[INFO] fetching crate cfgc 0.1.1...
[INFO] checking cfgc-0.1.1 against master#350d0ef0ec0493e6d21cfb265cb8211a0e74d766 for pr-145342-1
[INFO] extracting crate cfgc 0.1.1 into /workspace/builds/worker-1-tc1/source
[INFO] started tweaking crates.io crate cfgc 0.1.1
[INFO] finished tweaking crates.io crate cfgc 0.1.1
[INFO] tweaked toml for crates.io crate cfgc 0.1.1 written to /workspace/builds/worker-1-tc1/source/Cargo.toml
[INFO] validating manifest of crates.io crate cfgc 0.1.1 on toolchain 350d0ef0ec0493e6d21cfb265cb8211a0e74d766
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+350d0ef0ec0493e6d21cfb265cb8211a0e74d766" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate crates.io crate cfgc 0.1.1 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" "+350d0ef0ec0493e6d21cfb265cb8211a0e74d766" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-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@sha256:7ad1b28ee6f5f7f699f6cf7015098d6ccdd96d6f2d78dd06228f5b4c9faf309c" "/opt/rustwide/cargo-home/bin/cargo" "+350d0ef0ec0493e6d21cfb265cb8211a0e74d766" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 74a4664d5e1c676d05e4c484db8d90c2a2abec29441ffd18fc365d9954a23e46
[INFO] running `Command { std: "docker" "start" "-a" "74a4664d5e1c676d05e4c484db8d90c2a2abec29441ffd18fc365d9954a23e46", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "74a4664d5e1c676d05e4c484db8d90c2a2abec29441ffd18fc365d9954a23e46", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "74a4664d5e1c676d05e4c484db8d90c2a2abec29441ffd18fc365d9954a23e46", kill_on_drop: false }`
[INFO] [stdout] 74a4664d5e1c676d05e4c484db8d90c2a2abec29441ffd18fc365d9954a23e46
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-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@sha256:7ad1b28ee6f5f7f699f6cf7015098d6ccdd96d6f2d78dd06228f5b4c9faf309c" "/opt/rustwide/cargo-home/bin/cargo" "+350d0ef0ec0493e6d21cfb265cb8211a0e74d766" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 100ac2ae3bb88800e46ff68362cba4f0ced55486cdb7cbf32bc017c789939750
[INFO] running `Command { std: "docker" "start" "-a" "100ac2ae3bb88800e46ff68362cba4f0ced55486cdb7cbf32bc017c789939750", kill_on_drop: false }`
[INFO] [stderr]    Compiling proc-macro2 v1.0.95
[INFO] [stderr]    Compiling unicode-ident v1.0.18
[INFO] [stderr]     Checking utf8parse v0.2.2
[INFO] [stderr]     Checking anstyle v1.0.11
[INFO] [stderr]     Checking is_terminal_polyfill v1.70.1
[INFO] [stderr]     Checking anstyle-query v1.1.3
[INFO] [stderr]     Checking colorchoice v1.0.4
[INFO] [stderr]     Checking clap_lex v0.7.5
[INFO] [stderr]     Checking strsim v0.11.1
[INFO] [stderr]    Compiling heck v0.5.0
[INFO] [stderr]     Checking anstyle-parse v0.2.7
[INFO] [stderr]     Checking anstream v0.6.19
[INFO] [stderr]     Checking clap_builder v4.5.41
[INFO] [stderr]    Compiling quote v1.0.40
[INFO] [stderr]    Compiling syn v2.0.104
[INFO] [stderr]    Compiling clap_derive v4.5.41
[INFO] [stderr]     Checking clap v4.5.41
[INFO] [stderr]     Checking cfgc v0.1.1 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused imports: `panic::RefUnwindSafe`, `sync::Arc`, and `time::Duration`
[INFO] [stdout]  --> src/main.rs:1:23
[INFO] [stdout]   |
[INFO] [stdout] 1 | use std::{fmt::Debug, panic::RefUnwindSafe, process::exit, sync::Arc, time::Duration};
[INFO] [stdout]   |                       ^^^^^^^^^^^^^^^^^^^^                 ^^^^^^^^^  ^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused imports: `CheckDiff`, `Definition`, `Grammar`, `Language`, `Rule`, `Token`, and `Var`
[INFO] [stdout]  --> src/main.rs:4:15
[INFO] [stdout]   |
[INFO] [stdout] 4 |     checker::{CheckDiff, Checker, by_generation::BoundedGeneratorChecker},
[INFO] [stdout]   |               ^^^^^^^^^
[INFO] [stdout] 5 |     generator::{Bounded, by_len},
[INFO] [stdout] 6 |     grammar::{Definition, Grammar, Language, Rule, StringLanguage, Token, Var},
[INFO] [stdout]   |               ^^^^^^^^^^  ^^^^^^^  ^^^^^^^^  ^^^^                  ^^^^^  ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `LiteralString`
[INFO] [stdout]  --> src/checker.rs:3:34
[INFO] [stdout]   |
[INFO] [stdout] 3 |     grammar::{Grammar, Language, LiteralString},
[INFO] [stdout]   |                                  ^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `Grammar`
[INFO] [stdout]  --> src/tokenizer.rs:5:22
[INFO] [stdout]   |
[INFO] [stdout] 5 | use crate::grammar::{Grammar, Language, Literal, LiteralString, Rule, Token, Var};
[INFO] [stdout]   |                      ^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused imports: `panic::RefUnwindSafe`, `sync::Arc`, and `time::Duration`
[INFO] [stdout]  --> src/main.rs:1:23
[INFO] [stdout]   |
[INFO] [stdout] 1 | use std::{fmt::Debug, panic::RefUnwindSafe, process::exit, sync::Arc, time::Duration};
[INFO] [stdout]   |                       ^^^^^^^^^^^^^^^^^^^^                 ^^^^^^^^^  ^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused imports: `CheckDiff`, `Definition`, `Grammar`, `Language`, `Rule`, `Token`, and `Var`
[INFO] [stdout]  --> src/main.rs:4:15
[INFO] [stdout]   |
[INFO] [stdout] 4 |     checker::{CheckDiff, Checker, by_generation::BoundedGeneratorChecker},
[INFO] [stdout]   |               ^^^^^^^^^
[INFO] [stdout] 5 |     generator::{Bounded, by_len},
[INFO] [stdout] 6 |     grammar::{Definition, Grammar, Language, Rule, StringLanguage, Token, Var},
[INFO] [stdout]   |               ^^^^^^^^^^  ^^^^^^^  ^^^^^^^^  ^^^^                  ^^^^^  ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `LiteralString`
[INFO] [stdout]  --> src/checker.rs:3:34
[INFO] [stdout]   |
[INFO] [stdout] 3 |     grammar::{Grammar, Language, LiteralString},
[INFO] [stdout]   |                                  ^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `Grammar`
[INFO] [stdout]  --> src/tokenizer.rs:5:22
[INFO] [stdout]   |
[INFO] [stdout] 5 | use crate::grammar::{Grammar, Language, Literal, LiteralString, Rule, Token, Var};
[INFO] [stdout]   |                      ^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `mode`
[INFO] [stdout]    --> src/main.rs:109:56
[INFO] [stdout]     |
[INFO] [stdout] 109 | fn check(grammar_file1: String, grammar_file2: String, mode: CheckMode, limit: usize) {
[INFO] [stdout]     |                                                        ^^^^ help: if this is intentional, prefix it with an underscore: `_mode`
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `mode`
[INFO] [stdout]    --> src/main.rs:167:34
[INFO] [stdout]     |
[INFO] [stdout] 167 | fn justify(grammar_file: String, mode: CheckMode, limit: usize) {
[INFO] [stdout]     |                                  ^^^^ help: if this is intentional, prefix it with an underscore: `_mode`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: method `bounds` is never used
[INFO] [stdout]   --> src/generator.rs:16:8
[INFO] [stdout]    |
[INFO] [stdout]  8 | pub trait Bounded {
[INFO] [stdout]    |           ------- method in this trait
[INFO] [stdout] ...
[INFO] [stdout] 16 |     fn bounds(&self) -> Self::Bounds;
[INFO] [stdout]    |        ^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: method `lazy_strings` is never used
[INFO] [stdout]   --> src/generator.rs:33:8
[INFO] [stdout]    |
[INFO] [stdout] 19 | pub trait LazyGenerator {
[INFO] [stdout]    |           ------------- method in this trait
[INFO] [stdout] ...
[INFO] [stdout] 33 |     fn lazy_strings(&self, grammar: &Grammar) -> impl std::iter::Iterator<Item = String> {
[INFO] [stdout]    |        ^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: method `strings` is never used
[INFO] [stdout]   --> src/generator.rs:50:8
[INFO] [stdout]    |
[INFO] [stdout] 39 | pub trait Generator {
[INFO] [stdout]    |           --------- method in this trait
[INFO] [stdout] ...
[INFO] [stdout] 50 |     fn strings(&self, grammar: &Grammar) -> StringLanguage {
[INFO] [stdout]    |        ^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function `from_strings` is never used
[INFO] [stdout]   --> src/grammar.rs:43:12
[INFO] [stdout]    |
[INFO] [stdout] 28 | impl StringLanguage {
[INFO] [stdout]    | ------------------- associated function in this implementation
[INFO] [stdout] ...
[INFO] [stdout] 43 |     pub fn from_strings<S: Into<String>, I: IntoIterator<Item = S>>(strings: I) -> Self {
[INFO] [stdout]    |            ^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: method `append` is never used
[INFO] [stdout]   --> src/parser.rs:31:8
[INFO] [stdout]    |
[INFO] [stdout] 16 | impl ParseError {
[INFO] [stdout]    | --------------- method in this implementation
[INFO] [stdout] ...
[INFO] [stdout] 31 |     fn append<S: Into<String>>(self, message: S) -> Self {
[INFO] [stdout]    |        ^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `mode`
[INFO] [stdout]    --> src/main.rs:109:56
[INFO] [stdout]     |
[INFO] [stdout] 109 | fn check(grammar_file1: String, grammar_file2: String, mode: CheckMode, limit: usize) {
[INFO] [stdout]     |                                                        ^^^^ help: if this is intentional, prefix it with an underscore: `_mode`
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `mode`
[INFO] [stdout]    --> src/main.rs:167:34
[INFO] [stdout]     |
[INFO] [stdout] 167 | fn justify(grammar_file: String, mode: CheckMode, limit: usize) {
[INFO] [stdout]     |                                  ^^^^ help: if this is intentional, prefix it with an underscore: `_mode`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: method `bounds` is never used
[INFO] [stdout]   --> src/generator.rs:16:8
[INFO] [stdout]    |
[INFO] [stdout]  8 | pub trait Bounded {
[INFO] [stdout]    |           ------- method in this trait
[INFO] [stdout] ...
[INFO] [stdout] 16 |     fn bounds(&self) -> Self::Bounds;
[INFO] [stdout]    |        ^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: method `lazy_strings` is never used
[INFO] [stdout]   --> src/generator.rs:33:8
[INFO] [stdout]    |
[INFO] [stdout] 19 | pub trait LazyGenerator {
[INFO] [stdout]    |           ------------- method in this trait
[INFO] [stdout] ...
[INFO] [stdout] 33 |     fn lazy_strings(&self, grammar: &Grammar) -> impl std::iter::Iterator<Item = String> {
[INFO] [stdout]    |        ^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: method `append` is never used
[INFO] [stdout]   --> src/parser.rs:31:8
[INFO] [stdout]    |
[INFO] [stdout] 16 | impl ParseError {
[INFO] [stdout]    | --------------- method in this implementation
[INFO] [stdout] ...
[INFO] [stdout] 31 |     fn append<S: Into<String>>(self, message: S) -> Self {
[INFO] [stdout]    |        ^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 7.32s
[INFO] running `Command { std: "docker" "inspect" "100ac2ae3bb88800e46ff68362cba4f0ced55486cdb7cbf32bc017c789939750", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "100ac2ae3bb88800e46ff68362cba4f0ced55486cdb7cbf32bc017c789939750", kill_on_drop: false }`
[INFO] [stdout] 100ac2ae3bb88800e46ff68362cba4f0ced55486cdb7cbf32bc017c789939750