[INFO] fetching crate my_threadpool 1.0.1...
[INFO] building my_threadpool-1.0.1 against master#ad85bc524b1ad696e42061ad8338d382dffbdbe5 for pr-146237-1
[INFO] extracting crate my_threadpool 1.0.1 into /workspace/builds/worker-2-tc1/source
[INFO] started tweaking crates.io crate my_threadpool 1.0.1
[INFO] finished tweaking crates.io crate my_threadpool 1.0.1
[INFO] tweaked toml for crates.io crate my_threadpool 1.0.1 written to /workspace/builds/worker-2-tc1/source/Cargo.toml
[INFO] validating manifest of crates.io crate my_threadpool 1.0.1 on toolchain ad85bc524b1ad696e42061ad8338d382dffbdbe5
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+ad85bc524b1ad696e42061ad8338d382dffbdbe5" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate crates.io crate my_threadpool 1.0.1 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" "+ad85bc524b1ad696e42061ad8338d382dffbdbe5" "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:e90291280db7d1fac5b66fc6dad9f9662629e7365a55743daf9bdf73ebc4ea79" "/opt/rustwide/cargo-home/bin/cargo" "+ad85bc524b1ad696e42061ad8338d382dffbdbe5" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 0afafeca63e575d236785a8179cc8e8db8611646b586b621e36cd2a7aab67bef
[INFO] running `Command { std: "docker" "start" "-a" "0afafeca63e575d236785a8179cc8e8db8611646b586b621e36cd2a7aab67bef", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "0afafeca63e575d236785a8179cc8e8db8611646b586b621e36cd2a7aab67bef", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "0afafeca63e575d236785a8179cc8e8db8611646b586b621e36cd2a7aab67bef", kill_on_drop: false }`
[INFO] [stdout] 0afafeca63e575d236785a8179cc8e8db8611646b586b621e36cd2a7aab67bef
[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:e90291280db7d1fac5b66fc6dad9f9662629e7365a55743daf9bdf73ebc4ea79" "/opt/rustwide/cargo-home/bin/cargo" "+ad85bc524b1ad696e42061ad8338d382dffbdbe5" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] dd301fa41a7ca5ac01e0e646c5ab883971b3c9aea5673ec7ea4526bb747f5337
[INFO] running `Command { std: "docker" "start" "-a" "dd301fa41a7ca5ac01e0e646c5ab883971b3c9aea5673ec7ea4526bb747f5337", kill_on_drop: false }`
[INFO] [stderr]    Compiling my_threadpool v1.0.1 (/opt/rustwide/workdir)
[INFO] [stdout] warning: found module declaration for lib.rs
[INFO] [stdout]  --> src/main.rs:1:1
[INFO] [stdout]   |
[INFO] [stdout] 1 | mod lib;
[INFO] [stdout]   | ^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: lib.rs is the root of this crate's library target
[INFO] [stdout]   = help: to refer to it from other targets, use the library's name as the path
[INFO] [stdout]   = note: `#[warn(special_module_name)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `pool`
[INFO] [stdout]  --> src/main.rs:6:9
[INFO] [stdout]   |
[INFO] [stdout] 6 |     let pool = ThreadPool::new(4);
[INFO] [stdout]   |         ^^^^ help: if this is intentional, prefix it with an underscore: `_pool`
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_variables)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant `Job` is never constructed
[INFO] [stdout]   --> src/lib.rs:21:5
[INFO] [stdout]    |
[INFO] [stdout] 19 | enum Message {
[INFO] [stdout]    |      ------- variant in this enum
[INFO] [stdout] 20 |     Terminate,
[INFO] [stdout] 21 |     Job(Job)
[INFO] [stdout]    |     ^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: method `execute` is never used
[INFO] [stdout]   --> src/lib.rs:83:12
[INFO] [stdout]    |
[INFO] [stdout] 24 | impl ThreadPool {
[INFO] [stdout]    | --------------- method in this implementation
[INFO] [stdout] ...
[INFO] [stdout] 83 |     pub fn execute<F: FnOnce() + Send + 'static>(&self, job: F) {
[INFO] [stdout]    |            ^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 0.76s
[INFO] running `Command { std: "docker" "inspect" "dd301fa41a7ca5ac01e0e646c5ab883971b3c9aea5673ec7ea4526bb747f5337", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "dd301fa41a7ca5ac01e0e646c5ab883971b3c9aea5673ec7ea4526bb747f5337", kill_on_drop: false }`
[INFO] [stdout] dd301fa41a7ca5ac01e0e646c5ab883971b3c9aea5673ec7ea4526bb747f5337
[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:e90291280db7d1fac5b66fc6dad9f9662629e7365a55743daf9bdf73ebc4ea79" "/opt/rustwide/cargo-home/bin/cargo" "+ad85bc524b1ad696e42061ad8338d382dffbdbe5" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] b6c71f8c88ac774671873a9260bd0aa0290c59ca1df2ba06dd5a5b7f1b38fd98
[INFO] running `Command { std: "docker" "start" "-a" "b6c71f8c88ac774671873a9260bd0aa0290c59ca1df2ba06dd5a5b7f1b38fd98", kill_on_drop: false }`
[INFO] [stderr]    Compiling my_threadpool v1.0.1 (/opt/rustwide/workdir)
[INFO] [stdout] warning: found module declaration for lib.rs
[INFO] [stdout]  --> src/main.rs:1:1
[INFO] [stdout]   |
[INFO] [stdout] 1 | mod lib;
[INFO] [stdout]   | ^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: lib.rs is the root of this crate's library target
[INFO] [stdout]   = help: to refer to it from other targets, use the library's name as the path
[INFO] [stdout]   = note: `#[warn(special_module_name)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `pool`
[INFO] [stdout]  --> src/main.rs:6:9
[INFO] [stdout]   |
[INFO] [stdout] 6 |     let pool = ThreadPool::new(4);
[INFO] [stdout]   |         ^^^^ help: if this is intentional, prefix it with an underscore: `_pool`
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_variables)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant `Job` is never constructed
[INFO] [stdout]   --> src/lib.rs:21:5
[INFO] [stdout]    |
[INFO] [stdout] 19 | enum Message {
[INFO] [stdout]    |      ------- variant in this enum
[INFO] [stdout] 20 |     Terminate,
[INFO] [stdout] 21 |     Job(Job)
[INFO] [stdout]    |     ^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: method `execute` is never used
[INFO] [stdout]   --> src/lib.rs:83:12
[INFO] [stdout]    |
[INFO] [stdout] 24 | impl ThreadPool {
[INFO] [stdout]    | --------------- method in this implementation
[INFO] [stdout] ...
[INFO] [stdout] 83 |     pub fn execute<F: FnOnce() + Send + 'static>(&self, job: F) {
[INFO] [stdout]    |            ^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 0.33s
[INFO] running `Command { std: "docker" "inspect" "b6c71f8c88ac774671873a9260bd0aa0290c59ca1df2ba06dd5a5b7f1b38fd98", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "b6c71f8c88ac774671873a9260bd0aa0290c59ca1df2ba06dd5a5b7f1b38fd98", kill_on_drop: false }`
[INFO] [stdout] b6c71f8c88ac774671873a9260bd0aa0290c59ca1df2ba06dd5a5b7f1b38fd98