[INFO] fetching crate multi-tier-cache 0.5.2...
[INFO] testing multi-tier-cache-0.5.2 against master#c90bcb9571b7aab0d8beaa2ce8a998ffaf079d38 for pr-146098-8
[INFO] extracting crate multi-tier-cache 0.5.2 into /workspace/builds/worker-0-tc1/source
[INFO] started tweaking crates.io crate multi-tier-cache 0.5.2
[INFO] removed 0 missing examples
[INFO] removed 0 missing tests
[INFO] finished tweaking crates.io crate multi-tier-cache 0.5.2
[INFO] tweaked toml for crates.io crate multi-tier-cache 0.5.2 written to /workspace/builds/worker-0-tc1/source/Cargo.toml
[INFO] validating manifest of crates.io crate multi-tier-cache 0.5.2 on toolchain c90bcb9571b7aab0d8beaa2ce8a998ffaf079d38
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+c90bcb9571b7aab0d8beaa2ce8a998ffaf079d38" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate crates.io crate multi-tier-cache 0.5.2 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" "+c90bcb9571b7aab0d8beaa2ce8a998ffaf079d38" "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]  Downloading crates ...
[INFO] [stderr]   Downloaded backon v1.6.0
[INFO] [stderr]   Downloaded memcache v0.17.2
[INFO] [stderr]   Downloaded redis v0.32.7
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[INFO] [stdout] warning: unused import: `CacheManagerStats`
[INFO] [stdout]  --> tests/integration_basic.rs:8:39
[INFO] [stdout]   |
[INFO] [stdout] 8 | use multi_tier_cache::{CacheStrategy, CacheManagerStats};
[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 variable: `cache`
[INFO] [stdout]   --> tests/common/mod.rs:57:9
[INFO] [stdout]    |
[INFO] [stdout] 57 |     let cache = setup_cache_system().await?;
[INFO] [stdout]    |         ^^^^^ help: if this is intentional, prefix it with an underscore: `_cache`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `cache`
[INFO] [stdout]   --> tests/common/mod.rs:57:9
[INFO] [stdout]    |
[INFO] [stdout] 57 |     let cache = setup_cache_system().await?;
[INFO] [stdout]    |         ^^^^^ help: if this is intentional, prefix it with an underscore: `_cache`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `test_key_prefix` is never used
[INFO] [stdout]   --> tests/common/mod.rs:19:8
[INFO] [stdout]    |
[INFO] [stdout] 19 | pub fn test_key_prefix() -> String {
[INFO] [stdout]    |        ^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `setup_cache_with_invalidation` is never used
[INFO] [stdout]   --> tests/common/mod.rs:40:14
[INFO] [stdout]    |
[INFO] [stdout] 40 | pub async fn setup_cache_with_invalidation() -> Result<Arc<CacheManager>> {
[INFO] [stdout]    |              ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `cleanup_test_keys` is never used
[INFO] [stdout]   --> tests/common/mod.rs:56:14
[INFO] [stdout]    |
[INFO] [stdout] 56 | pub async fn cleanup_test_keys(prefix: &str) -> Result<()> {
[INFO] [stdout]    |              ^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `wait_for` is never used
[INFO] [stdout]    --> tests/common/mod.rs:133:14
[INFO] [stdout]     |
[INFO] [stdout] 133 | pub async fn wait_for<F>(mut condition: F, timeout_ms: u64) -> bool
[INFO] [stdout]     |              ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `Product` is never constructed
[INFO] [stdout]   --> tests/common/mod.rs:94:16
[INFO] [stdout]    |
[INFO] [stdout] 94 |     pub struct Product {
[INFO] [stdout]    |                ^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function `new` is never used
[INFO] [stdout]    --> tests/common/mod.rs:102:16
[INFO] [stdout]     |
[INFO] [stdout] 101 |     impl Product {
[INFO] [stdout]     |     ------------ associated function in this implementation
[INFO] [stdout] 102 |         pub fn new(id: u64) -> Self {
[INFO] [stdout]     |                ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `json_user` is never used
[INFO] [stdout]    --> tests/common/mod.rs:113:12
[INFO] [stdout]     |
[INFO] [stdout] 113 |     pub fn json_user(id: u64) -> serde_json::Value {
[INFO] [stdout]     |            ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `json_data_sized` is never used
[INFO] [stdout]    --> tests/common/mod.rs:123:12
[INFO] [stdout]     |
[INFO] [stdout] 123 |     pub fn json_data_sized(size_kb: usize) -> serde_json::Value {
[INFO] [stdout]     |            ^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `cache`
[INFO] [stdout]   --> tests/common/mod.rs:57:9
[INFO] [stdout]    |
[INFO] [stdout] 57 |     let cache = setup_cache_system().await?;
[INFO] [stdout]    |         ^^^^^ help: if this is intentional, prefix it with an underscore: `_cache`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `cache`
[INFO] [stdout]   --> tests/common/mod.rs:57:9
[INFO] [stdout]    |
[INFO] [stdout] 57 |     let cache = setup_cache_system().await?;
[INFO] [stdout]    |         ^^^^^ help: if this is intentional, prefix it with an underscore: `_cache`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `test_key_prefix` is never used
[INFO] [stdout]   --> tests/common/mod.rs:19:8
[INFO] [stdout]    |
[INFO] [stdout] 19 | pub fn test_key_prefix() -> String {
[INFO] [stdout]    |        ^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `setup_cache_with_invalidation` is never used
[INFO] [stdout]   --> tests/common/mod.rs:40:14
[INFO] [stdout]    |
[INFO] [stdout] 40 | pub async fn setup_cache_with_invalidation() -> Result<Arc<CacheManager>> {
[INFO] [stdout]    |              ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `cleanup_test_keys` is never used
[INFO] [stdout]   --> tests/common/mod.rs:56:14
[INFO] [stdout]    |
[INFO] [stdout] 56 | pub async fn cleanup_test_keys(prefix: &str) -> Result<()> {
[INFO] [stdout]    |              ^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `wait_for` is never used
[INFO] [stdout]    --> tests/common/mod.rs:133:14
[INFO] [stdout]     |
[INFO] [stdout] 133 | pub async fn wait_for<F>(mut condition: F, timeout_ms: u64) -> bool
[INFO] [stdout]     |              ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `Product` is never constructed
[INFO] [stdout]   --> tests/common/mod.rs:94:16
[INFO] [stdout]    |
[INFO] [stdout] 94 |     pub struct Product {
[INFO] [stdout]    |                ^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function `new` is never used
[INFO] [stdout]    --> tests/common/mod.rs:102:16
[INFO] [stdout]     |
[INFO] [stdout] 101 |     impl Product {
[INFO] [stdout]     |     ------------ associated function in this implementation
[INFO] [stdout] 102 |         pub fn new(id: u64) -> Self {
[INFO] [stdout]     |                ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `json_data_sized` is never used
[INFO] [stdout]    --> tests/common/mod.rs:123:12
[INFO] [stdout]     |
[INFO] [stdout] 123 |     pub fn json_data_sized(size_kb: usize) -> serde_json::Value {
[INFO] [stdout]     |            ^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `test_key_prefix` is never used
[INFO] [stdout]   --> tests/common/mod.rs:19:8
[INFO] [stdout]    |
[INFO] [stdout] 19 | pub fn test_key_prefix() -> String {
[INFO] [stdout]    |        ^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `setup_cache_system` is never used
[INFO] [stdout]   --> tests/common/mod.rs:34:14
[INFO] [stdout]    |
[INFO] [stdout] 34 | pub async fn setup_cache_system() -> Result<CacheSystem> {
[INFO] [stdout]    |              ^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `cleanup_test_keys` is never used
[INFO] [stdout]   --> tests/common/mod.rs:56:14
[INFO] [stdout]    |
[INFO] [stdout] 56 | pub async fn cleanup_test_keys(prefix: &str) -> Result<()> {
[INFO] [stdout]    |              ^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `wait_for` is never used
[INFO] [stdout]    --> tests/common/mod.rs:133:14
[INFO] [stdout]     |
[INFO] [stdout] 133 | pub async fn wait_for<F>(mut condition: F, timeout_ms: u64) -> bool
[INFO] [stdout]     |              ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `Product` is never constructed
[INFO] [stdout]   --> tests/common/mod.rs:94:16
[INFO] [stdout]    |
[INFO] [stdout] 94 |     pub struct Product {
[INFO] [stdout]    |                ^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function `new` is never used
[INFO] [stdout]    --> tests/common/mod.rs:102:16
[INFO] [stdout]     |
[INFO] [stdout] 101 |     impl Product {
[INFO] [stdout]     |     ------------ associated function in this implementation
[INFO] [stdout] 102 |         pub fn new(id: u64) -> Self {
[INFO] [stdout]     |                ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `json_data_sized` is never used
[INFO] [stdout]    --> tests/common/mod.rs:123:12
[INFO] [stdout]     |
[INFO] [stdout] 123 |     pub fn json_data_sized(size_kb: usize) -> serde_json::Value {
[INFO] [stdout]     |            ^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `cache`
[INFO] [stdout]   --> tests/common/mod.rs:57:9
[INFO] [stdout]    |
[INFO] [stdout] 57 |     let cache = setup_cache_system().await?;
[INFO] [stdout]    |         ^^^^^ help: if this is intentional, prefix it with an underscore: `_cache`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `test_key_prefix` is never used
[INFO] [stdout]   --> tests/common/mod.rs:19:8
[INFO] [stdout]    |
[INFO] [stdout] 19 | pub fn test_key_prefix() -> String {
[INFO] [stdout]    |        ^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `setup_cache_with_invalidation` is never used
[INFO] [stdout]   --> tests/common/mod.rs:40:14
[INFO] [stdout]    |
[INFO] [stdout] 40 | pub async fn setup_cache_with_invalidation() -> Result<Arc<CacheManager>> {
[INFO] [stdout]    |              ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `cleanup_test_keys` is never used
[INFO] [stdout]   --> tests/common/mod.rs:56:14
[INFO] [stdout]    |
[INFO] [stdout] 56 | pub async fn cleanup_test_keys(prefix: &str) -> Result<()> {
[INFO] [stdout]    |              ^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `wait_for` is never used
[INFO] [stdout]    --> tests/common/mod.rs:133:14
[INFO] [stdout]     |
[INFO] [stdout] 133 | pub async fn wait_for<F>(mut condition: F, timeout_ms: u64) -> bool
[INFO] [stdout]     |              ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `Product` is never constructed
[INFO] [stdout]   --> tests/common/mod.rs:94:16
[INFO] [stdout]    |
[INFO] [stdout] 94 |     pub struct Product {
[INFO] [stdout]    |                ^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function `new` is never used
[INFO] [stdout]    --> tests/common/mod.rs:102:16
[INFO] [stdout]     |
[INFO] [stdout] 101 |     impl Product {
[INFO] [stdout]     |     ------------ associated function in this implementation
[INFO] [stdout] 102 |         pub fn new(id: u64) -> Self {
[INFO] [stdout]     |                ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `json_data_sized` is never used
[INFO] [stdout]    --> tests/common/mod.rs:123:12
[INFO] [stdout]     |
[INFO] [stdout] 123 |     pub fn json_data_sized(size_kb: usize) -> serde_json::Value {
[INFO] [stdout]     |            ^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `redis_url` is never used
[INFO] [stdout]   --> tests/common/mod.rs:14:8
[INFO] [stdout]    |
[INFO] [stdout] 14 | pub fn redis_url() -> String {
[INFO] [stdout]    |        ^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `test_key_prefix` is never used
[INFO] [stdout]   --> tests/common/mod.rs:19:8
[INFO] [stdout]    |
[INFO] [stdout] 19 | pub fn test_key_prefix() -> String {
[INFO] [stdout]    |        ^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `setup_cache_system` is never used
[INFO] [stdout]   --> tests/common/mod.rs:34:14
[INFO] [stdout]    |
[INFO] [stdout] 34 | pub async fn setup_cache_system() -> Result<CacheSystem> {
[INFO] [stdout]    |              ^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `setup_cache_with_invalidation` is never used
[INFO] [stdout]   --> tests/common/mod.rs:40:14
[INFO] [stdout]    |
[INFO] [stdout] 40 | pub async fn setup_cache_with_invalidation() -> Result<Arc<CacheManager>> {
[INFO] [stdout]    |              ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `cleanup_test_keys` is never used
[INFO] [stdout]   --> tests/common/mod.rs:56:14
[INFO] [stdout]    |
[INFO] [stdout] 56 | pub async fn cleanup_test_keys(prefix: &str) -> Result<()> {
[INFO] [stdout]    |              ^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `wait_for` is never used
[INFO] [stdout]    --> tests/common/mod.rs:133:14
[INFO] [stdout]     |
[INFO] [stdout] 133 | pub async fn wait_for<F>(mut condition: F, timeout_ms: u64) -> bool
[INFO] [stdout]     |              ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `Product` is never constructed
[INFO] [stdout]   --> tests/common/mod.rs:94:16
[INFO] [stdout]    |
[INFO] [stdout] 94 |     pub struct Product {
[INFO] [stdout]    |                ^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function `new` is never used
[INFO] [stdout]    --> tests/common/mod.rs:102:16
[INFO] [stdout]     |
[INFO] [stdout] 101 |     impl Product {
[INFO] [stdout]     |     ------------ associated function in this implementation
[INFO] [stdout] 102 |         pub fn new(id: u64) -> Self {
[INFO] [stdout]     |                ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `json_data_sized` is never used
[INFO] [stdout]    --> tests/common/mod.rs:123:12
[INFO] [stdout]     |
[INFO] [stdout] 123 |     pub fn json_data_sized(size_kb: usize) -> serde_json::Value {
[INFO] [stdout]     |            ^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 46.71s
[INFO] running `Command { std: "docker" "inspect" "2dc25c6518ffe01285861ae18f9f518b438ce0b8bbc2f28721e7258f4b4e7119", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "2dc25c6518ffe01285861ae18f9f518b438ce0b8bbc2f28721e7258f4b4e7119", kill_on_drop: false }`
[INFO] [stdout] 2dc25c6518ffe01285861ae18f9f518b438ce0b8bbc2f28721e7258f4b4e7119
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-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@sha256:4848fb76d95f26979359cc7e45710b1dbc8f3acb7aeedee7c460d7702230f228" "/opt/rustwide/cargo-home/bin/cargo" "+c90bcb9571b7aab0d8beaa2ce8a998ffaf079d38" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] f6e4ed5032ff220ee716ff8ee939b415bff7da842f32ca50d13be90f9dd0742e
[INFO] running `Command { std: "docker" "start" "-a" "f6e4ed5032ff220ee716ff8ee939b415bff7da842f32ca50d13be90f9dd0742e", kill_on_drop: false }`
[INFO] [stderr] warning: unused variable: `cache`
[INFO] [stderr]   --> tests/common/mod.rs:57:9
[INFO] [stderr]    |
[INFO] [stderr] 57 |     let cache = setup_cache_system().await?;
[INFO] [stderr]    |         ^^^^^ help: if this is intentional, prefix it with an underscore: `_cache`
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(unused_variables)]` (part of `#[warn(unused)]`) on by default
[INFO] [stderr] 
[INFO] [stderr] warning: function `test_key_prefix` is never used
[INFO] [stderr]   --> tests/common/mod.rs:19:8
[INFO] [stderr]    |
[INFO] [stderr] 19 | pub fn test_key_prefix() -> String {
[INFO] [stderr]    |        ^^^^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stderr] 
[INFO] [stderr] warning: function `setup_cache_system` is never used
[INFO] [stderr]   --> tests/common/mod.rs:34:14
[INFO] [stderr]    |
[INFO] [stderr] 34 | pub async fn setup_cache_system() -> Result<CacheSystem> {
[INFO] [stderr]    |              ^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function `cleanup_test_keys` is never used
[INFO] [stderr]   --> tests/common/mod.rs:56:14
[INFO] [stderr]    |
[INFO] [stderr] 56 | pub async fn cleanup_test_keys(prefix: &str) -> Result<()> {
[INFO] [stderr]    |              ^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function `wait_for` is never used
[INFO] [stderr]    --> tests/common/mod.rs:133:14
[INFO] [stderr]     |
[INFO] [stderr] 133 | pub async fn wait_for<F>(mut condition: F, timeout_ms: u64) -> bool
[INFO] [stderr]     |              ^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: struct `Product` is never constructed
[INFO] [stderr]   --> tests/common/mod.rs:94:16
[INFO] [stderr]    |
[INFO] [stderr] 94 |     pub struct Product {
[INFO] [stderr]    |                ^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: associated function `new` is never used
[INFO] [stderr]    --> tests/common/mod.rs:102:16
[INFO] [stderr]     |
[INFO] [stderr] 101 |     impl Product {
[INFO] [stderr]     |     ------------ associated function in this implementation
[INFO] [stderr] 102 |         pub fn new(id: u64) -> Self {
[INFO] [stderr]     |                ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function `json_data_sized` is never used
[INFO] [stderr]    --> tests/common/mod.rs:123:12
[INFO] [stderr]     |
[INFO] [stdout] 
[INFO] [stderr] 123 |     pub fn json_data_sized(size_kb: usize) -> serde_json::Value {
[INFO] [stdout] running 2 tests
[INFO] [stderr]     |            ^^^^^^^^^^^^^^^
[INFO] [stdout] test invalidation::tests::test_invalidation_config_default ... ok
[INFO] [stderr] 
[INFO] [stdout] test invalidation::tests::test_invalidation_message_serialization ... ok
[INFO] [stderr] warning: unused import: `CacheManagerStats`
[INFO] [stdout] 
[INFO] [stderr]  --> tests/integration_basic.rs:8:39
[INFO] [stdout] test result: ok. 2 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.00s
[INFO] [stderr]   |
[INFO] [stdout] 
[INFO] [stderr] 8 | use multi_tier_cache::{CacheStrategy, CacheManagerStats};
[INFO] [stdout] 
[INFO] [stderr]   |                                       ^^^^^^^^^^^^^^^^^
[INFO] [stdout] running 12 tests
[INFO] [stderr]   |
[INFO] [stdout] test common::tests::test_key_generation ... ok
[INFO] [stderr]   = note: `#[warn(unused_imports)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] test common::tests::test_data_generation ... ok
[INFO] [stderr] 
[INFO] [stderr] warning: function `setup_cache_with_invalidation` is never used
[INFO] [stderr]   --> tests/common/mod.rs:40:14
[INFO] [stderr]    |
[INFO] [stderr] 40 | pub async fn setup_cache_with_invalidation() -> Result<Arc<CacheManager>> {
[INFO] [stderr]    |              ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function `json_user` is never used
[INFO] [stderr]    --> tests/common/mod.rs:113:12
[INFO] [stderr]     |
[INFO] [stderr] 113 |     pub fn json_user(id: u64) -> serde_json::Value {
[INFO] [stderr]     |            ^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function `redis_url` is never used
[INFO] [stderr]   --> tests/common/mod.rs:14:8
[INFO] [stderr]    |
[INFO] [stderr] 14 | pub fn redis_url() -> String {
[INFO] [stderr]    |        ^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stderr] 
[INFO] [stderr] warning: function `test_key_prefix` is never used
[INFO] [stderr]   --> tests/common/mod.rs:19:8
[INFO] [stderr]    |
[INFO] [stderr] 19 | pub fn test_key_prefix() -> String {
[INFO] [stderr]    |        ^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: `multi-tier-cache` (test "integration_invalidation") generated 8 warnings (run `cargo fix --test "integration_invalidation" -p multi-tier-cache` to apply 1 suggestion)
[INFO] [stderr] warning: `multi-tier-cache` (test "integration_basic") generated 9 warnings (7 duplicates) (run `cargo fix --test "integration_basic" -p multi-tier-cache` to apply 1 suggestion)
[INFO] [stderr] warning: `multi-tier-cache` (test "integration_stampede") generated 8 warnings (8 duplicates)
[INFO] [stderr] warning: `multi-tier-cache` (test "integration_streams") generated 9 warnings (8 duplicates)
[INFO] [stderr] warning: `multi-tier-cache` (test "integration_multi_tier") generated 10 warnings (8 duplicates)
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 0.22s
[INFO] [stderr]      Running unittests src/lib.rs (/opt/rustwide/target/debug/deps/multi_tier_cache-12cb3d163f81fad1)
[INFO] [stderr]      Running tests/integration_basic.rs (/opt/rustwide/target/debug/deps/integration_basic-817acfcf68ee4a60)
[INFO] [stdout] test test_basic_set_and_get has been running for over 60 seconds
[INFO] [stdout] test test_cache_miss has been running for over 60 seconds
[INFO] [stdout] test test_cache_strategies has been running for over 60 seconds
[INFO] [stdout] test test_compute_on_miss has been running for over 60 seconds
[INFO] [stdout] test test_health_check has been running for over 60 seconds
[INFO] [stdout] test test_l1_cache_hit has been running for over 60 seconds
[INFO] [stdout] test test_l2_to_l1_promotion has been running for over 60 seconds
[INFO] [stdout] test test_statistics_tracking has been running for over 60 seconds
[INFO] [stdout] test test_ttl_expiration has been running for over 60 seconds
[INFO] [stdout] test test_type_safe_caching has been running for over 60 seconds
[ERROR] error running command: no output for 300 seconds
[INFO] running `Command { std: "docker" "inspect" "f6e4ed5032ff220ee716ff8ee939b415bff7da842f32ca50d13be90f9dd0742e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "f6e4ed5032ff220ee716ff8ee939b415bff7da842f32ca50d13be90f9dd0742e", kill_on_drop: false }`
[INFO] [stdout] f6e4ed5032ff220ee716ff8ee939b415bff7da842f32ca50d13be90f9dd0742e
