[INFO] fetching crate blunders-engine 0.1.0...
[INFO] checking blunders-engine-0.1.0 against master#ab869e094a907cc5d19b4080f22eccaf347f1f95 for pr-129604
[INFO] extracting crate blunders-engine 0.1.0 into /workspace/builds/worker-2-tc1/source
[INFO] validating manifest of crates.io crate blunders-engine 0.1.0 on toolchain ab869e094a907cc5d19b4080f22eccaf347f1f95
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+ab869e094a907cc5d19b4080f22eccaf347f1f95" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate blunders-engine 0.1.0
[INFO] finished tweaking crates.io crate blunders-engine 0.1.0
[INFO] tweaked toml for crates.io crate blunders-engine 0.1.0 written to /workspace/builds/worker-2-tc1/source/Cargo.toml
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+ab869e094a907cc5d19b4080f22eccaf347f1f95" "generate-lockfile" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr]      Locking 83 packages to latest compatible versions
[INFO] [stderr]       Adding bitflags v1.3.2 (latest: v2.6.0)
[INFO] [stderr]       Adding clap v2.34.0 (latest: v4.5.16)
[INFO] [stderr]       Adding criterion v0.3.6 (latest: v0.5.1)
[INFO] [stderr]       Adding criterion-plot v0.4.5 (latest: v0.5.0)
[INFO] [stderr]       Adding half v1.8.3 (latest: v2.4.1)
[INFO] [stderr]       Adding hermit-abi v0.1.19 (latest: v0.4.0)
[INFO] [stderr]       Adding hermit-abi v0.3.9 (latest: v0.4.0)
[INFO] [stderr]       Adding itertools v0.10.5 (latest: v0.13.0)
[INFO] [stderr]       Adding textwrap v0.11.0 (latest: v0.16.1)
[INFO] [stderr]       Adding wasi v0.11.0+wasi-snapshot-preview1 (latest: v0.13.2+wasi-0.2.1)
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+ab869e094a907cc5d19b4080f22eccaf347f1f95" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[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@sha256:923055f121b5182466d55868a8b05e67af8ba4a3a3f6bad814e953ca3cd3ac2a" "/opt/rustwide/cargo-home/bin/cargo" "+ab869e094a907cc5d19b4080f22eccaf347f1f95" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 697a9dec6c8c828af3eb06f2588b1f2fa7d5b493b39e25019dc96e8c26ca7e5d
[INFO] running `Command { std: "docker" "start" "-a" "697a9dec6c8c828af3eb06f2588b1f2fa7d5b493b39e25019dc96e8c26ca7e5d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "697a9dec6c8c828af3eb06f2588b1f2fa7d5b493b39e25019dc96e8c26ca7e5d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "697a9dec6c8c828af3eb06f2588b1f2fa7d5b493b39e25019dc96e8c26ca7e5d", kill_on_drop: false }`
[INFO] [stdout] 697a9dec6c8c828af3eb06f2588b1f2fa7d5b493b39e25019dc96e8c26ca7e5d
[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@sha256:923055f121b5182466d55868a8b05e67af8ba4a3a3f6bad814e953ca3cd3ac2a" "/opt/rustwide/cargo-home/bin/cargo" "+ab869e094a907cc5d19b4080f22eccaf347f1f95" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] f4ed370c24d6169d395cf8b10654bb9b2d5c7fe9009e4d7a0ed6f6978c0ddbdb
[INFO] running `Command { std: "docker" "start" "-a" "f4ed370c24d6169d395cf8b10654bb9b2d5c7fe9009e4d7a0ed6f6978c0ddbdb", kill_on_drop: false }`
[INFO] [stderr]    Compiling serde v1.0.209
[INFO] [stderr]    Compiling rayon-core v1.12.1
[INFO] [stderr]    Compiling num-traits v0.2.19
[INFO] [stderr]     Checking either v1.13.0
[INFO] [stderr]    Compiling syn v2.0.77
[INFO] [stderr]     Checking crossbeam-epoch v0.9.18
[INFO] [stderr]     Checking plotters-backend v0.3.6
[INFO] [stderr]     Checking unicode-width v0.1.13
[INFO] [stderr]     Checking regex-automata v0.4.7
[INFO] [stderr]     Checking textwrap v0.11.0
[INFO] [stderr]     Checking itertools v0.10.5
[INFO] [stderr]     Checking plotters-svg v0.3.6
[INFO] [stderr]     Checking crossbeam-deque v0.8.5
[INFO] [stderr]     Checking csv-core v0.1.11
[INFO] [stderr]     Checking half v1.8.3
[INFO] [stderr]     Checking walkdir v2.5.0
[INFO] [stderr]     Checking clap v2.34.0
[INFO] [stderr]     Checking atty v0.2.14
[INFO] [stderr]     Checking arrayvec v0.7.6
[INFO] [stderr]     Checking rayon v1.10.0
[INFO] [stderr]     Checking oorandom v11.1.4
[INFO] [stderr]     Checking lazy_static v1.5.0
[INFO] [stderr]     Checking criterion-plot v0.4.5
[INFO] [stderr]     Checking num_cpus v1.16.0
[INFO] [stderr]     Checking plotters v0.3.6
[INFO] [stderr]     Checking regex v1.10.6
[INFO] [stderr]     Checking serde_json v1.0.127
[INFO] [stderr]     Checking csv v1.3.0
[INFO] [stderr]     Checking serde_cbor v0.11.2
[INFO] [stderr]    Compiling zerocopy-derive v0.7.35
[INFO] [stderr]    Compiling serde_derive v1.0.209
[INFO] [stderr]     Checking tinytemplate v1.2.1
[INFO] [stderr]     Checking zerocopy v0.7.35
[INFO] [stderr]     Checking ppv-lite86 v0.2.20
[INFO] [stderr]     Checking rand_chacha v0.3.1
[INFO] [stderr]     Checking rand v0.8.5
[INFO] [stderr]     Checking blunders-engine v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Checking criterion v0.3.6
[INFO] [stdout] warning: fields `id` and `name` are never read
[INFO] [stdout]   --> src/threads.rs:34:9
[INFO] [stdout]    |
[INFO] [stdout] 33 | struct Thread {
[INFO] [stdout]    |        ------ fields in this struct
[INFO] [stdout] 34 |     pub id: usize,
[INFO] [stdout]    |         ^^
[INFO] [stdout] 35 |     pub name: String,
[INFO] [stdout]    |         ^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `Thread` has a derived impl for the trait `Debug`, 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 `threads` is never read
[INFO] [stdout]   --> src/threads.rs:96:5
[INFO] [stdout]    |
[INFO] [stdout] 94 | pub struct ThreadPool {
[INFO] [stdout]    |            ---------- field in this struct
[INFO] [stdout] 95 |     num_threads: usize,
[INFO] [stdout] 96 |     threads: Vec<Thread>,
[INFO] [stdout]    |     ^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `ThreadPool` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 2 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: fields `id` and `name` are never read
[INFO] [stdout]   --> src/threads.rs:34:9
[INFO] [stdout]    |
[INFO] [stdout] 33 | struct Thread {
[INFO] [stdout]    |        ------ fields in this struct
[INFO] [stdout] 34 |     pub id: usize,
[INFO] [stdout]    |         ^^
[INFO] [stdout] 35 |     pub name: String,
[INFO] [stdout]    |         ^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `Thread` has a derived impl for the trait `Debug`, 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 `threads` is never read
[INFO] [stdout]   --> src/threads.rs:96:5
[INFO] [stdout]    |
[INFO] [stdout] 94 | pub struct ThreadPool {
[INFO] [stdout]    |            ---------- field in this struct
[INFO] [stdout] 95 |     num_threads: usize,
[INFO] [stdout] 96 |     threads: Vec<Thread>,
[INFO] [stdout]    |     ^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `ThreadPool` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 2 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 27.78s
[INFO] running `Command { std: "docker" "inspect" "f4ed370c24d6169d395cf8b10654bb9b2d5c7fe9009e4d7a0ed6f6978c0ddbdb", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "f4ed370c24d6169d395cf8b10654bb9b2d5c7fe9009e4d7a0ed6f6978c0ddbdb", kill_on_drop: false }`
[INFO] [stdout] f4ed370c24d6169d395cf8b10654bb9b2d5c7fe9009e4d7a0ed6f6978c0ddbdb