[INFO] fetching crate tiny-earley 0.1.0...
[INFO] checking tiny-earley-0.1.0 against master#01706e1a34c87656fcbfce198608f4cd2ac6461a for pr-135272
[INFO] extracting crate tiny-earley 0.1.0 into /workspace/builds/worker-2-tc1/source
[INFO] validating manifest of crates.io crate tiny-earley 0.1.0 on toolchain 01706e1a34c87656fcbfce198608f4cd2ac6461a
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+01706e1a34c87656fcbfce198608f4cd2ac6461a" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate tiny-earley 0.1.0
[INFO] finished tweaking crates.io crate tiny-earley 0.1.0
[INFO] tweaked toml for crates.io crate tiny-earley 0.1.0 written to /workspace/builds/worker-2-tc1/source/Cargo.toml
[INFO] crate crates.io crate tiny-earley 0.1.0 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" "+01706e1a34c87656fcbfce198608f4cd2ac6461a" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded internship v0.6.0
[INFO] [stderr]   Downloaded c_lexer_logos v0.1.1
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc1/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@sha256:819108c5571ea2e421544af4d832f968d213c87fbe3707a016657f43d2f853bc" "/opt/rustwide/cargo-home/bin/cargo" "+01706e1a34c87656fcbfce198608f4cd2ac6461a" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] c779d92fb2ad13ff0188cbd404deee30d7520774244c0fde1251e7a6f87765a5
[INFO] running `Command { std: "docker" "start" "-a" "c779d92fb2ad13ff0188cbd404deee30d7520774244c0fde1251e7a6f87765a5", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "c779d92fb2ad13ff0188cbd404deee30d7520774244c0fde1251e7a6f87765a5", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "c779d92fb2ad13ff0188cbd404deee30d7520774244c0fde1251e7a6f87765a5", kill_on_drop: false }`
[INFO] [stdout] c779d92fb2ad13ff0188cbd404deee30d7520774244c0fde1251e7a6f87765a5
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc1/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@sha256:819108c5571ea2e421544af4d832f968d213c87fbe3707a016657f43d2f853bc" "/opt/rustwide/cargo-home/bin/cargo" "+01706e1a34c87656fcbfce198608f4cd2ac6461a" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] b444947e7d0ae971a12fe291dd0485b8f00d6e47f5de9a57e0d70c089f493a13
[INFO] running `Command { std: "docker" "start" "-a" "b444947e7d0ae971a12fe291dd0485b8f00d6e47f5de9a57e0d70c089f493a13", kill_on_drop: false }`
[INFO] [stderr]    Compiling proc-macro2 v1.0.85
[INFO] [stderr]    Compiling unicode-ident v1.0.12
[INFO] [stderr]    Compiling beef v0.5.2
[INFO] [stderr]    Compiling fnv v1.0.7
[INFO] [stderr]    Compiling regex-syntax v0.6.29
[INFO] [stderr]    Compiling serde v1.0.203
[INFO] [stderr]    Compiling quote v1.0.36
[INFO] [stderr]    Compiling syn v2.0.66
[INFO] [stderr]     Checking internship v0.6.0
[INFO] [stderr]    Compiling logos-codegen v0.13.0
[INFO] [stderr]    Compiling logos-derive v0.13.0
[INFO] [stderr]     Checking logos v0.13.0
[INFO] [stderr]     Checking c_lexer_logos v0.1.1
[INFO] [stderr]     Checking tiny-earley v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused import: `test::Bencher`
[INFO] [stdout]  --> lib.rs:8:5
[INFO] [stdout]   |
[INFO] [stdout] 8 | use test::Bencher;
[INFO] [stdout]   |     ^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused macro definition: `trace`
[INFO] [stdout]  --> bench_c.rs:6:14
[INFO] [stdout]   |
[INFO] [stdout] 6 | macro_rules! trace(($($tt:tt)*) => ());
[INFO] [stdout]   |              ^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_macros)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: crate-level attribute should be in the root module
[INFO] [stdout]  --> bench_c.rs:1:1
[INFO] [stdout]   |
[INFO] [stdout] 1 | #![feature(test)]
[INFO] [stdout]   | ^^^^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_attributes)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `rules`
[INFO] [stdout]    --> lib.rs:278:17
[INFO] [stdout]     |
[INFO] [stdout] 278 |         let mut rules = self.rules.clone();
[INFO] [stdout]     |                 ^^^^^ help: if this is intentional, prefix it with an underscore: `_rules`
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]    --> lib.rs:278:13
[INFO] [stdout]     |
[INFO] [stdout] 278 |         let mut rules = self.rules.clone();
[INFO] [stdout]     |             ----^^^^^
[INFO] [stdout]     |             |
[INFO] [stdout]     |             help: remove this `mut`
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_mut)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `rule`
[INFO] [stdout]    --> lib.rs:654:17
[INFO] [stdout]     |
[INFO] [stdout] 654 |         for (i, rule) in self.tables.rules.iter().enumerate() {
[INFO] [stdout]     |                 ^^^^ help: if this is intentional, prefix it with an underscore: `_rule`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `first`
[INFO] [stdout]    --> bench_c.rs:789:13
[INFO] [stdout]     |
[INFO] [stdout] 789 |     let mut first = true;
[INFO] [stdout]     |             ^^^^^ help: if this is intentional, prefix it with an underscore: `_first`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused macro definition: `trace`
[INFO] [stdout]  --> bench_c.rs:6:14
[INFO] [stdout]   |
[INFO] [stdout] 6 | macro_rules! trace(($($tt:tt)*) => ());
[INFO] [stdout]   |              ^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_macros)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]    --> bench_c.rs:789:9
[INFO] [stdout]     |
[INFO] [stdout] 789 |     let mut first = true;
[INFO] [stdout]     |         ----^^^^^
[INFO] [stdout]     |         |
[INFO] [stdout]     |         help: remove this `mut`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: type `CompletedItem` is more private than the item `forest::Forest::push_summand`
[INFO] [stdout]    --> forest.rs:111:5
[INFO] [stdout]     |
[INFO] [stdout] 111 |     pub fn push_summand(&mut self, item: CompletedItem) -> NodeHandle {
[INFO] [stdout]     |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ method `forest::Forest::push_summand` is reachable at visibility `pub`
[INFO] [stdout]     |
[INFO] [stdout] note: but type `CompletedItem` is only usable at visibility `pub(crate)`
[INFO] [stdout]    --> lib.rs:173:1
[INFO] [stdout]     |
[INFO] [stdout] 173 | struct CompletedItem {
[INFO] [stdout]     | ^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     = note: `#[warn(private_interfaces)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `rhs_nulling` is never read
[INFO] [stdout]   --> lib.rs:28:5
[INFO] [stdout]    |
[INFO] [stdout] 20 | pub struct Grammar<const S: usize> {
[INFO] [stdout]    |            ------- field in this struct
[INFO] [stdout] ...
[INFO] [stdout] 28 |     rhs_nulling: Vec<NullingEliminated>,
[INFO] [stdout]    |     ^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `Grammar` has a derived impl for the trait `Clone`, but this is intentionally ignored during dead code analysis
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variants `Left`, `Right`, and `Both` are never constructed
[INFO] [stdout]   --> lib.rs:33:5
[INFO] [stdout]    |
[INFO] [stdout] 32 | enum Side {
[INFO] [stdout]    |      ---- variants in this enum
[INFO] [stdout] 33 |     Left,
[INFO] [stdout]    |     ^^^^
[INFO] [stdout] 34 |     Right,
[INFO] [stdout]    |     ^^^^^
[INFO] [stdout] 35 |     Both,
[INFO] [stdout]    |     ^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `Side` has a derived impl for the trait `Clone`, but this is intentionally ignored during dead code analysis
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: fields `rule_id`, `sym`, and `side` are never read
[INFO] [stdout]   --> lib.rs:40:5
[INFO] [stdout]    |
[INFO] [stdout] 39 | struct NullingEliminated {
[INFO] [stdout]    |        ----------------- fields in this struct
[INFO] [stdout] 40 |     rule_id: Option<usize>,
[INFO] [stdout]    |     ^^^^^^^
[INFO] [stdout] 41 |     sym: Symbol,
[INFO] [stdout]    |     ^^^
[INFO] [stdout] 42 |     side: Side,
[INFO] [stdout]    |     ^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `NullingEliminated` has a derived impl for the trait `Clone`, but this is intentionally ignored during dead code analysis
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `symbol` is never read
[INFO] [stdout]   --> lib.rs:66:5
[INFO] [stdout]    |
[INFO] [stdout] 65 | struct PredictionTransition {
[INFO] [stdout]    |        -------------------- field in this struct
[INFO] [stdout] 66 |     symbol: Symbol,
[INFO] [stdout]    |     ^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `PredictionTransition` has derived impls for the traits `Default`, `Debug`, and `Clone`, but these are intentionally ignored during dead code analysis
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `EarleySet` is never constructed
[INFO] [stdout]    --> lib.rs:159:8
[INFO] [stdout]     |
[INFO] [stdout] 159 | struct EarleySet<const S: usize> {
[INFO] [stdout]     |        ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function `new` is never used
[INFO] [stdout]    --> lib.rs:207:8
[INFO] [stdout]     |
[INFO] [stdout] 206 | impl<const S: usize> EarleySet<S> {
[INFO] [stdout]     | --------------------------------- associated function in this implementation
[INFO] [stdout] 207 |     fn new() -> Self {
[INFO] [stdout]     |        ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: methods `rhs` and `eliminate_nulling` are never used
[INFO] [stdout]    --> lib.rs:267:8
[INFO] [stdout]     |
[INFO] [stdout] 215 | impl<const S: usize> Grammar<S> {
[INFO] [stdout]     | ------------------------------- methods in this implementation
[INFO] [stdout] ...
[INFO] [stdout] 267 |     fn rhs<const N: usize>(&mut self, rhs: [Symbol; N]) -> &mut Self {
[INFO] [stdout]     |        ^^^
[INFO] [stdout] ...
[INFO] [stdout] 276 |     fn eliminate_nulling(&mut self) {
[INFO] [stdout]     |        ^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `grammar` is never used
[INFO] [stdout]   --> bench_c.rs:32:4
[INFO] [stdout]    |
[INFO] [stdout] 32 | fn grammar() -> Grammar<176> {
[INFO] [stdout]    |    ^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `make_tokens` is never used
[INFO] [stdout]    --> bench_c.rs:663:4
[INFO] [stdout]     |
[INFO] [stdout] 663 | fn make_tokens(contents: &str, external: &Grammar<176>) -> Vec<Symbol> {
[INFO] [stdout]     |    ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `bench_parse_c` is never used
[INFO] [stdout]    --> bench_c.rs:786:4
[INFO] [stdout]     |
[INFO] [stdout] 786 | fn bench_parse_c(b: &mut test::Bencher, contents: &str) {
[INFO] [stdout]     |    ^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: crate-level attribute should be in the root module
[INFO] [stdout]  --> bench_c.rs:1:1
[INFO] [stdout]   |
[INFO] [stdout] 1 | #![feature(test)]
[INFO] [stdout]   | ^^^^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_attributes)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `rules`
[INFO] [stdout]    --> lib.rs:278:17
[INFO] [stdout]     |
[INFO] [stdout] 278 |         let mut rules = self.rules.clone();
[INFO] [stdout]     |                 ^^^^^ help: if this is intentional, prefix it with an underscore: `_rules`
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]    --> lib.rs:278:13
[INFO] [stdout]     |
[INFO] [stdout] 278 |         let mut rules = self.rules.clone();
[INFO] [stdout]     |             ----^^^^^
[INFO] [stdout]     |             |
[INFO] [stdout]     |             help: remove this `mut`
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_mut)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `rule`
[INFO] [stdout]    --> lib.rs:654:17
[INFO] [stdout]     |
[INFO] [stdout] 654 |         for (i, rule) in self.tables.rules.iter().enumerate() {
[INFO] [stdout]     |                 ^^^^ help: if this is intentional, prefix it with an underscore: `_rule`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `first`
[INFO] [stdout]    --> bench_c.rs:789:13
[INFO] [stdout]     |
[INFO] [stdout] 789 |     let mut first = true;
[INFO] [stdout]     |             ^^^^^ help: if this is intentional, prefix it with an underscore: `_first`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]    --> bench_c.rs:789:9
[INFO] [stdout]     |
[INFO] [stdout] 789 |     let mut first = true;
[INFO] [stdout]     |         ----^^^^^
[INFO] [stdout]     |         |
[INFO] [stdout]     |         help: remove this `mut`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: type `CompletedItem` is more private than the item `forest::Forest::push_summand`
[INFO] [stdout]    --> forest.rs:111:5
[INFO] [stdout]     |
[INFO] [stdout] 111 |     pub fn push_summand(&mut self, item: CompletedItem) -> NodeHandle {
[INFO] [stdout]     |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ method `forest::Forest::push_summand` is reachable at visibility `pub`
[INFO] [stdout]     |
[INFO] [stdout] note: but type `CompletedItem` is only usable at visibility `pub(crate)`
[INFO] [stdout]    --> lib.rs:173:1
[INFO] [stdout]     |
[INFO] [stdout] 173 | struct CompletedItem {
[INFO] [stdout]     | ^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     = note: `#[warn(private_interfaces)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: fields `rule_id`, `sym`, and `side` are never read
[INFO] [stdout]   --> lib.rs:40:5
[INFO] [stdout]    |
[INFO] [stdout] 39 | struct NullingEliminated {
[INFO] [stdout]    |        ----------------- fields in this struct
[INFO] [stdout] 40 |     rule_id: Option<usize>,
[INFO] [stdout]    |     ^^^^^^^
[INFO] [stdout] 41 |     sym: Symbol,
[INFO] [stdout]    |     ^^^
[INFO] [stdout] 42 |     side: Side,
[INFO] [stdout]    |     ^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `NullingEliminated` has a derived impl for the trait `Clone`, but this is intentionally ignored during dead code analysis
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `symbol` is never read
[INFO] [stdout]   --> lib.rs:66:5
[INFO] [stdout]    |
[INFO] [stdout] 65 | struct PredictionTransition {
[INFO] [stdout]    |        -------------------- field in this struct
[INFO] [stdout] 66 |     symbol: Symbol,
[INFO] [stdout]    |     ^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `PredictionTransition` has derived impls for the traits `Default`, `Debug`, and `Clone`, but these are intentionally ignored during dead code analysis
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `EarleySet` is never constructed
[INFO] [stdout]    --> lib.rs:159:8
[INFO] [stdout]     |
[INFO] [stdout] 159 | struct EarleySet<const S: usize> {
[INFO] [stdout]     |        ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function `new` is never used
[INFO] [stdout]    --> lib.rs:207:8
[INFO] [stdout]     |
[INFO] [stdout] 206 | impl<const S: usize> EarleySet<S> {
[INFO] [stdout]     | --------------------------------- associated function in this implementation
[INFO] [stdout] 207 |     fn new() -> Self {
[INFO] [stdout]     |        ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 12.53s
[INFO] running `Command { std: "docker" "inspect" "b444947e7d0ae971a12fe291dd0485b8f00d6e47f5de9a57e0d70c089f493a13", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "b444947e7d0ae971a12fe291dd0485b8f00d6e47f5de9a57e0d70c089f493a13", kill_on_drop: false }`
[INFO] [stdout] b444947e7d0ae971a12fe291dd0485b8f00d6e47f5de9a57e0d70c089f493a13
