[INFO] cloning repository https://github.com/yunta-mb/hakuban
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/yunta-mb/hakuban" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fyunta-mb%2Fhakuban", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fyunta-mb%2Fhakuban'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 4c600f7bc8bd5c385cd8650f338e4bc5fdbf44fc
[INFO] testing yunta-mb/hakuban against try#28f95933dc0727396c07b48d0a8cb5211b7fb472 for pr-154065-2
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fyunta-mb%2Fhakuban" "/workspace/builds/worker-4-tc2/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-4-tc2/source'...
[INFO] [stderr] done.
[INFO] started tweaking git repo https://github.com/yunta-mb/hakuban
[INFO] finished tweaking git repo https://github.com/yunta-mb/hakuban
[INFO] tweaked toml for git repo https://github.com/yunta-mb/hakuban written to /workspace/builds/worker-4-tc2/source/Cargo.toml
[INFO] validating manifest of git repo https://github.com/yunta-mb/hakuban on toolchain 28f95933dc0727396c07b48d0a8cb5211b7fb472
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+28f95933dc0727396c07b48d0a8cb5211b7fb472" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate git repo https://github.com/yunta-mb/hakuban 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" "+28f95933dc0727396c07b48d0a8cb5211b7fb472" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
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[INFO] [stdout] 6c1b08076e2cbb907ecd919ef7b7f83aa6e00891aa2c589869217cd6053479a0
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[INFO] running `Command { std: "docker" "inspect" "6c1b08076e2cbb907ecd919ef7b7f83aa6e00891aa2c589869217cd6053479a0", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "6c1b08076e2cbb907ecd919ef7b7f83aa6e00891aa2c589869217cd6053479a0", kill_on_drop: false }`
[INFO] [stdout] 6c1b08076e2cbb907ecd919ef7b7f83aa6e00891aa2c589869217cd6053479a0
[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=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:d429b63d4308055ea97f60fb1d3dfca48854a00942f1bd2ad806beaf015945ec" "/opt/rustwide/cargo-home/bin/cargo" "+28f95933dc0727396c07b48d0a8cb5211b7fb472" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 4ca0d62465675853dc059db28c8c8840a28604ee28982520c87a6505591129c9
[INFO] running `Command { std: "docker" "start" "-a" "4ca0d62465675853dc059db28c8c8840a28604ee28982520c87a6505591129c9", kill_on_drop: false }`
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[INFO] [stdout] warning: unused import: `Display`
[INFO] [stdout]  --> tests/common/shuffler.rs:4:15
[INFO] [stdout]   |
[INFO] [stdout] 4 |     fmt::{Debug, Display},
[INFO] [stdout]   |                  ^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `Display`
[INFO] [stdout]  --> tests/common/shuffler.rs:4:15
[INFO] [stdout]   |
[INFO] [stdout] 4 |     fmt::{Debug, Display},
[INFO] [stdout]   |                  ^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `Display`
[INFO] [stdout]  --> tests/common/shuffler.rs:4:15
[INFO] [stdout]   |
[INFO] [stdout] 4 |     fmt::{Debug, Display},
[INFO] [stdout]   |                  ^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused imports: `AtomicI64` and `AtomicU64`
[INFO] [stdout]  --> tests/basic.rs:8:12
[INFO] [stdout]   |
[INFO] [stdout] 8 |         atomic::{AtomicI64, AtomicU64},
[INFO] [stdout]   |                  ^^^^^^^^^  ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: enum `Topology` is never used
[INFO] [stdout]   --> tests/common/network.rs:13:10
[INFO] [stdout]    |
[INFO] [stdout] 13 | pub enum Topology {
[INFO] [stdout]    |          ^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated items `setup_network` and `teardown_network` are never used
[INFO] [stdout]   --> tests/common/network.rs:20:15
[INFO] [stdout]    |
[INFO] [stdout] 19 | impl Topology {
[INFO] [stdout]    | ------------- associated items in this implementation
[INFO] [stdout] 20 |     pub async fn setup_network(self, task_count: usize) -> Vec<Arc<Router>> {
[INFO] [stdout]    |                  ^^^^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 78 |     pub async fn teardown_network(routers: Vec<Arc<Router>>) -> std::io::Result<()> {
[INFO] [stdout]    |                  ^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: method `exit` is never used
[INFO] [stdout]   --> tests/common/router.rs:99:15
[INFO] [stdout]    |
[INFO] [stdout] 25 | impl Router {
[INFO] [stdout]    | ----------- method in this implementation
[INFO] [stdout] ...
[INFO] [stdout] 99 |     pub async fn exit(self: Arc<Self>) -> std::io::Result<()> {
[INFO] [stdout]    |                  ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: type alias `DynError` is never used
[INFO] [stdout]   --> tests/common/shuffler.rs:15:6
[INFO] [stdout]    |
[INFO] [stdout] 15 | type DynError = Box<dyn Error + Send + Sync + 'static>;
[INFO] [stdout]    |      ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `Shuffle` is never constructed
[INFO] [stdout]   --> tests/common/shuffler.rs:17:12
[INFO] [stdout]    |
[INFO] [stdout] 17 | pub struct Shuffle<T: Clone + Sync + Send + 'static, V: Clone + Sync + Send + Debug + 'static> {
[INFO] [stdout]    |            ^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `Task` is never constructed
[INFO] [stdout]   --> tests/common/shuffler.rs:26:12
[INFO] [stdout]    |
[INFO] [stdout] 26 | pub struct Task {
[INFO] [stdout]    |            ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated items `new`, `task`, `setup`, `teardown`, and `run` are never used
[INFO] [stdout]   --> tests/common/shuffler.rs:37:9
[INFO] [stdout]    |
[INFO] [stdout] 36 | impl<T: Clone + Sync + Send + 'static, V: Clone + Sync + Send + Debug + 'static> Shuffle<T, V> {
[INFO] [stdout]    | ---------------------------------------------------------------------------------------------- associated items in this implementation
[INFO] [stdout] 37 |     pub fn new(fuzzy_barrier_count: usize, variants: Vec<V>) -> Shuffle<T, V> {
[INFO] [stdout]    |            ^^^
[INFO] [stdout] ...
[INFO] [stdout] 41 |     pub fn task<R: Future<Output = Result<(), DynError>> + Send + Sync + 'static>(
[INFO] [stdout]    |            ^^^^
[INFO] [stdout] ...
[INFO] [stdout] 50 |     pub fn setup<Fut: Future<Output = Result<T, DynError>> + Send + Sync + 'static>(
[INFO] [stdout]    |            ^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 58 |     pub fn teardown<E: Error + Sync + Send + 'static, Fut: Future<Output = Result<(), E>> + Send + Sync + 'static>(
[INFO] [stdout]    |            ^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 67 |     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: variants `SingleRouter` and `TwoStackedRouters` are never constructed
[INFO] [stdout]   --> tests/common/network.rs:14:2
[INFO] [stdout]    |
[INFO] [stdout] 13 | pub enum Topology {
[INFO] [stdout]    |          -------- variants in this enum
[INFO] [stdout] 14 |     SingleRouter,
[INFO] [stdout]    |     ^^^^^^^^^^^^
[INFO] [stdout] 15 |     TwoStackedRouters,
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `Topology` has derived impls for the traits `Debug` and `Clone`, but these are intentionally ignored during dead code analysis
[INFO] [stdout]    = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: fields `task_id`, `barriers`, `next_barrier`, `history`, and `tasks_count` are never read
[INFO] [stdout]   --> tests/common/shuffler.rs:28:2
[INFO] [stdout]    |
[INFO] [stdout] 26 | pub struct Task {
[INFO] [stdout]    |            ---- fields in this struct
[INFO] [stdout] 27 |     pub name: &'static str,
[INFO] [stdout] 28 |     task_id: usize,
[INFO] [stdout]    |     ^^^^^^^
[INFO] [stdout] 29 |     standard_barrier: Arc<tokio::sync::Barrier>,
[INFO] [stdout] 30 |     barriers: Arc<Vec<tokio::sync::Barrier>>,
[INFO] [stdout]    |     ^^^^^^^^
[INFO] [stdout] 31 |     next_barrier: usize,
[INFO] [stdout]    |     ^^^^^^^^^^^^
[INFO] [stdout] 32 |     history: usize,
[INFO] [stdout]    |     ^^^^^^^
[INFO] [stdout] 33 |     tasks_count: usize,
[INFO] [stdout]    |     ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: method `fuzzy_barrier` is never used
[INFO] [stdout]    --> tests/common/shuffler.rs:164:15
[INFO] [stdout]     |
[INFO] [stdout] 163 | impl Task {
[INFO] [stdout]     | --------- method in this implementation
[INFO] [stdout] 164 |     pub async fn fuzzy_barrier(&mut self) {
[INFO] [stdout]     |                  ^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 44.93s
[INFO] running `Command { std: "docker" "inspect" "4ca0d62465675853dc059db28c8c8840a28604ee28982520c87a6505591129c9", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "4ca0d62465675853dc059db28c8c8840a28604ee28982520c87a6505591129c9", kill_on_drop: false }`
[INFO] [stdout] 4ca0d62465675853dc059db28c8c8840a28604ee28982520c87a6505591129c9
[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=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:d429b63d4308055ea97f60fb1d3dfca48854a00942f1bd2ad806beaf015945ec" "/opt/rustwide/cargo-home/bin/cargo" "+28f95933dc0727396c07b48d0a8cb5211b7fb472" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] 948a2178c1268278b3a171d3d4c08d5cdf375c4c6afe6441180e0e514eb766ab
[INFO] running `Command { std: "docker" "start" "-a" "948a2178c1268278b3a171d3d4c08d5cdf375c4c6afe6441180e0e514eb766ab", kill_on_drop: false }`
[INFO] [stderr] warning: unused import: `Display`
[INFO] [stderr]  --> tests/common/shuffler.rs:4:15
[INFO] [stderr]   |
[INFO] [stderr] 4 |     fmt::{Debug, Display},
[INFO] [stderr]   |                  ^^^^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: `#[warn(unused_imports)]` (part of `#[warn(unused)]`) on by default
[INFO] [stderr] 
[INFO] [stderr] warning: enum `Topology` is never used
[INFO] [stderr]   --> tests/common/network.rs:13:10
[INFO] [stderr]    |
[INFO] [stderr] 13 | pub enum Topology {
[INFO] [stderr]    |          ^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stderr] 
[INFO] [stderr] warning: associated items `setup_network` and `teardown_network` are never used
[INFO] [stderr]   --> tests/common/network.rs:20:15
[INFO] [stderr]    |
[INFO] [stderr] 19 | impl Topology {
[INFO] [stderr]    | ------------- associated items in this implementation
[INFO] [stderr] 20 |     pub async fn setup_network(self, task_count: usize) -> Vec<Arc<Router>> {
[INFO] [stderr]    |                  ^^^^^^^^^^^^^
[INFO] [stderr] ...
[INFO] [stderr] 78 |     pub async fn teardown_network(routers: Vec<Arc<Router>>) -> std::io::Result<()> {
[INFO] [stderr]    |                  ^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: method `exit` is never used
[INFO] [stderr]   --> tests/common/router.rs:99:15
[INFO] [stderr]    |
[INFO] [stderr] 25 | impl Router {
[INFO] [stderr]    | ----------- method in this implementation
[INFO] [stderr] ...
[INFO] [stderr] 99 |     pub async fn exit(self: Arc<Self>) -> std::io::Result<()> {
[INFO] [stderr]    |                  ^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: type alias `DynError` is never used
[INFO] [stderr]   --> tests/common/shuffler.rs:15:6
[INFO] [stderr]    |
[INFO] [stderr] 15 | type DynError = Box<dyn Error + Send + Sync + 'static>;
[INFO] [stderr]    |      ^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: struct `Shuffle` is never constructed
[INFO] [stderr]   --> tests/common/shuffler.rs:17:12
[INFO] [stderr]    |
[INFO] [stderr] 17 | pub struct Shuffle<T: Clone + Sync + Send + 'static, V: Clone + Sync + Send + Debug + 'static> {
[INFO] [stderr]    |            ^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: struct `Task` is never constructed
[INFO] [stderr]   --> tests/common/shuffler.rs:26:12
[INFO] [stderr]    |
[INFO] [stderr] 26 | pub struct Task {
[INFO] [stderr]    |            ^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: associated items `new`, `task`, `setup`, `teardown`, and `run` are never used
[INFO] [stderr]   --> tests/common/shuffler.rs:37:9
[INFO] [stderr]    |
[INFO] [stderr] 36 | impl<T: Clone + Sync + Send + 'static, V: Clone + Sync + Send + Debug + 'static> Shuffle<T, V> {
[INFO] [stderr]    | ---------------------------------------------------------------------------------------------- associated items in this implementation
[INFO] [stderr] 37 |     pub fn new(fuzzy_barrier_count: usize, variants: Vec<V>) -> Shuffle<T, V> {
[INFO] [stderr]    |            ^^^
[INFO] [stderr] ...
[INFO] [stderr] 41 |     pub fn task<R: Future<Output = Result<(), DynError>> + Send + Sync + 'static>(
[INFO] [stderr]    |            ^^^^
[INFO] [stderr] ...
[INFO] [stderr] 50 |     pub fn setup<Fut: Future<Output = Result<T, DynError>> + Send + Sync + 'static>(
[INFO] [stderr]    |            ^^^^^
[INFO] [stderr] ...
[INFO] [stderr] 58 |     pub fn teardown<E: Error + Sync + Send + 'static, Fut: Future<Output = Result<(), E>> + Send + Sync + 'static>(
[INFO] [stderr]    |            ^^^^^^^^
[INFO] [stderr] ...
[INFO] [stderr] 67 |     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: variants `SingleRouter` and `TwoStackedRouters` are never constructed
[INFO] [stderr]   --> tests/common/network.rs:14:2
[INFO] [stderr]    |
[INFO] [stderr] 13 | pub enum Topology {
[INFO] [stderr]    |          -------- variants in this enum
[INFO] [stderr] 14 |     SingleRouter,
[INFO] [stderr]    |     ^^^^^^^^^^^^
[INFO] [stderr] 15 |     TwoStackedRouters,
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: `Topology` has derived impls for the traits `Debug` and `Clone`, but these are intentionally ignored during dead code analysis
[INFO] [stderr]    = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stderr] 
[INFO] [stderr] warning: fields `task_id`, `barriers`, `next_barrier`, `history`, and `tasks_count` are never read
[INFO] [stderr]   --> tests/common/shuffler.rs:28:2
[INFO] [stderr]    |
[INFO] [stderr] 26 | pub struct Task {
[INFO] [stderr]    |            ---- fields in this struct
[INFO] [stderr] 27 |     pub name: &'static str,
[INFO] [stderr] 28 |     task_id: usize,
[INFO] [stderr]    |     ^^^^^^^
[INFO] [stderr] 29 |     standard_barrier: Arc<tokio::sync::Barrier>,
[INFO] [stderr] 30 |     barriers: Arc<Vec<tokio::sync::Barrier>>,
[INFO] [stderr]    |     ^^^^^^^^
[INFO] [stderr] 31 |     next_barrier: usize,
[INFO] [stderr]    |     ^^^^^^^^^^^^
[INFO] [stderr] 32 |     history: usize,
[INFO] [stderr]    |     ^^^^^^^
[INFO] [stderr] 33 |     tasks_count: usize,
[INFO] [stderr]    |     ^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: method `fuzzy_barrier` is never used
[INFO] [stderr]    --> tests/common/shuffler.rs:164:15
[INFO] [stderr]     |
[INFO] [stderr] 163 | impl Task {
[INFO] [stderr]     | --------- method in this implementation
[INFO] [stderr] 164 |     pub async fn fuzzy_barrier(&mut self) {
[INFO] [stderr]     |                  ^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused imports: `AtomicI64` and `AtomicU64`
[INFO] [stderr]  --> tests/basic.rs:8:12
[INFO] [stderr]   |
[INFO] [stderr] 8 |         atomic::{AtomicI64, AtomicU64},
[INFO] [stderr]   |                  ^^^^^^^^^  ^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: `hakuban` (test "performance") generated 9 warnings (run `cargo fix --test "performance" -p hakuban` to apply 1 suggestion)
[INFO] [stderr] warning: `hakuban` (test "introspective") generated 4 warnings (1 duplicate)
[INFO] [stderr] warning: `hakuban` (test "basic") generated 2 warnings (1 duplicate) (run `cargo fix --test "basic" -p hakuban` to apply 1 suggestion)
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 0.44s
[INFO] [stderr]      Running unittests src/lib.rs (/opt/rustwide/target/debug/deps/hakuban-5324fdd259dd3569)
[INFO] [stdout] 
[INFO] [stdout] running 8 tests
[INFO] [stdout] test connection::diff::tests::can_diff_and_patch_wiki_titles ... ignored
[INFO] [stdout] test descriptor::tests::tag_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 descriptor::tests::object_descriptor_can_be_serialized_and_deserialized_with_json ... ok
[INFO] [stdout] test connection::diff::tests::can_diff_and_patch_data_sets_contstructed_by_copy_pasting_from_the_origin ... ok
[INFO] [stdout] test connection::diff::tests::can_diff_and_patch_random_data_sets_of_varying_length ... ok
[INFO] [stdout] test connection::diff::tests::can_diff_and_patch_random_data_sets_of_fixed_length ... ok
[INFO] [stdout] test connection::diff::tests::can_diff_and_patch_select_data_sets ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 7 passed; 0 failed; 1 ignored; 0 measured; 0 filtered out; finished in 0.32s
[INFO] [stdout] 
[INFO] [stderr]      Running unittests src/bin/hakuban-router.rs (/opt/rustwide/target/debug/deps/hakuban_router-849a16a40f4e2184)
[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-241265d93610da6e)
[INFO] [stdout] 
[INFO] [stdout] running 25 tests
[INFO] [stdout] test local_instant_object_state_sink_drop_panic ... ok
[INFO] [stdout] test local_desynchronize_on_object_state_sink_drop ... ok
[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-241265d93610da6e` (signal: 6, SIGABRT: process abort signal)
[INFO] running `Command { std: "docker" "inspect" "948a2178c1268278b3a171d3d4c08d5cdf375c4c6afe6441180e0e514eb766ab", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "948a2178c1268278b3a171d3d4c08d5cdf375c4c6afe6441180e0e514eb766ab", kill_on_drop: false }`
[INFO] [stdout] 948a2178c1268278b3a171d3d4c08d5cdf375c4c6afe6441180e0e514eb766ab
