[INFO] fetching crate simple_threadpool_func_bio 0.0.1...
[INFO] testing simple_threadpool_func_bio-0.0.1 against try#b6ae10aa7319b7ebb6c7b3331dd71a9d6c9c5b4b for pr-145330-1
[INFO] extracting crate simple_threadpool_func_bio 0.0.1 into /workspace/builds/worker-2-tc2/source
[INFO] started tweaking crates.io crate simple_threadpool_func_bio 0.0.1
[INFO] finished tweaking crates.io crate simple_threadpool_func_bio 0.0.1
[INFO] tweaked toml for crates.io crate simple_threadpool_func_bio 0.0.1 written to /workspace/builds/worker-2-tc2/source/Cargo.toml
[INFO] validating manifest of crates.io crate simple_threadpool_func_bio 0.0.1 on toolchain b6ae10aa7319b7ebb6c7b3331dd71a9d6c9c5b4b
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+b6ae10aa7319b7ebb6c7b3331dd71a9d6c9c5b4b" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate crates.io crate simple_threadpool_func_bio 0.0.1 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" "+b6ae10aa7319b7ebb6c7b3331dd71a9d6c9c5b4b" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-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:e90291280db7d1fac5b66fc6dad9f9662629e7365a55743daf9bdf73ebc4ea79" "/opt/rustwide/cargo-home/bin/cargo" "+b6ae10aa7319b7ebb6c7b3331dd71a9d6c9c5b4b" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] be9d6491a30f3ad34950f5bf7a8734b0ad126ffb72dd876d66609527fa8a592c
[INFO] running `Command { std: "docker" "start" "-a" "be9d6491a30f3ad34950f5bf7a8734b0ad126ffb72dd876d66609527fa8a592c", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "be9d6491a30f3ad34950f5bf7a8734b0ad126ffb72dd876d66609527fa8a592c", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "be9d6491a30f3ad34950f5bf7a8734b0ad126ffb72dd876d66609527fa8a592c", kill_on_drop: false }`
[INFO] [stdout] be9d6491a30f3ad34950f5bf7a8734b0ad126ffb72dd876d66609527fa8a592c
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-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:e90291280db7d1fac5b66fc6dad9f9662629e7365a55743daf9bdf73ebc4ea79" "/opt/rustwide/cargo-home/bin/cargo" "+b6ae10aa7319b7ebb6c7b3331dd71a9d6c9c5b4b" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 9d8d1e269f29078ade5d30db09603bd2b179f057325cd8cf00a9af0306b3c55a
[INFO] running `Command { std: "docker" "start" "-a" "9d8d1e269f29078ade5d30db09603bd2b179f057325cd8cf00a9af0306b3c55a", kill_on_drop: false }`
[INFO] [stderr]    Compiling simple_threadpool_func_bio v0.0.1 (/opt/rustwide/workdir)
[INFO] [stdout] warning: field `workers` is never read
[INFO] [stdout]  --> src/simple_threadpool_func.rs:8:5
[INFO] [stdout]   |
[INFO] [stdout] 7 | pub struct ThreadPool {
[INFO] [stdout]   |            ---------- field in this struct
[INFO] [stdout] 8 |     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/simple_threadpool_func.rs:13:5
[INFO] [stdout]    |
[INFO] [stdout] 12 | struct Worker {
[INFO] [stdout]    |        ------ fields in this struct
[INFO] [stdout] 13 |     id: usize,
[INFO] [stdout]    |     ^^
[INFO] [stdout] 14 |     thread: thread::JoinHandle<()>,
[INFO] [stdout]    |     ^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 0.71s
[INFO] running `Command { std: "docker" "inspect" "9d8d1e269f29078ade5d30db09603bd2b179f057325cd8cf00a9af0306b3c55a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "9d8d1e269f29078ade5d30db09603bd2b179f057325cd8cf00a9af0306b3c55a", kill_on_drop: false }`
[INFO] [stdout] 9d8d1e269f29078ade5d30db09603bd2b179f057325cd8cf00a9af0306b3c55a
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-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:e90291280db7d1fac5b66fc6dad9f9662629e7365a55743daf9bdf73ebc4ea79" "/opt/rustwide/cargo-home/bin/cargo" "+b6ae10aa7319b7ebb6c7b3331dd71a9d6c9c5b4b" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 4cbc194bc3e7e7d766a580dbb6844a74be7fe54ccfe44ee66e0b551baae5a0d1
[INFO] running `Command { std: "docker" "start" "-a" "4cbc194bc3e7e7d766a580dbb6844a74be7fe54ccfe44ee66e0b551baae5a0d1", kill_on_drop: false }`
[INFO] [stdout] warning: field `workers` is never read
[INFO] [stdout]  --> src/simple_threadpool_func.rs:8:5
[INFO] [stdout]   |
[INFO] [stdout] 7 | pub struct ThreadPool {
[INFO] [stdout]   |            ---------- field in this struct
[INFO] [stdout] 8 |     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/simple_threadpool_func.rs:13:5
[INFO] [stdout]    |
[INFO] [stdout] 12 | struct Worker {
[INFO] [stdout]    |        ------ fields in this struct
[INFO] [stdout] 13 |     id: usize,
[INFO] [stdout]    |     ^^
[INFO] [stdout] 14 |     thread: thread::JoinHandle<()>,
[INFO] [stdout]    |     ^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]    Compiling simple_threadpool_func_bio v0.0.1 (/opt/rustwide/workdir)
[INFO] [stdout] warning: field `workers` is never read
[INFO] [stdout]  --> src/simple_threadpool_func.rs:8:5
[INFO] [stdout]   |
[INFO] [stdout] 7 | pub struct ThreadPool {
[INFO] [stdout]   |            ---------- field in this struct
[INFO] [stdout] 8 |     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/simple_threadpool_func.rs:13:5
[INFO] [stdout]    |
[INFO] [stdout] 12 | struct Worker {
[INFO] [stdout]    |        ------ fields in this struct
[INFO] [stdout] 13 |     id: usize,
[INFO] [stdout]    |     ^^
[INFO] [stdout] 14 |     thread: thread::JoinHandle<()>,
[INFO] [stdout]    |     ^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 0.47s
[INFO] running `Command { std: "docker" "inspect" "4cbc194bc3e7e7d766a580dbb6844a74be7fe54ccfe44ee66e0b551baae5a0d1", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "4cbc194bc3e7e7d766a580dbb6844a74be7fe54ccfe44ee66e0b551baae5a0d1", kill_on_drop: false }`
[INFO] [stdout] 4cbc194bc3e7e7d766a580dbb6844a74be7fe54ccfe44ee66e0b551baae5a0d1
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-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:e90291280db7d1fac5b66fc6dad9f9662629e7365a55743daf9bdf73ebc4ea79" "/opt/rustwide/cargo-home/bin/cargo" "+b6ae10aa7319b7ebb6c7b3331dd71a9d6c9c5b4b" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] 559aa19d58872a1d320a280b19ae708b79ff8d0e0b241dc85eec2903f8012ce6
[INFO] running `Command { std: "docker" "start" "-a" "559aa19d58872a1d320a280b19ae708b79ff8d0e0b241dc85eec2903f8012ce6", kill_on_drop: false }`
[INFO] [stderr] warning: field `workers` is never read
[INFO] [stderr]  --> src/simple_threadpool_func.rs:8:5
[INFO] [stderr]   |
[INFO] [stderr] 7 | pub struct ThreadPool {
[INFO] [stderr]   |            ---------- field in this struct
[INFO] [stderr] 8 |     workers: Vec<Worker>,
[INFO] [stderr]   |     ^^^^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stderr] 
[INFO] [stdout] running 0 tests
[INFO] [stderr] warning: fields `id` and `thread` are never read
[INFO] [stdout] 
[INFO] [stderr]   --> src/simple_threadpool_func.rs:13:5
[INFO] [stdout] test result: ok. 0 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.00s
[INFO] [stderr]    |
[INFO] [stdout] 
[INFO] [stderr] 12 | struct Worker {
[INFO] [stderr]    |        ------ fields in this struct
[INFO] [stderr] 13 |     id: usize,
[INFO] [stderr]    |     ^^
[INFO] [stderr] 14 |     thread: thread::JoinHandle<()>,
[INFO] [stderr]    |     ^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: `simple_threadpool_func_bio` (lib) generated 2 warnings
[INFO] [stderr] warning: `simple_threadpool_func_bio` (lib test) generated 2 warnings (2 duplicates)
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 0.02s
[INFO] [stderr]      Running unittests src/lib.rs (/opt/rustwide/target/debug/deps/simple_threadpool_func_bio-25aee44a58c7eae2)
[INFO] [stderr]      Running unittests src/main.rs (/opt/rustwide/target/debug/deps/simple_threadpool_func_bio-0f15f2dc77152a97)
[INFO] [stdout] 
[INFO] [stdout] running 0 tests
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 0 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.00s
[INFO] [stdout] 
[INFO] [stderr]    Doc-tests simple_threadpool_func_bio
[INFO] [stdout] 
[INFO] [stdout] running 0 tests
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 0 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.00s
[INFO] [stdout] 
[INFO] running `Command { std: "docker" "inspect" "559aa19d58872a1d320a280b19ae708b79ff8d0e0b241dc85eec2903f8012ce6", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "559aa19d58872a1d320a280b19ae708b79ff8d0e0b241dc85eec2903f8012ce6", kill_on_drop: false }`
[INFO] [stdout] 559aa19d58872a1d320a280b19ae708b79ff8d0e0b241dc85eec2903f8012ce6