[INFO] fetching crate hakuban 0.7.3...
[INFO] testing hakuban-0.7.3 against beta-2023-04-20 for beta-1.70-1
[INFO] extracting crate hakuban 0.7.3 into /workspace/builds/worker-4-tc2/source
[INFO] validating manifest of crates.io crate hakuban 0.7.3 on toolchain beta-2023-04-20
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+beta-2023-04-20" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate hakuban 0.7.3
[INFO] finished tweaking crates.io crate hakuban 0.7.3
[INFO] tweaked toml for crates.io crate hakuban 0.7.3 written to /workspace/builds/worker-4-tc2/source/Cargo.toml
[INFO] crate crates.io crate hakuban 0.7.3 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" "+beta-2023-04-20" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded tokio-test v0.4.2
[INFO] [stderr]   Downloaded serde_yaml v0.9.16
[INFO] [stderr]   Downloaded permutations v0.1.1
[INFO] [stderr]   Downloaded async-tungstenite v0.18.0
[INFO] [stderr]   Downloaded sysinfo v0.18.2
[INFO] [stderr]   Downloaded console_log v0.2.0
[INFO] [stderr]   Downloaded openssl-src v111.24.0+1.1.1s
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-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@sha256:5ff2268d62e97bff2cde7d5815dd6ed5b47097566f13b8d0ca110b04b60e07ed" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2023-04-20" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 0ec4a7524fd6e52d159e83cb98739a75906a32a0ff00eb6e401e184a58e8c420
[INFO] running `Command { std: "docker" "start" "-a" "0ec4a7524fd6e52d159e83cb98739a75906a32a0ff00eb6e401e184a58e8c420", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "0ec4a7524fd6e52d159e83cb98739a75906a32a0ff00eb6e401e184a58e8c420", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "0ec4a7524fd6e52d159e83cb98739a75906a32a0ff00eb6e401e184a58e8c420", kill_on_drop: false }`
[INFO] [stdout] 0ec4a7524fd6e52d159e83cb98739a75906a32a0ff00eb6e401e184a58e8c420
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-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=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" "+beta-2023-04-20" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 767de3831404c2f5c07c338a761d716d83fb316c30adf1e77c1deda4a7210ee8
[INFO] running `Command { std: "docker" "start" "-a" "767de3831404c2f5c07c338a761d716d83fb316c30adf1e77c1deda4a7210ee8", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.139
[INFO] [stderr]    Compiling proc-macro2 v1.0.49
[INFO] [stderr]    Compiling unicode-ident v1.0.6
[INFO] [stderr]    Compiling quote v1.0.23
[INFO] [stderr]    Compiling syn v1.0.107
[INFO] [stderr]    Compiling pkg-config v0.3.26
[INFO] [stderr]    Compiling cc v1.0.78
[INFO] [stderr]    Compiling log v0.4.17
[INFO] [stderr]    Compiling typenum v1.16.0
[INFO] [stderr]    Compiling futures-core v0.3.25
[INFO] [stderr]    Compiling pin-project-lite v0.2.9
[INFO] [stderr]    Compiling parking_lot_core v0.9.5
[INFO] [stderr]    Compiling generic-array v0.14.6
[INFO] [stderr]    Compiling lock_api v0.4.9
[INFO] [stderr]    Compiling slab v0.4.7
[INFO] [stderr]    Compiling foreign-types-shared v0.1.1
[INFO] [stderr]    Compiling smallvec v1.10.0
[INFO] [stderr]    Compiling bytes v1.3.0
[INFO] [stderr]    Compiling openssl v0.10.45
[INFO] [stderr]    Compiling futures-sink v0.3.25
[INFO] [stderr]    Compiling futures-task v0.3.25
[INFO] [stderr]    Compiling futures-channel v0.3.25
[INFO] [stderr]    Compiling foreign-types v0.3.2
[INFO] [stderr]    Compiling tokio v1.23.0
[INFO] [stderr]    Compiling serde_derive v1.0.152
[INFO] [stderr]    Compiling futures-util v0.3.25
[INFO] [stderr]    Compiling native-tls v0.2.11
[INFO] [stderr]    Compiling once_cell v1.17.0
[INFO] [stderr]    Compiling futures-io v0.3.25
[INFO] [stderr]    Compiling unicode-normalization v0.1.22
[INFO] [stderr]    Compiling percent-encoding v2.2.0
[INFO] [stderr]    Compiling ppv-lite86 v0.2.17
[INFO] [stderr]    Compiling serde v1.0.152
[INFO] [stderr]    Compiling httparse v1.8.0
[INFO] [stderr]    Compiling unicode-bidi v0.3.8
[INFO] [stderr]    Compiling thiserror v1.0.38
[INFO] [stderr]    Compiling itoa v1.0.5
[INFO] [stderr]    Compiling form_urlencoded v1.1.0
[INFO] [stderr]    Compiling cpufeatures v0.2.5
[INFO] [stderr]    Compiling aho-corasick v0.7.20
[INFO] [stderr]    Compiling http v0.2.8
[INFO] [stderr]    Compiling getrandom v0.2.8
[INFO] [stderr]    Compiling socket2 v0.4.7
[INFO] [stderr]    Compiling signal-hook-registry v1.4.0
[INFO] [stderr]    Compiling mio v0.8.5
[INFO] [stderr]    Compiling openssl-sys v0.9.80
[INFO] [stderr]    Compiling parking_lot v0.12.1
[INFO] [stderr]    Compiling num_cpus v1.15.0
[INFO] [stderr]    Compiling rand_core v0.6.4
[INFO] [stderr]    Compiling idna v0.3.0
[INFO] [stderr]    Compiling rand_chacha v0.3.1
[INFO] [stderr]    Compiling atty v0.2.14
[INFO] [stderr]    Compiling base64 v0.13.1
[INFO] [stderr]    Compiling serde_json v1.0.91
[INFO] [stderr]    Compiling url v2.3.1
[INFO] [stderr]    Compiling rand v0.8.5
[INFO] [stderr]    Compiling utf-8 v0.7.6
[INFO] [stderr]    Compiling anyhow v1.0.68
[INFO] [stderr]    Compiling regex-syntax v0.6.28
[INFO] [stderr]    Compiling byteorder v1.4.3
[INFO] [stderr]    Compiling textwrap v0.11.0
[INFO] [stderr]    Compiling humantime v2.1.0
[INFO] [stderr]    Compiling ryu v1.0.12
[INFO] [stderr]    Compiling crypto-common v0.1.6
[INFO] [stderr]    Compiling block-buffer v0.10.3
[INFO] [stderr]    Compiling crc-catalog v2.1.0
[INFO] [stderr]    Compiling match_cfg v0.1.0
[INFO] [stderr]    Compiling clap v2.34.0
[INFO] [stderr]    Compiling instant v0.1.12
[INFO] [stderr]    Compiling digest v0.10.6
[INFO] [stderr]    Compiling hostname v0.3.1
[INFO] [stderr]    Compiling crc v3.0.0
[INFO] [stderr]    Compiling sha-1 v0.10.1
[INFO] [stderr]    Compiling regex v1.7.0
[INFO] [stderr]    Compiling env_logger v0.9.3
[INFO] [stderr]    Compiling openssl-macros v0.1.0
[INFO] [stderr]    Compiling futures-macro v0.3.25
[INFO] [stderr]    Compiling tokio-macros v1.8.2
[INFO] [stderr]    Compiling thiserror-impl v1.0.38
[INFO] [stderr]    Compiling tungstenite v0.17.3
[INFO] [stderr]    Compiling futures-executor v0.3.25
[INFO] [stderr]    Compiling futures v0.3.25
[INFO] [stderr]    Compiling tokio-native-tls v0.3.0
[INFO] [stderr]    Compiling tokio-util v0.7.4
[INFO] [stderr]    Compiling async-tungstenite v0.18.0
[INFO] [stderr]    Compiling bincode v1.3.3
[INFO] [stderr]    Compiling hakuban v0.7.3 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 26.69s
[INFO] running `Command { std: "docker" "inspect" "767de3831404c2f5c07c338a761d716d83fb316c30adf1e77c1deda4a7210ee8", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "767de3831404c2f5c07c338a761d716d83fb316c30adf1e77c1deda4a7210ee8", kill_on_drop: false }`
[INFO] [stdout] 767de3831404c2f5c07c338a761d716d83fb316c30adf1e77c1deda4a7210ee8
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-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=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" "+beta-2023-04-20" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] dab51024419b44df40b66bb48f9a916a2d63fc1f968f3658755845bd247554d9
[INFO] running `Command { std: "docker" "start" "-a" "dab51024419b44df40b66bb48f9a916a2d63fc1f968f3658755845bd247554d9", kill_on_drop: false }`
[INFO] [stderr]    Compiling syn v1.0.107
[INFO] [stderr]    Compiling tokio v1.23.0
[INFO] [stderr]    Compiling crossbeam-utils v0.8.14
[INFO] [stderr]    Compiling getrandom v0.2.8
[INFO] [stderr]    Compiling memoffset v0.7.1
[INFO] [stderr]    Compiling crossbeam-epoch v0.9.13
[INFO] [stderr]    Compiling rayon-core v1.10.1
[INFO] [stderr]    Compiling indexmap v1.9.2
[INFO] [stderr]    Compiling hashbrown v0.12.3
[INFO] [stderr]    Compiling sysinfo v0.18.2
[INFO] [stderr]    Compiling unsafe-libyaml v0.2.5
[INFO] [stderr]    Compiling permutations v0.1.1
[INFO] [stderr]    Compiling colored v2.0.0
[INFO] [stderr]    Compiling rand_core v0.6.4
[INFO] [stderr]    Compiling rand_chacha v0.3.1
[INFO] [stderr]    Compiling rand v0.8.5
[INFO] [stderr]    Compiling crossbeam-channel v0.5.6
[INFO] [stderr]    Compiling crossbeam-deque v0.8.2
[INFO] [stderr]    Compiling rayon v1.6.1
[INFO] [stderr]    Compiling tokio-macros v1.8.2
[INFO] [stderr]    Compiling openssl-macros v0.1.0
[INFO] [stderr]    Compiling serde_derive v1.0.152
[INFO] [stderr]    Compiling futures-macro v0.3.25
[INFO] [stderr]    Compiling thiserror-impl v1.0.38
[INFO] [stderr]    Compiling async-stream-impl v0.3.3
[INFO] [stderr]    Compiling openssl v0.10.45
[INFO] [stderr]    Compiling async-stream v0.3.3
[INFO] [stderr]    Compiling futures-util v0.3.25
[INFO] [stderr]    Compiling thiserror v1.0.38
[INFO] [stderr]    Compiling serde v1.0.152
[INFO] [stderr]    Compiling native-tls v0.2.11
[INFO] [stderr]    Compiling tungstenite v0.17.3
[INFO] [stderr]    Compiling futures-executor v0.3.25
[INFO] [stderr]    Compiling futures v0.3.25
[INFO] [stderr]    Compiling tokio-native-tls v0.3.0
[INFO] [stderr]    Compiling tokio-util v0.7.4
[INFO] [stderr]    Compiling tokio-stream v0.1.11
[INFO] [stderr]    Compiling async-tungstenite v0.18.0
[INFO] [stderr]    Compiling tokio-test v0.4.2
[INFO] [stderr]    Compiling serde_json v1.0.91
[INFO] [stderr]    Compiling bincode v1.3.3
[INFO] [stderr]    Compiling serde_yaml v0.9.16
[INFO] [stderr]    Compiling hakuban v0.7.3 (/opt/rustwide/workdir)
[INFO] [stdout] warning: struct `Shuffle` is never constructed
[INFO] [stdout]  --> tests/common/shuffler.rs:8:12
[INFO] [stdout]   |
[INFO] [stdout] 8 | pub struct Shuffle<T: Clone + Sync + Send + 'static> {
[INFO] [stdout]   |            ^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `Task` is never constructed
[INFO] [stdout]   --> tests/common/shuffler.rs:30:12
[INFO] [stdout]    |
[INFO] [stdout] 30 | pub struct Task {
[INFO] [stdout]    |            ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated items `new`, `task`, `setup`, and `run` are never used
[INFO] [stdout]   --> tests/common/shuffler.rs:41:9
[INFO] [stdout]    |
[INFO] [stdout] 40 | impl<T: Clone + Sync + Send + 'static> Shuffle<T> {
[INFO] [stdout]    | ------------------------------------------------- associated items in this implementation
[INFO] [stdout] 41 |     pub fn new(fuzzy_barrier_count: usize) -> Shuffle<T> {
[INFO] [stdout]    |            ^^^
[INFO] [stdout] ...
[INFO] [stdout] 45 |     pub fn task<R: Future<Output = Result<(), Box<dyn Error + Send + Sync>>> + Send + Sync + 'static>(
[INFO] [stdout]    |            ^^^^
[INFO] [stdout] ...
[INFO] [stdout] 58 |     pub fn setup<R: Future<Output = Result<T, Box<dyn Error + Send + Sync>>> + Send + Sync + 'static>(
[INFO] [stdout]    |            ^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 65 |     pub async fn run(self, timeout: Duration) -> Result<(), Box<dyn Error + Sync + Send>> {
[INFO] [stdout]    |                  ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: methods `fuzzy_barrier` and `barrier` are never used
[INFO] [stdout]    --> tests/common/shuffler.rs:164:15
[INFO] [stdout]     |
[INFO] [stdout] 163 | impl Task {
[INFO] [stdout]     | --------- methods in this implementation
[INFO] [stdout] 164 |     pub async fn fuzzy_barrier(&mut self) {
[INFO] [stdout]     |                  ^^^^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 178 |     pub async fn barrier(&mut self) {
[INFO] [stdout]     |                  ^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `teardown` is never read
[INFO] [stdout]   --> tests/common/shuffler.rs:24:2
[INFO] [stdout]    |
[INFO] [stdout] 8  | pub struct Shuffle<T: Clone + Sync + Send + 'static> {
[INFO] [stdout]    |            ------- field in this struct
[INFO] [stdout] ...
[INFO] [stdout] 24 |     teardown: Option<Box<dyn Fn(T) -> Box<dyn Future<Output = Result<(), Box<dyn Error>>>>>>,
[INFO] [stdout]    |     ^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 4 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 29.03s
[INFO] running `Command { std: "docker" "inspect" "dab51024419b44df40b66bb48f9a916a2d63fc1f968f3658755845bd247554d9", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "dab51024419b44df40b66bb48f9a916a2d63fc1f968f3658755845bd247554d9", kill_on_drop: false }`
[INFO] [stdout] dab51024419b44df40b66bb48f9a916a2d63fc1f968f3658755845bd247554d9
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-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=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" "+beta-2023-04-20" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] 6ee77b07f07b20f6c2ffdb7294965d77997b6fc874dbd6388c9c3d9a3a14e601
[INFO] running `Command { std: "docker" "start" "-a" "6ee77b07f07b20f6c2ffdb7294965d77997b6fc874dbd6388c9c3d9a3a14e601", kill_on_drop: false }`
[INFO] [stderr] warning: field `teardown` is never read
[INFO] [stderr]   --> tests/common/shuffler.rs:24:2
[INFO] [stderr]    |
[INFO] [stderr] 8  | pub struct Shuffle<T: Clone + Sync + Send + 'static> {
[INFO] [stderr]    |            ------- field in this struct
[INFO] [stderr] ...
[INFO] [stderr] 24 |     teardown: Option<Box<dyn Fn(T) -> Box<dyn Future<Output = Result<(), Box<dyn Error>>>>>>,
[INFO] [stderr]    |     ^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(dead_code)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: struct `Shuffle` is never constructed
[INFO] [stderr]  --> tests/common/shuffler.rs:8:12
[INFO] [stderr]   |
[INFO] [stderr] 8 | pub struct Shuffle<T: Clone + Sync + Send + 'static> {
[INFO] [stderr]   |            ^^^^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: `#[warn(dead_code)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: struct `Task` is never constructed
[INFO] [stderr]   --> tests/common/shuffler.rs:30:12
[INFO] [stderr]    |
[INFO] [stderr] 30 | pub struct Task {
[INFO] [stderr]    |            ^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: associated items `new`, `task`, `setup`, and `run` are never used
[INFO] [stderr]   --> tests/common/shuffler.rs:41:9
[INFO] [stderr]    |
[INFO] [stderr] 40 | impl<T: Clone + Sync + Send + 'static> Shuffle<T> {
[INFO] [stderr]    | ------------------------------------------------- associated items in this implementation
[INFO] [stderr] 41 |     pub fn new(fuzzy_barrier_count: usize) -> Shuffle<T> {
[INFO] [stderr]    |            ^^^
[INFO] [stderr] ...
[INFO] [stderr] 45 |     pub fn task<R: Future<Output = Result<(), Box<dyn Error + Send + Sync>>> + Send + Sync + 'static>(
[INFO] [stderr]    |            ^^^^
[INFO] [stderr] ...
[INFO] [stderr] 58 |     pub fn setup<R: Future<Output = Result<T, Box<dyn Error + Send + Sync>>> + Send + Sync + 'static>(
[INFO] [stderr]    |            ^^^^^
[INFO] [stderr] ...
[INFO] [stderr] 65 |     pub async fn run(self, timeout: Duration) -> Result<(), Box<dyn Error + Sync + Send>> {
[INFO] [stderr]    |                  ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: methods `fuzzy_barrier` and `barrier` are never used
[INFO] [stderr]    --> tests/common/shuffler.rs:164:15
[INFO] [stderr]     |
[INFO] [stderr] 163 | impl Task {
[INFO] [stderr]     | --------- methods in this implementation
[INFO] [stderr] 164 |     pub async fn fuzzy_barrier(&mut self) {
[INFO] [stderr]     |                  ^^^^^^^^^^^^^
[INFO] [stderr] ...
[INFO] [stderr] 178 |     pub async fn barrier(&mut self) {
[INFO] [stderr]     |                  ^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: `hakuban` (test "basic") generated 1 warning
[INFO] [stderr] warning: `hakuban` (test "performance") generated 4 warnings
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.25s
[INFO] [stderr]      Running unittests src/lib.rs (/opt/rustwide/target/debug/deps/hakuban-2bdb54d835606528)
[INFO] [stdout] 
[INFO] [stdout] running 9 tests
[INFO] [stdout] test diff::tests::can_diff_and_patch_wiki_titles ... ignored
[INFO] [stdout] test descriptor::tests::object_descriptor_can_be_serialized_and_deserialized_with_json ... ok
[INFO] [stdout] test descriptor::tests::tag_descriptor_can_be_constructed_from_whatever_is_convertible_to_json ... ok
[INFO] [stdout] test diff::tests::can_diff_and_patch_select_data_sets ... ok
[INFO] [stdout] test descriptor::tests::tag_descriptor_can_be_serialized_and_deserialized_with_json ... ok
[INFO] [stdout] test message::tests::can_serialize_and_deserialize_message ... ok
[INFO] [stdout] test diff::tests::can_diff_and_patch_random_data_sets_of_varying_length ... ok
[INFO] [stdout] test diff::tests::can_diff_and_patch_data_sets_contstructed_by_copy_pasting_from_the_origin ... ok
[INFO] [stdout] test diff::tests::can_diff_and_patch_random_data_sets_of_fixed_length ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 8 passed; 0 failed; 1 ignored; 0 measured; 0 filtered out; finished in 0.03s
[INFO] [stdout] 
[INFO] [stderr]      Running unittests src/bin/hakuban-router.rs (/opt/rustwide/target/debug/deps/hakuban_router-2caa924e2f011cea)
[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]      Running tests/basic.rs (/opt/rustwide/target/debug/deps/basic-f542140070c7fc73)
[INFO] [stdout] 
[INFO] [stdout] running 14 tests
[INFO] [stderr] error: test failed, to rerun pass `--test basic`
[INFO] [stderr] 
[INFO] [stderr] Caused by:
[INFO] [stderr]   process didn't exit successfully: `/opt/rustwide/target/debug/deps/basic-f542140070c7fc73` (signal: 6, SIGABRT: process abort signal)
[INFO] running `Command { std: "docker" "inspect" "6ee77b07f07b20f6c2ffdb7294965d77997b6fc874dbd6388c9c3d9a3a14e601", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "6ee77b07f07b20f6c2ffdb7294965d77997b6fc874dbd6388c9c3d9a3a14e601", kill_on_drop: false }`
[INFO] [stdout] 6ee77b07f07b20f6c2ffdb7294965d77997b6fc874dbd6388c9c3d9a3a14e601
