[INFO] fetching crate hakuban 0.8.4...
[INFO] testing hakuban-0.8.4 against master#2fd6efc32704647e64d3d646d21c4c68eae100e4 for pr-149852-1
[INFO] extracting crate hakuban 0.8.4 into /workspace/builds/worker-3-tc1/source
[INFO] started tweaking crates.io crate hakuban 0.8.4
[INFO] removed 0 missing examples
[INFO] removed 0 missing tests
[INFO] finished tweaking crates.io crate hakuban 0.8.4
[INFO] tweaked toml for crates.io crate hakuban 0.8.4 written to /workspace/builds/worker-3-tc1/source/Cargo.toml
[INFO] validating manifest of crates.io crate hakuban 0.8.4 on toolchain 2fd6efc32704647e64d3d646d21c4c68eae100e4
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+2fd6efc32704647e64d3d646d21c4c68eae100e4" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate crates.io crate hakuban 0.8.4 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" "+2fd6efc32704647e64d3d646d21c4c68eae100e4" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]  Downloading crates ...
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[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@sha256:98afbf2d16093dec2546ff8915fddc74e65664aa03fc460b3712b1c2c54a33e4" "/opt/rustwide/cargo-home/bin/cargo" "+2fd6efc32704647e64d3d646d21c4c68eae100e4" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 76b9abfa58be182d15d30fd745445a081ece991791e8172f040cf715ff1aaade
[INFO] running `Command { std: "docker" "start" "-a" "76b9abfa58be182d15d30fd745445a081ece991791e8172f040cf715ff1aaade", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "76b9abfa58be182d15d30fd745445a081ece991791e8172f040cf715ff1aaade", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "76b9abfa58be182d15d30fd745445a081ece991791e8172f040cf715ff1aaade", kill_on_drop: false }`
[INFO] [stdout] 76b9abfa58be182d15d30fd745445a081ece991791e8172f040cf715ff1aaade
[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=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@sha256:98afbf2d16093dec2546ff8915fddc74e65664aa03fc460b3712b1c2c54a33e4" "/opt/rustwide/cargo-home/bin/cargo" "+2fd6efc32704647e64d3d646d21c4c68eae100e4" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 02ef4b208e237601cbf155c8e1a5fe7c4b4c05e5571cafd99a601886f3a94fd2
[INFO] running `Command { std: "docker" "start" "-a" "02ef4b208e237601cbf155c8e1a5fe7c4b4c05e5571cafd99a601886f3a94fd2", kill_on_drop: false }`
[INFO] [stderr]    Compiling proc-macro2 v1.0.101
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[INFO] [stderr]    Compiling hakuban v0.8.4 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 57.28s
[INFO] running `Command { std: "docker" "inspect" "02ef4b208e237601cbf155c8e1a5fe7c4b4c05e5571cafd99a601886f3a94fd2", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "02ef4b208e237601cbf155c8e1a5fe7c4b4c05e5571cafd99a601886f3a94fd2", kill_on_drop: false }`
[INFO] [stdout] 02ef4b208e237601cbf155c8e1a5fe7c4b4c05e5571cafd99a601886f3a94fd2
[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=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@sha256:98afbf2d16093dec2546ff8915fddc74e65664aa03fc460b3712b1c2c54a33e4" "/opt/rustwide/cargo-home/bin/cargo" "+2fd6efc32704647e64d3d646d21c4c68eae100e4" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] fa028977bedec9157c43f8473fa8a1b0b4ab32e2cb5565d803606e91cbd1e17d
[INFO] running `Command { std: "docker" "start" "-a" "fa028977bedec9157c43f8473fa8a1b0b4ab32e2cb5565d803606e91cbd1e17d", kill_on_drop: false }`
[INFO] [stderr]    Compiling syn v2.0.106
[INFO] [stderr]    Compiling libc v0.2.175
[INFO] [stderr]    Compiling futures-core v0.3.31
[INFO] [stderr]    Compiling getrandom v0.3.3
[INFO] [stderr]    Compiling cfg_aliases v0.2.1
[INFO] [stderr]    Compiling colored v3.0.0
[INFO] [stderr]    Compiling permutations v0.1.1
[INFO] [stderr]    Compiling nix v0.30.1
[INFO] [stderr]    Compiling futures-channel v0.3.31
[INFO] [stderr]    Compiling parking_lot_core v0.9.11
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[INFO] [stderr]    Compiling openssl-sys v0.9.109
[INFO] [stderr]    Compiling hostname v0.4.1
[INFO] [stderr]    Compiling sysinfo v0.34.2
[INFO] [stderr]    Compiling parking_lot v0.12.4
[INFO] [stderr]    Compiling rand_core v0.9.3
[INFO] [stderr]    Compiling rand_chacha v0.9.0
[INFO] [stderr]    Compiling rand v0.9.2
[INFO] [stderr]    Compiling synstructure v0.13.2
[INFO] [stderr]    Compiling zerofrom-derive v0.1.6
[INFO] [stderr]    Compiling yoke-derive v0.8.0
[INFO] [stderr]    Compiling zerovec-derive v0.11.1
[INFO] [stderr]    Compiling displaydoc v0.2.5
[INFO] [stderr]    Compiling tokio-macros v2.5.0
[INFO] [stderr]    Compiling openssl-macros v0.1.1
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[INFO] [stderr]    Compiling serde_derive v1.0.219
[INFO] [stderr]    Compiling thiserror-impl v2.0.16
[INFO] [stderr]    Compiling clap_derive v4.5.47
[INFO] [stderr]    Compiling async-stream-impl v0.3.6
[INFO] [stderr]    Compiling openssl v0.10.73
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[INFO] [stderr]    Compiling tokio v1.47.1
[INFO] [stderr]    Compiling futures-util v0.3.31
[INFO] [stderr]    Compiling zerofrom v0.1.6
[INFO] [stderr]    Compiling yoke v0.8.0
[INFO] [stderr]    Compiling zerovec v0.11.4
[INFO] [stderr]    Compiling zerotrie v0.2.2
[INFO] [stderr]    Compiling thiserror v2.0.16
[INFO] [stderr]    Compiling clap v4.5.47
[INFO] [stderr]    Compiling serde v1.0.219
[INFO] [stderr]    Compiling tinystr v0.8.1
[INFO] [stderr]    Compiling potential_utf v0.1.3
[INFO] [stderr]    Compiling icu_locale_core v2.0.0
[INFO] [stderr]    Compiling icu_collections v2.0.0
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[INFO] [stderr]    Compiling futures-executor v0.3.31
[INFO] [stderr]    Compiling icu_provider v2.0.0
[INFO] [stderr]    Compiling futures v0.3.31
[INFO] [stderr]    Compiling tungstenite v0.27.0
[INFO] [stderr]    Compiling icu_normalizer v2.0.0
[INFO] [stderr]    Compiling icu_properties v2.0.1
[INFO] [stderr]    Compiling idna_adapter v1.2.1
[INFO] [stderr]    Compiling idna v1.1.0
[INFO] [stderr]    Compiling tokio-native-tls v0.3.1
[INFO] [stderr]    Compiling tokio-stream v0.1.17
[INFO] [stderr]    Compiling async-tungstenite v0.31.0
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[INFO] [stderr]    Compiling serde_json v1.0.143
[INFO] [stderr]    Compiling url v2.5.7
[INFO] [stderr]    Compiling hakuban v0.8.4 (/opt/rustwide/workdir)
[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: 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: 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 49.52s
[INFO] running `Command { std: "docker" "inspect" "fa028977bedec9157c43f8473fa8a1b0b4ab32e2cb5565d803606e91cbd1e17d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "fa028977bedec9157c43f8473fa8a1b0b4ab32e2cb5565d803606e91cbd1e17d", kill_on_drop: false }`
[INFO] [stdout] fa028977bedec9157c43f8473fa8a1b0b4ab32e2cb5565d803606e91cbd1e17d
[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=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@sha256:98afbf2d16093dec2546ff8915fddc74e65664aa03fc460b3712b1c2c54a33e4" "/opt/rustwide/cargo-home/bin/cargo" "+2fd6efc32704647e64d3d646d21c4c68eae100e4" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] 8333dfaf71b1371a773de19503609d9c918510ded9d05815772cb081c8ac0366
[INFO] running `Command { std: "docker" "start" "-a" "8333dfaf71b1371a773de19503609d9c918510ded9d05815772cb081c8ac0366", 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: 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: 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: `hakuban` (test "introspective") generated 4 warnings (run `cargo fix --test "introspective" -p hakuban` to apply 1 suggestion)
[INFO] [stderr] warning: `hakuban` (test "basic") generated 2 warnings (1 duplicate) (run `cargo fix --test "basic" -p hakuban` to apply 1 suggestion)
[INFO] [stderr] warning: `hakuban` (test "performance") generated 9 warnings (1 duplicate)
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 0.32s
[INFO] [stdout] 
[INFO] [stderr]      Running unittests src/lib.rs (/opt/rustwide/target/debug/deps/hakuban-a6c3b96873168271)
[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_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 descriptor::tests::tag_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] [stderr]      Running unittests src/bin/hakuban-router.rs (/opt/rustwide/target/debug/deps/hakuban_router-e62e4c45386091e7)
[INFO] [stdout] test connection::diff::tests::can_diff_and_patch_select_data_sets ... ok
[INFO] [stderr]      Running tests/basic.rs (/opt/rustwide/target/debug/deps/basic-a5acc37810413310)
[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] [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] [stdout] 
[INFO] [stdout] running 25 tests
[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-a5acc37810413310` (signal: 6, SIGABRT: process abort signal)
[INFO] running `Command { std: "docker" "inspect" "8333dfaf71b1371a773de19503609d9c918510ded9d05815772cb081c8ac0366", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "8333dfaf71b1371a773de19503609d9c918510ded9d05815772cb081c8ac0366", kill_on_drop: false }`
[INFO] [stdout] 8333dfaf71b1371a773de19503609d9c918510ded9d05815772cb081c8ac0366
