[INFO] fetching crate simple_thread_pool 0.1.1...
[INFO] building simple_thread_pool-0.1.1 against master#c7f6aa2869acdbf014d094c6e427e554e160b6db for pr-146237-2
[INFO] extracting crate simple_thread_pool 0.1.1 into /workspace/builds/worker-5-tc1/source
[INFO] started tweaking crates.io crate simple_thread_pool 0.1.1
[INFO] finished tweaking crates.io crate simple_thread_pool 0.1.1
[INFO] tweaked toml for crates.io crate simple_thread_pool 0.1.1 written to /workspace/builds/worker-5-tc1/source/Cargo.toml
[INFO] validating manifest of crates.io crate simple_thread_pool 0.1.1 on toolchain c7f6aa2869acdbf014d094c6e427e554e160b6db
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+c7f6aa2869acdbf014d094c6e427e554e160b6db" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+c7f6aa2869acdbf014d094c6e427e554e160b6db" "generate-lockfile" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+c7f6aa2869acdbf014d094c6e427e554e160b6db" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-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" "+c7f6aa2869acdbf014d094c6e427e554e160b6db" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 4f8b7bf9d39786080acc8e1c097a992de57024b4e5656c9582005c982eca3077
[INFO] running `Command { std: "docker" "start" "-a" "4f8b7bf9d39786080acc8e1c097a992de57024b4e5656c9582005c982eca3077", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "4f8b7bf9d39786080acc8e1c097a992de57024b4e5656c9582005c982eca3077", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "4f8b7bf9d39786080acc8e1c097a992de57024b4e5656c9582005c982eca3077", kill_on_drop: false }`
[INFO] [stdout] 4f8b7bf9d39786080acc8e1c097a992de57024b4e5656c9582005c982eca3077
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-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" "+c7f6aa2869acdbf014d094c6e427e554e160b6db" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 40f8db2e98a5fa037c284b6b5761caf6d19b27d8b3fcfd7f9a406a12b9740915
[INFO] running `Command { std: "docker" "start" "-a" "40f8db2e98a5fa037c284b6b5761caf6d19b27d8b3fcfd7f9a406a12b9740915", kill_on_drop: false }`
[INFO] [stderr]    Compiling simple_thread_pool v0.1.1 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused imports: `sleep` and `time::Duration`
[INFO] [stdout]  --> src/lib.rs:5:20
[INFO] [stdout]   |
[INFO] [stdout] 5 |     thread::{self, sleep},
[INFO] [stdout]   |                    ^^^^^
[INFO] [stdout] 6 |     time::Duration,
[INFO] [stdout]   |     ^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: fields `id` and `thread` are never read
[INFO] [stdout]   --> src/lib.rs:16:5
[INFO] [stdout]    |
[INFO] [stdout] 15 | struct Worker {
[INFO] [stdout]    |        ------ fields in this struct
[INFO] [stdout] 16 |     id: usize,
[INFO] [stdout]    |     ^^
[INFO] [stdout] 17 |     thread: thread::JoinHandle<()>,
[INFO] [stdout]    |     ^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 0.26s
[INFO] running `Command { std: "docker" "inspect" "40f8db2e98a5fa037c284b6b5761caf6d19b27d8b3fcfd7f9a406a12b9740915", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "40f8db2e98a5fa037c284b6b5761caf6d19b27d8b3fcfd7f9a406a12b9740915", kill_on_drop: false }`
[INFO] [stdout] 40f8db2e98a5fa037c284b6b5761caf6d19b27d8b3fcfd7f9a406a12b9740915
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-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" "+c7f6aa2869acdbf014d094c6e427e554e160b6db" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 7bcabbfe68c2016f80cccef5cd82e9dc391efdb91fe2579747325eafcfba55aa
[INFO] running `Command { std: "docker" "start" "-a" "7bcabbfe68c2016f80cccef5cd82e9dc391efdb91fe2579747325eafcfba55aa", kill_on_drop: false }`
[INFO] [stderr]    Compiling simple_thread_pool v0.1.1 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused imports: `sleep` and `time::Duration`
[INFO] [stdout]  --> src/lib.rs:5:20
[INFO] [stdout]   |
[INFO] [stdout] 5 |     thread::{self, sleep},
[INFO] [stdout]   |                    ^^^^^
[INFO] [stdout] 6 |     time::Duration,
[INFO] [stdout]   |     ^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: fields `id` and `thread` are never read
[INFO] [stdout]   --> src/lib.rs:16:5
[INFO] [stdout]    |
[INFO] [stdout] 15 | struct Worker {
[INFO] [stdout]    |        ------ fields in this struct
[INFO] [stdout] 16 |     id: usize,
[INFO] [stdout]    |     ^^
[INFO] [stdout] 17 |     thread: thread::JoinHandle<()>,
[INFO] [stdout]    |     ^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: fields `id` and `thread` are never read
[INFO] [stdout]   --> src/lib.rs:16:5
[INFO] [stdout]    |
[INFO] [stdout] 15 | struct Worker {
[INFO] [stdout]    |        ------ fields in this struct
[INFO] [stdout] 16 |     id: usize,
[INFO] [stdout]    |     ^^
[INFO] [stdout] 17 |     thread: thread::JoinHandle<()>,
[INFO] [stdout]    |     ^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 0.39s
[INFO] running `Command { std: "docker" "inspect" "7bcabbfe68c2016f80cccef5cd82e9dc391efdb91fe2579747325eafcfba55aa", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "7bcabbfe68c2016f80cccef5cd82e9dc391efdb91fe2579747325eafcfba55aa", kill_on_drop: false }`
[INFO] [stdout] 7bcabbfe68c2016f80cccef5cd82e9dc391efdb91fe2579747325eafcfba55aa