[INFO] fetching crate async-resource 0.1.0...
[INFO] testing async-resource-0.1.0 against 1.69.0 for beta-1.70-1
[INFO] extracting crate async-resource 0.1.0 into /workspace/builds/worker-3-tc1/source
[INFO] validating manifest of crates.io crate async-resource 0.1.0 on toolchain 1.69.0
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+1.69.0" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate async-resource 0.1.0
[INFO] finished tweaking crates.io crate async-resource 0.1.0
[INFO] tweaked toml for crates.io crate async-resource 0.1.0 written to /workspace/builds/worker-3-tc1/source/Cargo.toml
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" __CARGO_TEST_CHANNEL_OVERRIDE_DO_NOT_USE_THIS="nightly" "/workspace/cargo-home/bin/cargo" "+1.69.0" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+1.69.0" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded async-task v3.0.0
[INFO] [stderr]   Downloaded criterion-plot v0.4.5
[INFO] [stderr]   Downloaded plotters-svg v0.3.3
[INFO] [stderr]   Downloaded plotters-backend v0.3.4
[INFO] [stderr]   Downloaded serde_cbor v0.11.2
[INFO] [stderr]   Downloaded plotters v0.3.4
[INFO] [stderr]   Downloaded criterion v0.3.6
[INFO] [stderr]   Downloaded cache-padded v1.2.0
[INFO] [stderr]   Downloaded concurrent-queue v1.2.4
[INFO] [stderr]   Downloaded multitask v0.2.0
[INFO] [stderr]   Downloaded option-lock v0.1.0
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-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@sha256:5ff2268d62e97bff2cde7d5815dd6ed5b47097566f13b8d0ca110b04b60e07ed" "/opt/rustwide/cargo-home/bin/cargo" "+1.69.0" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 0eb9216831ab5c53966692813a319b4dd3f63c0bedb26a021ddc64e2dd2e5ecd
[INFO] running `Command { std: "docker" "start" "-a" "0eb9216831ab5c53966692813a319b4dd3f63c0bedb26a021ddc64e2dd2e5ecd", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "0eb9216831ab5c53966692813a319b4dd3f63c0bedb26a021ddc64e2dd2e5ecd", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "0eb9216831ab5c53966692813a319b4dd3f63c0bedb26a021ddc64e2dd2e5ecd", kill_on_drop: false }`
[INFO] [stdout] 0eb9216831ab5c53966692813a319b4dd3f63c0bedb26a021ddc64e2dd2e5ecd
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-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=warn" "-e" "RUSTDOCFLAGS=--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@sha256:5ff2268d62e97bff2cde7d5815dd6ed5b47097566f13b8d0ca110b04b60e07ed" "/opt/rustwide/cargo-home/bin/cargo" "+1.69.0" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 5ad1993b66e0a4b656db90ea14987a27775f1a93a46a9d1b642ce01444293bbf
[INFO] running `Command { std: "docker" "start" "-a" "5ad1993b66e0a4b656db90ea14987a27775f1a93a46a9d1b642ce01444293bbf", kill_on_drop: false }`
[INFO] [stderr]    Compiling futures-core v0.3.28
[INFO] [stderr]    Compiling futures-util v0.3.28
[INFO] [stderr]    Compiling cache-padded v1.2.0
[INFO] [stderr]    Compiling async-task v3.0.0
[INFO] [stderr]    Compiling syn v2.0.15
[INFO] [stderr]    Compiling fastrand v1.9.0
[INFO] [stderr]    Compiling option-lock v0.1.0
[INFO] [stderr]    Compiling concurrent-queue v1.2.4
[INFO] [stderr]    Compiling multitask v0.2.0
[INFO] [stderr]    Compiling futures-macro v0.3.28
[INFO] [stderr]    Compiling async-resource v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: use of deprecated method `std::sync::atomic::AtomicU8::compare_and_swap`: Use `compare_exchange` or `compare_exchange_weak` instead
[INFO] [stdout]    --> src/pool/mod.rs:375:14
[INFO] [stdout]     |
[INFO] [stdout] 375 |             .compare_and_swap(DRAIN, ACTIVE, Ordering::AcqRel);
[INFO] [stdout]     |              ^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(deprecated)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated method `std::sync::atomic::AtomicU8::compare_and_swap`: Use `compare_exchange` or `compare_exchange_weak` instead
[INFO] [stdout]   --> src/util/dropshot.rs:73:23
[INFO] [stdout]    |
[INFO] [stdout] 73 |         if self.state.compare_and_swap(INIT, CANCEL, Ordering::SeqCst) == INIT {
[INFO] [stdout]    |                       ^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated method `std::sync::atomic::AtomicU8::compare_and_swap`: Use `compare_exchange` or `compare_exchange_weak` instead
[INFO] [stdout]   --> src/util/thread_waker.rs:92:14
[INFO] [stdout]    |
[INFO] [stdout] 92 |             .compare_and_swap(IDLE, WAKE, Ordering::AcqRel)
[INFO] [stdout]    |              ^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated method `std::sync::atomic::AtomicU8::compare_and_swap`: Use `compare_exchange` or `compare_exchange_weak` instead
[INFO] [stdout]    --> src/util/thread_waker.rs:109:14
[INFO] [stdout]     |
[INFO] [stdout] 109 |             .compare_and_swap(IDLE, WAKE, Ordering::AcqRel)
[INFO] [stdout]     |              ^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `max_waiters` is never read
[INFO] [stdout]   --> src/pool/mod.rs:56:5
[INFO] [stdout]    |
[INFO] [stdout] 51 | pub(crate) struct PoolManageState<T: Send + 'static, E: 'static> {
[INFO] [stdout]    |                   --------------- field in this struct
[INFO] [stdout] ...
[INFO] [stdout] 56 |     max_waiters: Option<usize>,
[INFO] [stdout]    |     ^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 5 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 14.13s
[INFO] running `Command { std: "docker" "inspect" "5ad1993b66e0a4b656db90ea14987a27775f1a93a46a9d1b642ce01444293bbf", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "5ad1993b66e0a4b656db90ea14987a27775f1a93a46a9d1b642ce01444293bbf", kill_on_drop: false }`
[INFO] [stdout] 5ad1993b66e0a4b656db90ea14987a27775f1a93a46a9d1b642ce01444293bbf
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-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=warn" "-e" "RUSTDOCFLAGS=--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@sha256:5ff2268d62e97bff2cde7d5815dd6ed5b47097566f13b8d0ca110b04b60e07ed" "/opt/rustwide/cargo-home/bin/cargo" "+1.69.0" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 94ac86f81fac946a19f68bf5a20126e143a43880d1d831d32a8ca78719bbe735
[INFO] running `Command { std: "docker" "start" "-a" "94ac86f81fac946a19f68bf5a20126e143a43880d1d831d32a8ca78719bbe735", kill_on_drop: false }`
[INFO] [stderr]    Compiling crossbeam-utils v0.8.15
[INFO] [stderr]    Compiling memoffset v0.8.0
[INFO] [stderr]    Compiling crossbeam-epoch v0.9.14
[INFO] [stderr]    Compiling memchr v2.5.0
[INFO] [stderr]    Compiling rayon-core v1.11.0
[INFO] [stderr]    Compiling either v1.8.1
[INFO] [stderr]    Compiling num-traits v0.2.15
[INFO] [stderr]    Compiling unicode-width v0.1.10
[INFO] [stderr]    Compiling plotters-backend v0.3.4
[INFO] [stderr]    Compiling itertools v0.10.5
[INFO] [stderr]    Compiling textwrap v0.11.0
[INFO] [stderr]    Compiling plotters-svg v0.3.3
[INFO] [stderr]    Compiling same-file v1.0.6
[INFO] [stderr]    Compiling cast v0.3.0
[INFO] [stderr]    Compiling half v1.8.2
[INFO] [stderr]    Compiling futures-channel v0.3.28
[INFO] [stderr]    Compiling crossbeam-channel v0.5.8
[INFO] [stderr]    Compiling csv-core v0.1.10
[INFO] [stderr]    Compiling regex-syntax v0.7.1
[INFO] [stderr]    Compiling clap v2.34.0
[INFO] [stderr]    Compiling csv v1.2.1
[INFO] [stderr]    Compiling serde_cbor v0.11.2
[INFO] [stderr]    Compiling crossbeam-deque v0.8.3
[INFO] [stderr]    Compiling walkdir v2.3.3
[INFO] [stderr]    Compiling plotters v0.3.4
[INFO] [stderr]    Compiling criterion-plot v0.4.5
[INFO] [stderr]    Compiling tinytemplate v1.2.1
[INFO] [stderr]    Compiling serde_derive v1.0.160
[INFO] [stderr]    Compiling atty v0.2.14
[INFO] [stderr]    Compiling rayon v1.7.0
[INFO] [stderr]    Compiling oorandom v11.1.3
[INFO] [stderr]    Compiling regex v1.8.1
[INFO] [stderr]    Compiling futures-executor v0.3.28
[INFO] [stdout] warning: use of deprecated method `std::sync::atomic::AtomicU8::compare_and_swap`: Use `compare_exchange` or `compare_exchange_weak` instead
[INFO] [stdout]    --> src/pool/mod.rs:375:14
[INFO] [stdout]     |
[INFO] [stdout] 375 |             .compare_and_swap(DRAIN, ACTIVE, Ordering::AcqRel);
[INFO] [stdout]     |              ^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(deprecated)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated method `std::sync::atomic::AtomicU8::compare_and_swap`: Use `compare_exchange` or `compare_exchange_weak` instead
[INFO] [stdout]   --> src/util/dropshot.rs:73:23
[INFO] [stdout]    |
[INFO] [stdout] 73 |         if self.state.compare_and_swap(INIT, CANCEL, Ordering::SeqCst) == INIT {
[INFO] [stdout]    |                       ^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated method `std::sync::atomic::AtomicU8::compare_and_swap`: Use `compare_exchange` or `compare_exchange_weak` instead
[INFO] [stdout]   --> src/util/thread_waker.rs:92:14
[INFO] [stdout]    |
[INFO] [stdout] 92 |             .compare_and_swap(IDLE, WAKE, Ordering::AcqRel)
[INFO] [stdout]    |              ^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated method `std::sync::atomic::AtomicU8::compare_and_swap`: Use `compare_exchange` or `compare_exchange_weak` instead
[INFO] [stdout]    --> src/util/thread_waker.rs:109:14
[INFO] [stdout]     |
[INFO] [stdout] 109 |             .compare_and_swap(IDLE, WAKE, Ordering::AcqRel)
[INFO] [stdout]     |              ^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `max_waiters` is never read
[INFO] [stdout]   --> src/pool/mod.rs:56:5
[INFO] [stdout]    |
[INFO] [stdout] 51 | pub(crate) struct PoolManageState<T: Send + 'static, E: 'static> {
[INFO] [stdout]    |                   --------------- field in this struct
[INFO] [stdout] ...
[INFO] [stdout] 56 |     max_waiters: Option<usize>,
[INFO] [stdout]    |     ^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 5 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]    Compiling criterion v0.3.6
[INFO] [stderr]    Compiling async-resource v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: use of deprecated method `std::sync::atomic::AtomicU8::compare_and_swap`: Use `compare_exchange` or `compare_exchange_weak` instead
[INFO] [stdout]    --> src/pool/mod.rs:375:14
[INFO] [stdout]     |
[INFO] [stdout] 375 |             .compare_and_swap(DRAIN, ACTIVE, Ordering::AcqRel);
[INFO] [stdout]     |              ^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(deprecated)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated method `std::sync::atomic::AtomicU8::compare_and_swap`: Use `compare_exchange` or `compare_exchange_weak` instead
[INFO] [stdout]   --> src/util/dropshot.rs:73:23
[INFO] [stdout]    |
[INFO] [stdout] 73 |         if self.state.compare_and_swap(INIT, CANCEL, Ordering::SeqCst) == INIT {
[INFO] [stdout]    |                       ^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated method `std::sync::atomic::AtomicU8::compare_and_swap`: Use `compare_exchange` or `compare_exchange_weak` instead
[INFO] [stdout]   --> src/util/thread_waker.rs:92:14
[INFO] [stdout]    |
[INFO] [stdout] 92 |             .compare_and_swap(IDLE, WAKE, Ordering::AcqRel)
[INFO] [stdout]    |              ^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated method `std::sync::atomic::AtomicU8::compare_and_swap`: Use `compare_exchange` or `compare_exchange_weak` instead
[INFO] [stdout]    --> src/util/thread_waker.rs:109:14
[INFO] [stdout]     |
[INFO] [stdout] 109 |             .compare_and_swap(IDLE, WAKE, Ordering::AcqRel)
[INFO] [stdout]     |              ^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `max_waiters` is never read
[INFO] [stdout]   --> src/pool/mod.rs:56:5
[INFO] [stdout]    |
[INFO] [stdout] 51 | pub(crate) struct PoolManageState<T: Send + 'static, E: 'static> {
[INFO] [stdout]    |                   --------------- field in this struct
[INFO] [stdout] ...
[INFO] [stdout] 56 |     max_waiters: Option<usize>,
[INFO] [stdout]    |     ^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 5 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 44.41s
[INFO] running `Command { std: "docker" "inspect" "94ac86f81fac946a19f68bf5a20126e143a43880d1d831d32a8ca78719bbe735", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "94ac86f81fac946a19f68bf5a20126e143a43880d1d831d32a8ca78719bbe735", kill_on_drop: false }`
[INFO] [stdout] 94ac86f81fac946a19f68bf5a20126e143a43880d1d831d32a8ca78719bbe735
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-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=warn" "-e" "RUSTDOCFLAGS=--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@sha256:5ff2268d62e97bff2cde7d5815dd6ed5b47097566f13b8d0ca110b04b60e07ed" "/opt/rustwide/cargo-home/bin/cargo" "+1.69.0" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] 86376c779c3f9a07e260f538ef6ac920eee7f73543cd2fb7b7711fc5a6a02a1b
[INFO] running `Command { std: "docker" "start" "-a" "86376c779c3f9a07e260f538ef6ac920eee7f73543cd2fb7b7711fc5a6a02a1b", kill_on_drop: false }`
[INFO] [stderr] warning: use of deprecated method `std::sync::atomic::AtomicU8::compare_and_swap`: Use `compare_exchange` or `compare_exchange_weak` instead
[INFO] [stderr]    --> src/pool/mod.rs:375:14
[INFO] [stderr]     |
[INFO] [stderr] 375 |             .compare_and_swap(DRAIN, ACTIVE, Ordering::AcqRel);
[INFO] [stderr]     |              ^^^^^^^^^^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = note: `#[warn(deprecated)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated method `std::sync::atomic::AtomicU8::compare_and_swap`: Use `compare_exchange` or `compare_exchange_weak` instead
[INFO] [stderr]   --> src/util/dropshot.rs:73:23
[INFO] [stderr]    |
[INFO] [stderr] 73 |         if self.state.compare_and_swap(INIT, CANCEL, Ordering::SeqCst) == INIT {
[INFO] [stderr]    |                       ^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated method `std::sync::atomic::AtomicU8::compare_and_swap`: Use `compare_exchange` or `compare_exchange_weak` instead
[INFO] [stderr]   --> src/util/thread_waker.rs:92:14
[INFO] [stderr]    |
[INFO] [stderr] 92 |             .compare_and_swap(IDLE, WAKE, Ordering::AcqRel)
[INFO] [stderr]    |              ^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated method `std::sync::atomic::AtomicU8::compare_and_swap`: Use `compare_exchange` or `compare_exchange_weak` instead
[INFO] [stderr]    --> src/util/thread_waker.rs:109:14
[INFO] [stderr]     |
[INFO] [stderr] 109 |             .compare_and_swap(IDLE, WAKE, Ordering::AcqRel)
[INFO] [stderr]     |              ^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: field `max_waiters` is never read
[INFO] [stderr]   --> src/pool/mod.rs:56:5
[INFO] [stderr]    |
[INFO] [stderr] 51 | pub(crate) struct PoolManageState<T: Send + 'static, E: 'static> {
[INFO] [stderr]    |                   --------------- field in this struct
[INFO] [stderr] ...
[INFO] [stderr] 56 |     max_waiters: Option<usize>,
[INFO] [stderr]    |     ^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(dead_code)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: `async-resource` (lib) generated 5 warnings
[INFO] [stderr] warning: `async-resource` (lib test) generated 5 warnings (5 duplicates)
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.09s
[INFO] [stderr]      Running unittests src/lib.rs (/opt/rustwide/target/debug/deps/async_resource-be8b977dc9b53c3b)
[INFO] [stdout] 
[INFO] [stdout] running 6 tests
[INFO] [stdout] test util::dropshot::tests::dropshot_test_future ... ok
[INFO] [stdout] test resource::lock::tests::resource_lock_debug ... ok
[INFO] [stdout] test util::dropshot::tests::dropshot_sender_dropped ... ok
[INFO] [stderr]      Running tests/pool.rs (/opt/rustwide/target/debug/deps/pool-77a6a7a604ff314f)
[INFO] [stdout] test util::dropshot::tests::dropshot_receiver_dropped ... ok
[INFO] [stdout] test resource::lock::tests::resource_lock_eq_hash ... ok
[INFO] [stdout] test util::dropshot::tests::dropshot_send_normal ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 6 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.02s
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] running 4 tests
[INFO] [stdout] test test_pool_not_sync ... ok
[INFO] [stdout] test test_pool_waiter ... ok
[INFO] [stdout] test test_pool_acquire_order_timeout ... ok
[INFO] [stdout] test test_pool_acquire_order_no_timeout ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 4 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.06s
[INFO] [stdout] 
[INFO] [stderr]    Doc-tests async_resource
[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" "86376c779c3f9a07e260f538ef6ac920eee7f73543cd2fb7b7711fc5a6a02a1b", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "86376c779c3f9a07e260f538ef6ac920eee7f73543cd2fb7b7711fc5a6a02a1b", kill_on_drop: false }`
[INFO] [stdout] 86376c779c3f9a07e260f538ef6ac920eee7f73543cd2fb7b7711fc5a6a02a1b
