INFO] [stdout]     |             ^^^^^ help: if this is intentional, prefix it with an underscore: `_s`
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_variables)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `map`
[INFO] [stdout]    --> src/grammar/implement.rs:111:13
[INFO] [stdout]     |
[INFO] [stdout] 111 |         let map: HashMap<&T, usize> = self
[INFO] [stdout]     |             ^^^ help: if this is intentional, prefix it with an underscore: `_map`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `G` is never constructed
[INFO] [stdout]   --> src/grammar/mod.rs:11:12
[INFO] [stdout]    |
[INFO] [stdout] 11 | pub struct G<T>
[INFO] [stdout]    |            ^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `Product` is never constructed
[INFO] [stdout]   --> src/grammar/mod.rs:21:12
[INFO] [stdout]    |
[INFO] [stdout] 21 | pub struct Product<T>(Vec<T>)
[INFO] [stdout]    |            ^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `Products` is never constructed
[INFO] [stdout]   --> src/grammar/mod.rs:28:12
[INFO] [stdout]    |
[INFO] [stdout] 28 | pub struct Products<T>(Vec<Product<T>>)
[INFO] [stdout]    |            ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait `Symbols` is never used
[INFO] [stdout]   --> src/grammar/mod.rs:94:11
[INFO] [stdout]    |
[INFO] [stdout] 94 | pub trait Symbols {
[INFO] [stdout]    |           ^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: enum `EliminationLeftRecursion` is never used
[INFO] [stdout]   --> src/grammar/implement.rs:10:10
[INFO] [stdout]    |
[INFO] [stdout] 10 | pub enum EliminationLeftRecursion {
[INFO] [stdout]    |          ^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: enum `State` is never used
[INFO] [stdout]   --> src/grammar/implement.rs:16:10
[INFO] [stdout]    |
[INFO] [stdout] 16 | pub enum State {
[INFO] [stdout]    |          ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: multiple associated items are never used
[INFO] [stdout]    --> src/grammar/implement.rs:50:12
[INFO] [stdout]     |
[INFO] [stdout]  46 | / impl<T> G<T>
[INFO] [stdout]  47 | | where
[INFO] [stdout]  48 | |     T: std::fmt::Debug + PartialEq + Hash + Eq + Symbols + Default + Clone,
[INFO] [stdout]     | |___________________________________________________________________________- associated items in this implementation
[INFO] [stdout]  49 |   {
[INFO] [stdout]  50 |       pub fn new(start: T) -> Self {
[INFO] [stdout]     |              ^^^
[INFO] [stdout] ...
[INFO] [stdout]  58 |       pub fn nonterminals(&self) -> Vec<&T> {
[INFO] [stdout]     |              ^^^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout]  62 |       pub fn is_left_recursion(&self) -> bool {
[INFO] [stdout]     |              ^^^^^^^^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 106 |       pub fn elimination_left_recursion(&self) -> G<State> {
[INFO] [stdout]     |              ^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 122 |       pub fn is_cycle(&self) -> bool {
[INFO] [stdout]     |              ^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 166 |       pub fn is_epsilon_product(&self) -> bool {
[INFO] [stdout]     |              ^^^^^^^^^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 175 |       pub fn first(&self, sign: T) -> HashSet<T> {
[INFO] [stdout]     |              ^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 200 |       pub fn will_product_epslion(&self, sign: &T) -> bool {
[INFO] [stdout]     |              ^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 234 |       pub fn follow(&self, sign: T) -> HashSet<T> {
[INFO] [stdout]     |              ^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 282 |       pub fn generate_predictive_parsing(&self) -> HashMap<T, HashMap<T, (usize, usize)>> {
[INFO] [stdout]     |              ^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 323 |       fn check(&self, iter: &mut impl Iterator<Item = T>) -> Result<Vec<(usize, usize)>, String>
[INFO] [stdout]     |          ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 14.09s
[INFO] running `Command { std: "docker" "inspect" "0a1acd1dc6a92031f6f3ee383ce875a1e6d746011d85b3e46cc416b7caa71578", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "0a1acd1dc6a92031f6f3ee383ce875a1e6d746011d85b3e46cc416b7caa71578", kill_on_drop: false }`
[INFO] [stdout] 0a1acd1dc6a92031f6f3ee383ce875a1e6d746011d85b3e46cc416b7caa71578
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc2/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" "RUSTDOCFLAGS=--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@sha256:4848fb76d95f26979359cc7e45710b1dbc8f3acb7aeedee7c460d7702230f228" "/opt/rustwide/cargo-home/bin/cargo" "+c2e32f1c9652b13ed99608599c1e855462f421f3" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 5a6ea183e6a628df2634604b34a233725618f21a36fba508eb1db60fd8086bed
[INFO] running `Command { std: "docker" "start" "-a" "5a6ea183e6a628df2634604b34a233725618f21a36fba508eb1db60fd8086bed", kill_on_drop: false }`
[INFO] [stdout] warning: unused import: `implement::*`
[INFO] [stdout]  --> src/grammar/mod.rs:3:9
[INFO] [stdout]   |
[INFO] [stdout] 3 | pub use implement::*;
[INFO] [stdout]   |         ^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `operator::*`
[INFO] [stdout]  --> src/grammar/mod.rs:4:9
[INFO] [stdout]   |
[INFO] [stdout] 4 | pub use operator::*;
[INFO] [stdout]   |         ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]    Compiling syntax v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused import: `HashSet`
[INFO] [stdout]  --> src/grammar/mod.rs:6:28
[INFO] [stdout]   |
[INFO] [stdout] 6 |     collections::{HashMap, HashSet},
[INFO] [stdout]   |                            ^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `implement::*`
[INFO] [stdout]  --> src/syntax/mod.rs:2:9
[INFO] [stdout]   |
[INFO] [stdout] 2 | pub use implement::*;
[INFO] [stdout]   |         ^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the feature `derive_default_enum` has been stable since 1.62.0 and no longer requires an attribute to enable
[INFO] [stdout]  --> src/lib.rs:1:12
[INFO] [stdout]   |
[INFO] [stdout] 1 | #![feature(derive_default_enum)]
[INFO] [stdout]   |            ^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(stable_features)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unreachable expression
[INFO] [stdout]    --> src/grammar/implement.rs:118:9
[INFO] [stdout]     |
[INFO] [stdout] 117 |         todo!();
[INFO] [stdout]     |         ------- any code following this expression is unreachable
[INFO] [stdout] 118 |         s
[INFO] [stdout]     |         ^ unreachable expression
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unreachable_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `rayon::prelude`
[INFO] [stdout]  --> src/grammar/implement.rs:1:5
[INFO] [stdout]   |
[INFO] [stdout] 1 | use rayon::prelude::*;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]    --> src/grammar/implement.rs:110:13
[INFO] [stdout]     |
[INFO] [stdout] 110 |         let mut s = G::new(State::NonTerminal(0));
[INFO] [stdout]     |             ----^
[INFO] [stdout]     |             |
[INFO] [stdout]     |             help: remove this `mut`
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_mut)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `s`
[INFO] [stdout]    --> src/grammar/implement.rs:110:13
[INFO] [stdout]     |
[INFO] [stdout] 110 |         let mut s = G::new(State::NonTerminal(0));
[INFO] [stdout]     |             ^^^^^ help: if this is intentional, prefix it with an underscore: `_s`
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_variables)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `map`
[INFO] [stdout]    --> src/grammar/implement.rs:111:13
[INFO] [stdout]     |
[INFO] [stdout] 111 |         let map: HashMap<&T, usize> = self
[INFO] [stdout]     |             ^^^ help: if this is intentional, prefix it with an underscore: `_map`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `G` is never constructed
[INFO] [stdout]   --> src/grammar/mod.rs:11:12
[INFO] [stdout]    |
[INFO] [stdout] 11 | pub struct G<T>
[INFO] [stdout]    |            ^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `Product` is never constructed
[INFO] [stdout]   --> src/grammar/mod.rs:21:12
[INFO] [stdout]    |
[INFO] [stdout] 21 | pub struct Product<T>(Vec<T>)
[INFO] [stdout]    |            ^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `Products` is never constructed
[INFO] [stdout]   --> src/grammar/mod.rs:28:12
[INFO] [stdout]    |
[INFO] [stdout] 28 | pub struct Products<T>(Vec<Product<T>>)
[INFO] [stdout]    |            ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait `Symbols` is never used
[INFO] [stdout]   --> src/grammar/mod.rs:94:11
[INFO] [stdout]    |
[INFO] [stdout] 94 | pub trait Symbols {
[INFO] [stdout]    |           ^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: enum `EliminationLeftRecursion` is never used
[INFO] [stdout]   --> src/grammar/implement.rs:10:10
[INFO] [stdout]    |
[INFO] [stdout] 10 | pub enum EliminationLeftRecursion {
[INFO] [stdout]    |          ^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: enum `State` is never used
[INFO] [stdout]   --> src/grammar/implement.rs:16:10
[INFO] [stdout]    |
[INFO] [stdout] 16 | pub enum State {
[INFO] [stdout]    |          ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: multiple associated items are never used
[INFO] [stdout]    --> src/grammar/implement.rs:50:12
[INFO] [stdout]     |
[INFO] [stdout]  46 | / impl<T> G<T>
[INFO] [stdout]  47 | | where
[INFO] [stdout]  48 | |     T: std::fmt::Debug + PartialEq + Hash + Eq + Symbols + Default + Clone,
[INFO] [stdout]     | |___________________________________________________________________________- associated items in this implementation
[INFO] [stdout]  49 |   {
[INFO] [stdout]  50 |       pub fn new(start: T) -> Self {
[INFO] [stdout]     |              ^^^
[INFO] [stdout] ...
[INFO] [stdout]  58 |       pub fn nonterminals(&self) -> Vec<&T> {
[INFO] [stdout]     |              ^^^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout]  62 |       pub fn is_left_recursion(&self) -> bool {
[INFO] [stdout]     |              ^^^^^^^^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 106 |       pub fn elimination_left_recursion(&self) -> G<State> {
[INFO] [stdout]     |              ^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 122 |       pub fn is_cycle(&self) -> bool {
[INFO] [stdout]     |              ^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 166 |       pub fn is_epsilon_product(&self) -> bool {
[INFO] [stdout]     |              ^^^^^^^^^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 175 |       pub fn first(&self, sign: T) -> HashSet<T> {
[INFO] [stdout]     |              ^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 200 |       pub fn will_product_epslion(&self, sign: &T) -> bool {
[INFO] [stdout]     |              ^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 234 |       pub fn follow(&self, sign: T) -> HashSet<T> {
[INFO] [stdout]     |              ^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 282 |       pub fn generate_predictive_parsing(&self) -> HashMap<T, HashMap<T, (usize, usize)>> {
[INFO] [stdout]     |              ^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 323 |       fn check(&self, iter: &mut impl Iterator<Item = T>) -> Result<Vec<(usize, usize)>, String>
[INFO] [stdout]     |          ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `implement::*`
[INFO] [stdout]  --> src/grammar/mod.rs:3:9
[INFO] [stdout]   |
[INFO] [stdout] 3 | pub use implement::*;
[INFO] [stdout]   |         ^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `operator::*`
[INFO] [stdout]  --> src/grammar/mod.rs:4:9
[INFO] [stdout]   |
[INFO] [stdout] 4 | pub use operator::*;
[INFO] [stdout]   |         ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `HashSet`
[INFO] [stdout]  --> src/grammar/mod.rs:6:28
[INFO] [stdout]   |
[INFO] [stdout] 6 |     collections::{HashMap, HashSet},
[INFO] [stdout]   |                            ^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `implement::*`
[INFO] [stdout]  --> src/syntax/mod.rs:2:9
[INFO] [stdout]   |
[INFO] [stdout] 2 | pub use implement::*;
[INFO] [stdout]   |         ^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the feature `derive_default_enum` has been stable since 1.62.0 and no longer requires an attribute to enable
[INFO] [stdout]  --> src/lib.rs:1:12
[INFO] [stdout]   |
[INFO] [stdout] 1 | #![feature(derive_default_enum)]
[INFO] [stdout]   |            ^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(stable_features)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unreachable expression
[INFO] [stdout]    --> src/grammar/implement.rs:118:9
[INFO] [stdout]     |
[INFO] [stdout] 117 |         todo!();
[INFO] [stdout]     |         ------- any code following this expression is unreachable
[INFO] [stdout] 118 |         s
[INFO] [stdout]     |         ^ unreachable expression
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unreachable_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `rayon::prelude`
[INFO] [stdout]  --> src/grammar/implement.rs:1:5
[INFO] [stdout]   |
[INFO] [stdout] 1 | use rayon::prelude::*;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]    --> src/grammar/implement.rs:110:13
[INFO] [stdout]     |
[INFO] [stdout] 110 |         let mut s = G::new(State::NonTerminal(0));
[INFO] [stdout]     |             ----^
[INFO] [stdout]     |             |
[INFO] [stdout]     |             help: remove this `mut`
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_mut)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `s`
[INFO] [stdout]    --> src/grammar/implement.rs:110:13
[INFO] [stdout]     |
[INFO] [stdout] 110 |         let mut s = G::new(State::NonTerminal(0));
[INFO] [stdout]     |             ^^^^^ help: if this is intentional, prefix it with an underscore: `_s`
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_variables)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `map`
[INFO] [stdout]    --> src/grammar/implement.rs:111:13
[INFO] [stdout]     |
[INFO] [stdout] 111 |         let map: HashMap<&T, usize> = self
[INFO] [stdout]     |             ^^^ help: if this is intentional, prefix it with an underscore: `_map`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `i`
[INFO] [stdout]    --> src/grammar/implement.rs:666:13
[INFO] [stdout]     |
[INFO] [stdout] 666 |         for i in &all_keys {
[INFO] [stdout]     |             ^
[INFO] [stdout]     |
[INFO] [stdout] help: you might have meant to pattern match on the similarly named variant `S`
[INFO] [stdout]     |
[INFO] [stdout] 666 -         for i in &all_keys {
[INFO] [stdout] 666 +         for grammar::implement::grammar_implement_test::home_work::Test::S in &all_keys {
[INFO] [stdout]     |
[INFO] [stdout] help: if this is intentional, prefix it with an underscore
[INFO] [stdout]     |
[INFO] [stdout] 666 |         for _i in &all_keys {
[INFO] [stdout]     |             +
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: method `is_dollar` is never used
[INFO] [stdout]    --> src/grammar/mod.rs:101:8
[INFO] [stdout]     |
[INFO] [stdout]  94 | pub trait Symbols {
[INFO] [stdout]     |           ------- method in this trait
[INFO] [stdout] ...
[INFO] [stdout] 101 |     fn is_dollar(&self) -> bool;
[INFO] [stdout]     |        ^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: enum `EliminationLeftRecursion` is never used
[INFO] [stdout]   --> src/grammar/implement.rs:10:10
[INFO] [stdout]    |
[INFO] [stdout] 10 | pub enum EliminationLeftRecursion {
[INFO] [stdout]    |          ^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant `Terminal` is never constructed
[INFO] [stdout]   --> src/grammar/implement.rs:21:5
[INFO] [stdout]    |
[INFO] [stdout] 16 | pub enum State {
[INFO] [stdout]    |          ----- variant in this enum
[INFO] [stdout] ...
[INFO] [stdout] 21 |     Terminal(usize),
[INFO] [stdout]    |     ^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `State` has derived impls for the traits `Clone` and `Debug`, but these are intentionally ignored during dead code analysis
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 1.80s
[INFO] running `Command { std: "docker" "inspect" "5a6ea183e6a628df2634604b34a233725618f21a36fba508eb1db60fd8086bed", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "5a6ea183e6a628df2634604b34a233725618f21a36fba508eb1db60fd8086bed", kill_on_drop: false }`
[INFO] [stdout] 5a6ea183e6a628df2634604b34a233725618f21a36fba508eb1db60fd8086bed
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc2/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" "RUSTDOCFLAGS=--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@sha256:4848fb76d95f26979359cc7e45710b1dbc8f3acb7aeedee7c460d7702230f228" "/opt/rustwide/cargo-home/bin/cargo" "+c2e32f1c9652b13ed99608599c1e855462f421f3" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] 2b2e9094beabdccd6f4f07d77b9705bcd55c21ea755bafbbf71881d69cc7c8e1
[INFO] running `Command { std: "docker" "start" "-a" "2b2e9094beabdccd6f4f07d77b9705bcd55c21ea755bafbbf71881d69cc7c8e1", kill_on_drop: false }`
[INFO] [stderr] warning: unused import: `implement::*`
[INFO] [stdout] 
[INFO] [stderr]  --> src/grammar/mod.rs:3:9
[INFO] [stdout] running 14 tests
[INFO] [stderr]   |
[INFO] [stdout] test grammar::implement::grammar_implement_test::elimination_left_recursion ... ignored, elimination_left_recursion not finished!
[INFO] [stderr] 3 | pub use implement::*;
[INFO] [stdout] test grammar::implement::grammar_implement_test::check ... ok
[INFO] [stderr]   |         ^^^^^^^^^^^^
[INFO] [stdout] test grammar::implement::grammar_implement_test::is_cycle ... ok
[INFO] [stderr]   |
[INFO] [stdout] test grammar::implement::grammar_implement_test::home_work ... ok
[INFO] [stderr]   = note: `#[warn(unused_imports)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] test grammar::implement::grammar_implement_test::first_set ... ok
[INFO] [stderr] 
[INFO] [stdout] test grammar::implement::grammar_implement_test::is_left_recursion ... ok
[INFO] [stderr] warning: unused import: `operator::*`
[INFO] [stdout] test grammar::implement::grammar_implement_test::is_epsilon_product ... ok
[INFO] [stderr]  --> src/grammar/mod.rs:4:9
[INFO] [stdout] test grammar::implement::grammar_implement_test::operator_overwrite ... ok
[INFO] [stderr]   |
[INFO] [stdout] test grammar::implement::grammar_implement_test::no_left_recursion ... ok
[INFO] [stderr] 4 | pub use operator::*;
[INFO] [stdout] test grammar::implement::grammar_implement_test::follow_set ... ok
[INFO] [stderr]   |         ^^^^^^^^^^^
[INFO] [stdout] test grammar::implement::grammar_implement_test::will_product_epslion ... ok
[INFO] [stderr] 
[INFO] [stdout] test grammar::implement::grammar_implement_test::predictive_table ... ok
[INFO] [stderr] warning: unused import: `HashSet`
[INFO] [stdout] test grammar::implement::grammar_implement_test::terminal_and_nonterminal ... ok
[INFO] [stderr]  --> src/grammar/mod.rs:6:28
[INFO] [stderr]   |
[INFO] [stderr] 6 |     collections::{HashMap, HashSet},
[INFO] [stderr]   |                            ^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `implement::*`
[INFO] [stderr]  --> src/syntax/mod.rs:2:9
[INFO] [stderr]   |
[INFO] [stderr] 2 | pub use implement::*;
[INFO] [stderr]   |         ^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: the feature `derive_default_enum` has been stable since 1.62.0 and no longer requires an attribute to enable
[INFO] [stderr]  --> src/lib.rs:1:12
[INFO] [stderr]   |
[INFO] [stderr] 1 | #![feature(derive_default_enum)]
[INFO] [stderr]   |            ^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: `#[warn(stable_features)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unreachable expression
[INFO] [stderr]    --> src/grammar/implement.rs:118:9
[INFO] [stderr]     |
[INFO] [stderr] 117 |         todo!();
[INFO] [stderr]     |         ------- any code following this expression is unreachable
[INFO] [stderr] 118 |         s
[INFO] [stderr]     |         ^ unreachable expression
[INFO] [stderr]     |
[INFO] [stderr]     = note: `#[warn(unreachable_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `rayon::prelude`
[INFO] [stderr]  --> src/grammar/implement.rs:1:5
[INFO] [stderr]   |
[INFO] [stderr] 1 | use rayon::prelude::*;
[INFO] [stderr]   |     ^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: variable does not need to be mutable
[INFO] [stderr]    --> src/grammar/implement.rs:110:13
[INFO] [stderr]     |
[INFO] [stderr] 110 |         let mut s = G::new(State::NonTerminal(0));
[INFO] [stderr]     |             ----^
[INFO] [stderr]     |             |
[INFO] [stderr]     |             help: remove this `mut`
[INFO] [stderr]     |
[INFO] [stderr]     = note: `#[warn(unused_mut)]` (part of `#[warn(unused)]`) on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `s`
[INFO] [stderr]    --> src/grammar/implement.rs:110:13
[INFO] [stderr]     |
[INFO] [stderr] 110 |         let mut s = G::new(State::NonTerminal(0));
[INFO] [stderr]     |             ^^^^^ help: if this is intentional, prefix it with an underscore: `_s`
[INFO] [stderr]     |
[INFO] [stderr]     = note: `#[warn(unused_variables)]` (part of `#[warn(unused)]`) on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `map`
[INFO] [stderr]    --> src/grammar/implement.rs:111:13
[INFO] [stderr]     |
[INFO] [stderr] 111 |         let map: HashMap<&T, usize> = self
[INFO] [stderr]     |             ^^^ help: if this is intentional, prefix it with an underscore: `_map`
[INFO] [stderr] 
[INFO] [stderr] warning: struct `G` is never constructed
[INFO] [stderr]   --> src/grammar/mod.rs:11:12
[INFO] [stderr]    |
[INFO] [stderr] 11 | pub struct G<T>
[INFO] [stderr]    |            ^
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stderr] 
[INFO] [stderr] warning: struct `Product` is never constructed
[INFO] [stderr]   --> src/grammar/mod.rs:21:12
[INFO] [stderr]    |
[INFO] [stderr] 21 | pub struct Product<T>(Vec<T>)
[INFO] [stderr]    |            ^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: struct `Products` is never constructed
[INFO] [stderr]   --> src/grammar/mod.rs:28:12
[INFO] [stderr]    |
[INFO] [stderr] 28 | pub struct Products<T>(Vec<Product<T>>)
[INFO] [stderr]    |            ^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: trait `Symbols` is never used
[INFO] [stderr]   --> src/grammar/mod.rs:94:11
[INFO] [stderr]    |
[INFO] [stderr] 94 | pub trait Symbols {
[INFO] [stderr]    |           ^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: enum `EliminationLeftRecursion` is never used
[INFO] [stderr]   --> src/grammar/implement.rs:10:10
[INFO] [stderr]    |
[INFO] [stderr] 10 | pub enum EliminationLeftRecursion {
[INFO] [stderr]    |          ^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: enum `State` is never used
[INFO] [stderr]   --> src/grammar/implement.rs:16:10
[INFO] [stderr]    |
[INFO] [stderr] 16 | pub enum State {
[INFO] [stderr]    |          ^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: multiple associated items are never used
[INFO] [stderr]    --> src/grammar/implement.rs:50:12
[INFO] [stderr]     |
[INFO] [stderr]  46 | / impl<T> G<T>
[INFO] [stderr]  47 | | where
[INFO] [stderr]  48 | |     T: std::fmt::Debug + PartialEq + Hash + Eq + Symbols + Default + Clone,
[INFO] [stderr]     | |___________________________________________________________________________- associated items in this implementation
[INFO] [stderr]  49 |   {
[INFO] [stderr]  50 |       pub fn new(start: T) -> Self {
[INFO] [stderr]     |              ^^^
[INFO] [stderr] ...
[INFO] [stderr]  58 |       pub fn nonterminals(&self) -> Vec<&T> {
[INFO] [stderr]     |              ^^^^^^^^^^^^
[INFO] [stderr] ...
[INFO] [stderr]  62 |       pub fn is_left_recursion(&self) -> bool {
[INFO] [stderr]     |              ^^^^^^^^^^^^^^^^^
[INFO] [stderr] ...
[INFO] [stderr] 106 |       pub fn elimination_left_recursion(&self) -> G<State> {
[INFO] [stderr]     |              ^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] ...
[INFO] [stderr] 122 |       pub fn is_cycle(&self) -> bool {
[INFO] [stderr]     |              ^^^^^^^^
[INFO] [stderr] ...
[INFO] [stderr] 166 |       pub fn is_epsilon_product(&self) -> bool {
[INFO] [stderr]     |              ^^^^^^^^^^^^^^^^^^
[INFO] [stderr] ...
[INFO] [stderr] 175 |       pub fn first(&self, sign: T) -> HashSet<T> {
[INFO] [stderr]     |              ^^^^^
[INFO] [stderr] ...
[INFO] [stderr] 200 |       pub fn will_product_epslion(&self, sign: &T) -> bool {
[INFO] [stderr]     |              ^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] ...
[INFO] [stderr] 234 |       pub fn follow(&self, sign: T) -> HashSet<T> {
[INFO] [stderr]     |              ^^^^^^
[INFO] [stderr] ...
[INFO] [stderr] 282 |       pub fn generate_predictive_parsing(&self) -> HashMap<T, HashMap<T, (usize, usize)>> {
[INFO] [stderr]     |              ^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] ...
[INFO] [stderr] 323 |       fn check(&self, iter: &mut impl Iterator<Item = T>) -> Result<Vec<(usize, usize)>, String>
[INFO] [stderr]     |          ^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: `syntax` (lib) generated 17 warnings (run `cargo fix --lib -p syntax` to apply 7 suggestions)
[INFO] [stderr] warning: unused variable: `i`
[INFO] [stderr]    --> src/grammar/implement.rs:666:13
[INFO] [stderr]     |
[INFO] [stderr] 666 |         for i in &all_keys {
[INFO] [stderr]     |             ^
[INFO] [stderr]     |
[INFO] [stderr] help: you might have meant to pattern match on the similarly named variant `S`
[INFO] [stderr]     |
[INFO] [stderr] 666 -         for i in &all_keys {
[INFO] [stderr] 666 +         for grammar::implement::grammar_implement_test::home_work::Test::S in &all_keys {
[INFO] [stderr]     |
[INFO] [stderr] help: if this is intentional, prefix it with an underscore
[INFO] [stderr]     |
[INFO] [stderr] 666 |         for _i in &all_keys {
[INFO] [stderr]     |             +
[INFO] [stderr] 
[INFO] [stderr] warning: method `is_dollar` is never used
[INFO] [stderr]    --> src/grammar/mod.rs:101:8
[INFO] [stderr]     |
[INFO] [stderr]  94 | pub trait Symbols {
[INFO] [stderr]     |           ------- method in this trait
[INFO] [stderr] ...
[INFO] [stderr] 101 |     fn is_dollar(&self) -> bool;
[INFO] [stderr]     |        ^^^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stderr] 
[INFO] [stderr] warning: variant `Terminal` is never constructed
[INFO] [stderr]   --> src/grammar/implement.rs:21:5
[INFO] [stderr]    |
[INFO] [stderr] 16 | pub enum State {
[INFO] [stderr]    |          ----- variant in this enum
[INFO] [stderr] ...
[INFO] [stderr] 21 |     Terminal(usize),
[INFO] [stderr]    |     ^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: `State` has derived impls for the traits `Clone` and `Debug`, but these are intentionally ignored during dead code analysis
[INFO] [stderr] 
[INFO] [stderr] warning: `syntax` (lib test) generated 14 warnings (11 duplicates) (run `cargo fix --lib -p syntax --tests` to apply 1 suggestion)
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 0.07s
[INFO] [stderr]      Running unittests src/lib.rs (/opt/rustwide/target/debug/deps/syntax-26a70b87fb4e716a)
[INFO] [stderr]    Doc-tests syntax
[INFO] [stdout] test grammar::grammar_test::build_grammar ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 13 passed; 0 failed; 1 ignored; 0 measured; 0 filtered out; finished in 0.02s
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] running 0 tests
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 0 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.00s
[INFO] [stdout] 
[INFO] running `Command { std: "docker" "inspect" "2b2e9094beabdccd6f4f07d77b9705bcd55c21ea755bafbbf71881d69cc7c8e1", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "2b2e9094beabdccd6f4f07d77b9705bcd55c21ea755bafbbf71881d69cc7c8e1", kill_on_drop: false }`
[INFO] [stdout] 2b2e9094beabdccd6f4f07d77b9705bcd55c21ea755bafbbf71881d69cc7c8e1
