[INFO] fetching crate threader 0.0.4...
[INFO] testing threader-0.0.4 against beta-2022-04-10 for beta-1.61-1
[INFO] extracting crate threader 0.0.4 into /workspace/builds/worker-11/source
[INFO] validating manifest of crates.io crate threader 0.0.4 on toolchain beta-2022-04-10
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2022-04-10" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate threader 0.0.4
[INFO] finished tweaking crates.io crate threader 0.0.4
[INFO] tweaked toml for crates.io crate threader 0.0.4 written to /workspace/builds/worker-11/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2022-04-10" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2022-04-10" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-11/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-11/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:eaef2f80f755933c374d2ae5edccceec0c1312ceb8a4e0b6404e8ab76561e1e5" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2022-04-10" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 168a5efc22a9c73bb2f253acb2c807d4f463aca512152a1a7bc922ba8e1123ec
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] running `Command { std: "docker" "start" "-a" "168a5efc22a9c73bb2f253acb2c807d4f463aca512152a1a7bc922ba8e1123ec", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "168a5efc22a9c73bb2f253acb2c807d4f463aca512152a1a7bc922ba8e1123ec", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "168a5efc22a9c73bb2f253acb2c807d4f463aca512152a1a7bc922ba8e1123ec", kill_on_drop: false }`
[INFO] [stdout] 168a5efc22a9c73bb2f253acb2c807d4f463aca512152a1a7bc922ba8e1123ec
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-11/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-11/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=warn" "-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:eaef2f80f755933c374d2ae5edccceec0c1312ceb8a4e0b6404e8ab76561e1e5" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2022-04-10" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] [stdout] 0aaa5da47f3d855a4bfbfca64977376ca0b1bb32f26d65d1a34f3673aa3484b3
[INFO] running `Command { std: "docker" "start" "-a" "0aaa5da47f3d855a4bfbfca64977376ca0b1bb32f26d65d1a34f3673aa3484b3", kill_on_drop: false }`
[INFO] [stderr]    Compiling crossbeam-channel v0.4.4
[INFO] [stderr]    Compiling futures-macro v0.3.21
[INFO] [stderr]    Compiling crossbeam v0.7.3
[INFO] [stderr]    Compiling futures-util v0.3.21
[INFO] [stderr]    Compiling futures-executor v0.3.21
[INFO] [stderr]    Compiling futures v0.3.21
[INFO] [stderr]    Compiling threader v0.0.4 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused import: `ptr`
[INFO] [stdout]  --> src/thread_pool/task/raw.rs:8:5
[INFO] [stdout]   |
[INFO] [stdout] 8 |     ptr,
[INFO] [stdout]   |     ^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `InvalidGuard`
[INFO] [stdout]  --> src/thread_pool/task/mod.rs:6:19
[INFO] [stdout]   |
[INFO] [stdout] 6 | use raw::{Header, InvalidGuard, RawTask};
[INFO] [stdout]   |                   ^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated associated function `std::sync::atomic::AtomicUsize::compare_and_swap`: Use `compare_exchange` or `compare_exchange_weak` instead
[INFO] [stdout]    --> src/thread_pool/task/raw.rs:181:10
[INFO] [stdout]     |
[INFO] [stdout] 181 |         .compare_and_swap(UNLOCKED, LOCKED, Ordering::AcqRel)
[INFO] [stdout]     |          ^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(deprecated)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated associated function `std::sync::atomic::AtomicUsize::compare_and_swap`: Use `compare_exchange` or `compare_exchange_weak` instead
[INFO] [stdout]   --> src/thread_pool/worker.rs:57:14
[INFO] [stdout]    |
[INFO] [stdout] 57 |             .compare_and_swap(RUNNING, IDLE, Ordering::AcqRel)
[INFO] [stdout]    |              ^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated associated function `std::sync::atomic::AtomicBool::compare_and_swap`: Use `compare_exchange` or `compare_exchange_weak` instead
[INFO] [stdout]    --> src/utils/thread_parker.rs:127:14
[INFO] [stdout]     |
[INFO] [stdout] 127 |             .compare_and_swap(false, true, Ordering::Release);
[INFO] [stdout]     |              ^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field is never read: `count`
[INFO] [stdout]   --> src/thread_pool/mod.rs:45:5
[INFO] [stdout]    |
[INFO] [stdout] 45 |     count: usize,
[INFO] [stdout]    |     ^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `try_clone`
[INFO] [stdout]    --> src/net/tcp.rs:102:8
[INFO] [stdout]     |
[INFO] [stdout] 102 |     fn try_clone(&self) -> io::Result<TcpStream> {
[INFO] [stdout]     |        ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 7 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 12.48s
[INFO] running `Command { std: "docker" "inspect" "0aaa5da47f3d855a4bfbfca64977376ca0b1bb32f26d65d1a34f3673aa3484b3", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "0aaa5da47f3d855a4bfbfca64977376ca0b1bb32f26d65d1a34f3673aa3484b3", kill_on_drop: false }`
[INFO] [stdout] 0aaa5da47f3d855a4bfbfca64977376ca0b1bb32f26d65d1a34f3673aa3484b3
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-11/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-11/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=warn" "-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:eaef2f80f755933c374d2ae5edccceec0c1312ceb8a4e0b6404e8ab76561e1e5" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2022-04-10" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] [stdout] 6e085c9bf276ad7028fc99407dcb66d2bd08a3871e7c1cb4e488d0c4839476e5
[INFO] running `Command { std: "docker" "start" "-a" "6e085c9bf276ad7028fc99407dcb66d2bd08a3871e7c1cb4e488d0c4839476e5", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]    Compiling serde_derive v1.0.136
[INFO] [stdout] warning: unused import: `ptr`
[INFO] [stdout]  --> src/thread_pool/task/raw.rs:8:5
[INFO] [stdout]   |
[INFO] [stdout] 8 |     ptr,
[INFO] [stdout]   |     ^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `InvalidGuard`
[INFO] [stdout]  --> src/thread_pool/task/mod.rs:6:19
[INFO] [stdout]   |
[INFO] [stdout] 6 | use raw::{Header, InvalidGuard, RawTask};
[INFO] [stdout]   |                   ^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated associated function `std::sync::atomic::AtomicUsize::compare_and_swap`: Use `compare_exchange` or `compare_exchange_weak` instead
[INFO] [stdout]    --> src/thread_pool/task/raw.rs:181:10
[INFO] [stdout]     |
[INFO] [stdout] 181 |         .compare_and_swap(UNLOCKED, LOCKED, Ordering::AcqRel)
[INFO] [stdout]     |          ^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(deprecated)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated associated function `std::sync::atomic::AtomicUsize::compare_and_swap`: Use `compare_exchange` or `compare_exchange_weak` instead
[INFO] [stdout]   --> src/thread_pool/worker.rs:57:14
[INFO] [stdout]    |
[INFO] [stdout] 57 |             .compare_and_swap(RUNNING, IDLE, Ordering::AcqRel)
[INFO] [stdout]    |              ^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated associated function `std::sync::atomic::AtomicBool::compare_and_swap`: Use `compare_exchange` or `compare_exchange_weak` instead
[INFO] [stdout]    --> src/utils/thread_parker.rs:127:14
[INFO] [stdout]     |
[INFO] [stdout] 127 |             .compare_and_swap(false, true, Ordering::Release);
[INFO] [stdout]     |              ^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field is never read: `count`
[INFO] [stdout]   --> src/thread_pool/mod.rs:45:5
[INFO] [stdout]    |
[INFO] [stdout] 45 |     count: usize,
[INFO] [stdout]    |     ^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `try_clone`
[INFO] [stdout]    --> src/net/tcp.rs:102:8
[INFO] [stdout]     |
[INFO] [stdout] 102 |     fn try_clone(&self) -> io::Result<TcpStream> {
[INFO] [stdout]     |        ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 7 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]    Compiling flame v0.2.2
[INFO] [stderr]    Compiling threader v0.0.4 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused import: `ptr`
[INFO] [stdout]  --> src/thread_pool/task/raw.rs:8:5
[INFO] [stdout]   |
[INFO] [stdout] 8 |     ptr,
[INFO] [stdout]   |     ^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `InvalidGuard`
[INFO] [stdout]  --> src/thread_pool/task/mod.rs:6:19
[INFO] [stdout]   |
[INFO] [stdout] 6 | use raw::{Header, InvalidGuard, RawTask};
[INFO] [stdout]   |                   ^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated associated function `std::sync::atomic::AtomicUsize::compare_and_swap`: Use `compare_exchange` or `compare_exchange_weak` instead
[INFO] [stdout]    --> src/thread_pool/task/raw.rs:181:10
[INFO] [stdout]     |
[INFO] [stdout] 181 |         .compare_and_swap(UNLOCKED, LOCKED, Ordering::AcqRel)
[INFO] [stdout]     |          ^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(deprecated)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated associated function `std::sync::atomic::AtomicUsize::compare_and_swap`: Use `compare_exchange` or `compare_exchange_weak` instead
[INFO] [stdout]   --> src/thread_pool/worker.rs:57:14
[INFO] [stdout]    |
[INFO] [stdout] 57 |             .compare_and_swap(RUNNING, IDLE, Ordering::AcqRel)
[INFO] [stdout]    |              ^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated associated function `std::sync::atomic::AtomicBool::compare_and_swap`: Use `compare_exchange` or `compare_exchange_weak` instead
[INFO] [stdout]    --> src/utils/thread_parker.rs:127:14
[INFO] [stdout]     |
[INFO] [stdout] 127 |             .compare_and_swap(false, true, Ordering::Release);
[INFO] [stdout]     |              ^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]    --> src/thread_pool/mod.rs:252:21
[INFO] [stdout]     |
[INFO] [stdout] 252 |             fn poll(mut self: Pin<&mut Self>, cx: &mut Context<'_>) -> Poll<Self::Output> {
[INFO] [stdout]     |                     ----^^^^
[INFO] [stdout]     |                     |
[INFO] [stdout]     |                     help: remove this `mut`
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_mut)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field is never read: `count`
[INFO] [stdout]   --> src/thread_pool/mod.rs:45:5
[INFO] [stdout]    |
[INFO] [stdout] 45 |     count: usize,
[INFO] [stdout]    |     ^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `try_clone`
[INFO] [stdout]    --> src/net/tcp.rs:102:8
[INFO] [stdout]     |
[INFO] [stdout] 102 |     fn try_clone(&self) -> io::Result<TcpStream> {
[INFO] [stdout]     |        ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 8 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 14.66s
[INFO] [stderr]   Executable unittests src/lib.rs (/opt/rustwide/target/debug/deps/threader-4e5c74332e0b06cc)
[INFO] running `Command { std: "docker" "inspect" "6e085c9bf276ad7028fc99407dcb66d2bd08a3871e7c1cb4e488d0c4839476e5", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "6e085c9bf276ad7028fc99407dcb66d2bd08a3871e7c1cb4e488d0c4839476e5", kill_on_drop: false }`
[INFO] [stdout] 6e085c9bf276ad7028fc99407dcb66d2bd08a3871e7c1cb4e488d0c4839476e5
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-11/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-11/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=warn" "-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:eaef2f80f755933c374d2ae5edccceec0c1312ceb8a4e0b6404e8ab76561e1e5" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2022-04-10" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] 52093d6158c72cc64207f96f6c500a3a764c0f799e4e28eba514a1941ed26d6c
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] running `Command { std: "docker" "start" "-a" "52093d6158c72cc64207f96f6c500a3a764c0f799e4e28eba514a1941ed26d6c", kill_on_drop: false }`
[INFO] [stderr] warning: unused import: `ptr`
[INFO] [stderr]  --> src/thread_pool/task/raw.rs:8:5
[INFO] [stderr]   |
[INFO] [stderr] 8 |     ptr,
[INFO] [stderr]   |     ^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `InvalidGuard`
[INFO] [stderr]  --> src/thread_pool/task/mod.rs:6:19
[INFO] [stderr]   |
[INFO] [stderr] 6 | use raw::{Header, InvalidGuard, RawTask};
[INFO] [stderr]   |                   ^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated associated function `std::sync::atomic::AtomicUsize::compare_and_swap`: Use `compare_exchange` or `compare_exchange_weak` instead
[INFO] [stderr]    --> src/thread_pool/task/raw.rs:181:10
[INFO] [stderr]     |
[INFO] [stderr] 181 |         .compare_and_swap(UNLOCKED, LOCKED, Ordering::AcqRel)
[INFO] [stderr]     |          ^^^^^^^^^^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = note: `#[warn(deprecated)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated associated function `std::sync::atomic::AtomicUsize::compare_and_swap`: Use `compare_exchange` or `compare_exchange_weak` instead
[INFO] [stderr]   --> src/thread_pool/worker.rs:57:14
[INFO] [stderr]    |
[INFO] [stderr] 57 |             .compare_and_swap(RUNNING, IDLE, Ordering::AcqRel)
[INFO] [stderr]    |              ^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated associated function `std::sync::atomic::AtomicBool::compare_and_swap`: Use `compare_exchange` or `compare_exchange_weak` instead
[INFO] [stderr]    --> src/utils/thread_parker.rs:127:14
[INFO] [stderr]     |
[INFO] [stderr] 127 |             .compare_and_swap(false, true, Ordering::Release);
[INFO] [stderr]     |              ^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: field is never read: `count`
[INFO] [stderr]   --> src/thread_pool/mod.rs:45:5
[INFO] [stderr]    |
[INFO] [stderr] 45 |     count: usize,
[INFO] [stderr]    |     ^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(dead_code)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: associated function is never used: `try_clone`
[INFO] [stderr]    --> src/net/tcp.rs:102:8
[INFO] [stderr]     |
[INFO] [stderr] 102 |     fn try_clone(&self) -> io::Result<TcpStream> {
[INFO] [stderr]     |        ^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: variable does not need to be mutable
[INFO] [stderr]    --> src/thread_pool/mod.rs:252:21
[INFO] [stderr]     |
[INFO] [stderr] 252 |             fn poll(mut self: Pin<&mut Self>, cx: &mut Context<'_>) -> Poll<Self::Output> {
[INFO] [stderr]     |                     ----^^^^
[INFO] [stderr]     |                     |
[INFO] [stderr]     |                     help: remove this `mut`
[INFO] [stderr]     |
[INFO] [stderr]     = note: `#[warn(unused_mut)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: `threader` (lib) generated 7 warnings
[INFO] [stderr] warning: `threader` (lib test) generated 8 warnings (7 duplicates)
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.09s
[INFO] [stderr]      Running unittests src/lib.rs (/opt/rustwide/target/debug/deps/threader-4e5c74332e0b06cc)
[INFO] [stdout] 
[INFO] [stdout] running 9 tests
[INFO] [stdout] test net::tcp::tests::connect_test ... ignored
[INFO] [stdout] test thread_pool::tests::bad_future ... ignored
[INFO] [stdout] test thread_pool::tests::time_threader ... ignored
[INFO] [stdout] test thread_pool::tests::custom_thread_count ... ok
[INFO] [stdout] test net::tcp::tests::listener_stream_connect ... ok
[INFO] [stdout] test thread_pool::tests::zero_threads - should panic ... ok
[INFO] [stdout] test thread_pool::tests::simple ... ok
[INFO] [stdout] test thread_pool::tests::reschedule ... ok
[INFO] [stdout] test net::tcp::tests::connect_invalid_port has been running for over 60 seconds
[ERROR] error running command: no output for 300 seconds
[INFO] running `Command { std: "docker" "inspect" "52093d6158c72cc64207f96f6c500a3a764c0f799e4e28eba514a1941ed26d6c", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "52093d6158c72cc64207f96f6c500a3a764c0f799e4e28eba514a1941ed26d6c", kill_on_drop: false }`
[INFO] [stdout] 52093d6158c72cc64207f96f6c500a3a764c0f799e4e28eba514a1941ed26d6c