[INFO] fetching crate thread_pool_pre 0.1.0...
[INFO] checking thread_pool_pre-0.1.0 against try#c659ee110de67e82444e4b6c8407c1a9af9c2cf6 for pr-145608-1
[INFO] extracting crate thread_pool_pre 0.1.0 into /workspace/builds/worker-1-tc2/source
[INFO] started tweaking crates.io crate thread_pool_pre 0.1.0
[INFO] finished tweaking crates.io crate thread_pool_pre 0.1.0
[INFO] tweaked toml for crates.io crate thread_pool_pre 0.1.0 written to /workspace/builds/worker-1-tc2/source/Cargo.toml
[INFO] validating manifest of crates.io crate thread_pool_pre 0.1.0 on toolchain c659ee110de67e82444e4b6c8407c1a9af9c2cf6
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+c659ee110de67e82444e4b6c8407c1a9af9c2cf6" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate crates.io crate thread_pool_pre 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" "+c659ee110de67e82444e4b6c8407c1a9af9c2cf6" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-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@sha256:7ad1b28ee6f5f7f699f6cf7015098d6ccdd96d6f2d78dd06228f5b4c9faf309c" "/opt/rustwide/cargo-home/bin/cargo" "+c659ee110de67e82444e4b6c8407c1a9af9c2cf6" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 6e64db7eeee8d2673b7dd137a53c5ef8be58d0af3c5c66e005a2a70311031f2e
[INFO] running `Command { std: "docker" "start" "-a" "6e64db7eeee8d2673b7dd137a53c5ef8be58d0af3c5c66e005a2a70311031f2e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "6e64db7eeee8d2673b7dd137a53c5ef8be58d0af3c5c66e005a2a70311031f2e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "6e64db7eeee8d2673b7dd137a53c5ef8be58d0af3c5c66e005a2a70311031f2e", kill_on_drop: false }`
[INFO] [stdout] 6e64db7eeee8d2673b7dd137a53c5ef8be58d0af3c5c66e005a2a70311031f2e
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-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@sha256:7ad1b28ee6f5f7f699f6cf7015098d6ccdd96d6f2d78dd06228f5b4c9faf309c" "/opt/rustwide/cargo-home/bin/cargo" "+c659ee110de67e82444e4b6c8407c1a9af9c2cf6" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] d1ce76000eea36578db1bd1d3e88e7826fed4b961a24c19db7f887e0b3a6a5da
[INFO] running `Command { std: "docker" "start" "-a" "d1ce76000eea36578db1bd1d3e88e7826fed4b961a24c19db7f887e0b3a6a5da", kill_on_drop: false }`
[INFO] [stderr]     Checking thread_pool_pre v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: field `workers` is never read
[INFO] [stdout]   --> src/lib.rs:15:5
[INFO] [stdout]    |
[INFO] [stdout] 14 | pub struct ThreadPool{
[INFO] [stdout]    |            ---------- field in this struct
[INFO] [stdout] 15 |     workers: Vec<Worker>,
[INFO] [stdout]    |     ^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: fields `id` and `thread` are never read
[INFO] [stdout]   --> src/lib.rs:40:5
[INFO] [stdout]    |
[INFO] [stdout] 39 | struct Worker{
[INFO] [stdout]    |        ------ fields in this struct
[INFO] [stdout] 40 |     id: usize,
[INFO] [stdout]    |     ^^
[INFO] [stdout] 41 |     thread: thread::JoinHandle<()>,
[INFO] [stdout]    |     ^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `workers` is never read
[INFO] [stdout]   --> src/lib.rs:15:5
[INFO] [stdout]    |
[INFO] [stdout] 14 | pub struct ThreadPool{
[INFO] [stdout]    |            ---------- field in this struct
[INFO] [stdout] 15 |     workers: Vec<Worker>,
[INFO] [stdout]    |     ^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: fields `id` and `thread` are never read
[INFO] [stdout]   --> src/lib.rs:40:5
[INFO] [stdout]    |
[INFO] [stdout] 39 | struct Worker{
[INFO] [stdout]    |        ------ fields in this struct
[INFO] [stdout] 40 |     id: usize,
[INFO] [stdout]    |     ^^
[INFO] [stdout] 41 |     thread: thread::JoinHandle<()>,
[INFO] [stdout]    |     ^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 0.44s
[INFO] running `Command { std: "docker" "inspect" "d1ce76000eea36578db1bd1d3e88e7826fed4b961a24c19db7f887e0b3a6a5da", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "d1ce76000eea36578db1bd1d3e88e7826fed4b961a24c19db7f887e0b3a6a5da", kill_on_drop: false }`
[INFO] [stdout] d1ce76000eea36578db1bd1d3e88e7826fed4b961a24c19db7f887e0b3a6a5da