[INFO] cloning repository https://github.com/bluecupcoffee/multi_threaded_ws
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/bluecupcoffee/multi_threaded_ws" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fbluecupcoffee%2Fmulti_threaded_ws", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fbluecupcoffee%2Fmulti_threaded_ws'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] f36824fae9c384608528c166bfe6cd2234bec5e4
[INFO] checking bluecupcoffee/multi_threaded_ws against master#22572d0994593197593e2a1b7b18d720a9a349a7 for pr-126452-1
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fbluecupcoffee%2Fmulti_threaded_ws" "/workspace/builds/worker-0-tc1/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-0-tc1/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/bluecupcoffee/multi_threaded_ws on toolchain 22572d0994593197593e2a1b7b18d720a9a349a7
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+22572d0994593197593e2a1b7b18d720a9a349a7" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/bluecupcoffee/multi_threaded_ws
[INFO] finished tweaking git repo https://github.com/bluecupcoffee/multi_threaded_ws
[INFO] tweaked toml for git repo https://github.com/bluecupcoffee/multi_threaded_ws written to /workspace/builds/worker-0-tc1/source/Cargo.toml
[INFO] crate git repo https://github.com/bluecupcoffee/multi_threaded_ws 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" "+22572d0994593197593e2a1b7b18d720a9a349a7" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-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" "+22572d0994593197593e2a1b7b18d720a9a349a7" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] c7bda10205eb9f8785d2cf0758a51b76c589a0ac92563a7995d877b58f716b6d
[INFO] running `Command { std: "docker" "start" "-a" "c7bda10205eb9f8785d2cf0758a51b76c589a0ac92563a7995d877b58f716b6d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "c7bda10205eb9f8785d2cf0758a51b76c589a0ac92563a7995d877b58f716b6d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "c7bda10205eb9f8785d2cf0758a51b76c589a0ac92563a7995d877b58f716b6d", kill_on_drop: false }`
[INFO] [stdout] c7bda10205eb9f8785d2cf0758a51b76c589a0ac92563a7995d877b58f716b6d
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-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" "+22572d0994593197593e2a1b7b18d720a9a349a7" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 707834a30009a257bff42ec95a3dde33a0632e1e0d26b7881d410509a90e8b82
[INFO] running `Command { std: "docker" "start" "-a" "707834a30009a257bff42ec95a3dde33a0632e1e0d26b7881d410509a90e8b82", kill_on_drop: false }`
[INFO] [stderr]     Checking multi_threaded_ws v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: field `workers` is never read
[INFO] [stdout]  --> src/lib.rs:5:5
[INFO] [stdout]   |
[INFO] [stdout] 4 | pub struct ThreadPool {
[INFO] [stdout]   |            ---------- field in this struct
[INFO] [stdout] 5 |     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:34:5
[INFO] [stdout]    |
[INFO] [stdout] 33 | pub struct Worker {
[INFO] [stdout]    |            ------ fields in this struct
[INFO] [stdout] 34 |     id: usize,
[INFO] [stdout]    |     ^^
[INFO] [stdout] 35 |     thread: thread::JoinHandle<()>
[INFO] [stdout]    |     ^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 2 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `workers` is never read
[INFO] [stdout]  --> src/lib.rs:5:5
[INFO] [stdout]   |
[INFO] [stdout] 4 | pub struct ThreadPool {
[INFO] [stdout]   |            ---------- field in this struct
[INFO] [stdout] 5 |     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:34:5
[INFO] [stdout]    |
[INFO] [stdout] 33 | pub struct Worker {
[INFO] [stdout]    |            ------ fields in this struct
[INFO] [stdout] 34 |     id: usize,
[INFO] [stdout]    |     ^^
[INFO] [stdout] 35 |     thread: thread::JoinHandle<()>
[INFO] [stdout]    |     ^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 2 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `Worker`
[INFO] [stdout]  --> src/main.rs:9:37
[INFO] [stdout]   |
[INFO] [stdout] 9 | use multi_threaded_ws::{ThreadPool, Worker};
[INFO] [stdout]   |                                     ^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `Worker`
[INFO] [stdout]  --> src/main.rs:9:37
[INFO] [stdout]   |
[INFO] [stdout] 9 | use multi_threaded_ws::{ThreadPool, Worker};
[INFO] [stdout]   |                                     ^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 0.21s
[INFO] running `Command { std: "docker" "inspect" "707834a30009a257bff42ec95a3dde33a0632e1e0d26b7881d410509a90e8b82", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "707834a30009a257bff42ec95a3dde33a0632e1e0d26b7881d410509a90e8b82", kill_on_drop: false }`
[INFO] [stdout] 707834a30009a257bff42ec95a3dde33a0632e1e0d26b7881d410509a90e8b82
[INFO] checking bluecupcoffee/multi_threaded_ws against try#6289438dbad80b1a0029c66dd3f6abf57c2c51be for pr-126452-1
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fbluecupcoffee%2Fmulti_threaded_ws" "/workspace/builds/worker-0-tc2/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-0-tc2/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/bluecupcoffee/multi_threaded_ws on toolchain 6289438dbad80b1a0029c66dd3f6abf57c2c51be
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+6289438dbad80b1a0029c66dd3f6abf57c2c51be" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/bluecupcoffee/multi_threaded_ws
[INFO] finished tweaking git repo https://github.com/bluecupcoffee/multi_threaded_ws
[INFO] tweaked toml for git repo https://github.com/bluecupcoffee/multi_threaded_ws written to /workspace/builds/worker-0-tc2/source/Cargo.toml
[INFO] crate git repo https://github.com/bluecupcoffee/multi_threaded_ws 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" "+6289438dbad80b1a0029c66dd3f6abf57c2c51be" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-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@sha256:923055f121b5182466d55868a8b05e67af8ba4a3a3f6bad814e953ca3cd3ac2a" "/opt/rustwide/cargo-home/bin/cargo" "+6289438dbad80b1a0029c66dd3f6abf57c2c51be" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 38e1b8a2c5d0a8b45a2ea926caa9102bb60d8fd8f5edf7bca5538ed5118c851d
[INFO] running `Command { std: "docker" "start" "-a" "38e1b8a2c5d0a8b45a2ea926caa9102bb60d8fd8f5edf7bca5538ed5118c851d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "38e1b8a2c5d0a8b45a2ea926caa9102bb60d8fd8f5edf7bca5538ed5118c851d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "38e1b8a2c5d0a8b45a2ea926caa9102bb60d8fd8f5edf7bca5538ed5118c851d", kill_on_drop: false }`
[INFO] [stdout] 38e1b8a2c5d0a8b45a2ea926caa9102bb60d8fd8f5edf7bca5538ed5118c851d
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-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@sha256:923055f121b5182466d55868a8b05e67af8ba4a3a3f6bad814e953ca3cd3ac2a" "/opt/rustwide/cargo-home/bin/cargo" "+6289438dbad80b1a0029c66dd3f6abf57c2c51be" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 77745f173c811a6da8818e9004369ef2fbd1240dfbb205f5d1cf639d44558108
[INFO] running `Command { std: "docker" "start" "-a" "77745f173c811a6da8818e9004369ef2fbd1240dfbb205f5d1cf639d44558108", kill_on_drop: false }`
[INFO] [stderr]     Checking multi_threaded_ws v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: field `workers` is never read
[INFO] [stdout]  --> src/lib.rs:5:5
[INFO] [stdout]   |
[INFO] [stdout] 4 | pub struct ThreadPool {
[INFO] [stdout]   |            ---------- field in this struct
[INFO] [stdout] 5 |     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:34:5
[INFO] [stdout]    |
[INFO] [stdout] 33 | pub struct Worker {
[INFO] [stdout]    |            ------ fields in this struct
[INFO] [stdout] 34 |     id: usize,
[INFO] [stdout]    |     ^^
[INFO] [stdout] 35 |     thread: thread::JoinHandle<()>
[INFO] [stdout]    |     ^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `workers` is never read
[INFO] [stdout]  --> src/lib.rs:5:5
[INFO] [stdout]   |
[INFO] [stdout] 4 | pub struct ThreadPool {
[INFO] [stdout]   |            ---------- field in this struct
[INFO] [stdout] 5 |     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:34:5
[INFO] [stdout]    |
[INFO] [stdout] 33 | pub struct Worker {
[INFO] [stdout]    |            ------ fields in this struct
[INFO] [stdout] 34 |     id: usize,
[INFO] [stdout]    |     ^^
[INFO] [stdout] 35 |     thread: thread::JoinHandle<()>
[INFO] [stdout]    |     ^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 2 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 2 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `Worker`
[INFO] [stdout]  --> src/main.rs:9:37
[INFO] [stdout]   |
[INFO] [stdout] 9 | use multi_threaded_ws::{ThreadPool, Worker};
[INFO] [stdout]   |                                     ^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `Worker`
[INFO] [stdout]  --> src/main.rs:9:37
[INFO] [stdout]   |
[INFO] [stdout] 9 | use multi_threaded_ws::{ThreadPool, Worker};
[INFO] [stdout]   |                                     ^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 0.30s
[INFO] running `Command { std: "docker" "inspect" "77745f173c811a6da8818e9004369ef2fbd1240dfbb205f5d1cf639d44558108", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "77745f173c811a6da8818e9004369ef2fbd1240dfbb205f5d1cf639d44558108", kill_on_drop: false }`
[INFO] [stdout] 77745f173c811a6da8818e9004369ef2fbd1240dfbb205f5d1cf639d44558108