[INFO] fetching crate mqttier 0.7.0...
[INFO] testing mqttier-0.7.0 against beta-2025-10-28 for beta-1.92-2
[INFO] extracting crate mqttier 0.7.0 into /workspace/builds/worker-3-tc2/source
[INFO] started tweaking crates.io crate mqttier 0.7.0
[INFO] removed 0 missing examples
[INFO] finished tweaking crates.io crate mqttier 0.7.0
[INFO] tweaked toml for crates.io crate mqttier 0.7.0 written to /workspace/builds/worker-3-tc2/source/Cargo.toml
[INFO] validating manifest of crates.io crate mqttier 0.7.0 on toolchain beta-2025-10-28
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+beta-2025-10-28" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate crates.io crate mqttier 0.7.0 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-2025-10-28" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-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@sha256:4848fb76d95f26979359cc7e45710b1dbc8f3acb7aeedee7c460d7702230f228" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2025-10-28" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 0dce1660659431bb8504ca85beb0ad92e41ee03a8c095211041bda14147ed605
[INFO] running `Command { std: "docker" "start" "-a" "0dce1660659431bb8504ca85beb0ad92e41ee03a8c095211041bda14147ed605", kill_on_drop: false }`
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[INFO] [stdout] 0dce1660659431bb8504ca85beb0ad92e41ee03a8c095211041bda14147ed605
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-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@sha256:4848fb76d95f26979359cc7e45710b1dbc8f3acb7aeedee7c460d7702230f228" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2025-10-28" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 53bb57f4317429020212ca2798ebcbac8628bb7246498d5fc5c5caaddc03dd9c
[INFO] running `Command { std: "docker" "start" "-a" "53bb57f4317429020212ca2798ebcbac8628bb7246498d5fc5c5caaddc03dd9c", kill_on_drop: false }`
[INFO] [stderr]    Compiling proc-macro2 v1.0.103
[INFO] [stderr]    Compiling cc v1.2.43
[INFO] [stderr]    Compiling rustls v0.22.4
[INFO] [stderr]    Compiling getrandom v0.3.4
[INFO] [stderr]    Compiling rustls-pemfile v2.2.0
[INFO] [stderr]    Compiling getrandom v0.2.16
[INFO] [stderr]    Compiling futures-sink v0.3.31
[INFO] [stderr]    Compiling num-traits v0.2.19
[INFO] [stderr]    Compiling futures-util v0.3.31
[INFO] [stderr]    Compiling flume v0.11.1
[INFO] [stderr]    Compiling rustls-native-certs v0.7.3
[INFO] [stderr]    Compiling quote v1.0.41
[INFO] [stderr]    Compiling uuid v1.18.1
[INFO] [stderr]    Compiling syn v2.0.108
[INFO] [stderr]    Compiling ring v0.17.14
[INFO] [stderr]    Compiling darling_core v0.20.11
[INFO] [stderr]    Compiling tokio-macros v2.6.0
[INFO] [stderr]    Compiling serde_derive v1.0.228
[INFO] [stderr]    Compiling thiserror-impl v1.0.69
[INFO] [stderr]    Compiling tracing-attributes v0.1.30
[INFO] [stderr]    Compiling async-trait v0.1.89
[INFO] [stderr]    Compiling tokio v1.48.0
[INFO] [stderr]    Compiling thiserror v1.0.69
[INFO] [stderr]    Compiling tracing v0.1.41
[INFO] [stderr]    Compiling rustls-webpki v0.102.8
[INFO] [stderr]    Compiling darling_macro v0.20.11
[INFO] [stderr]    Compiling darling v0.20.11
[INFO] [stderr]    Compiling derive_builder_core v0.20.2
[INFO] [stderr]    Compiling serde v1.0.228
[INFO] [stderr]    Compiling derive_builder_macro v0.20.2
[INFO] [stderr]    Compiling derive_builder v0.20.2
[INFO] [stderr]    Compiling chrono v0.4.42
[INFO] [stderr]    Compiling tokio-rustls v0.25.0
[INFO] [stderr]    Compiling stinger-mqtt-trait v0.5.1
[INFO] [stderr]    Compiling rumqttc v0.24.0
[INFO] [stderr]    Compiling mqttier v0.7.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused variable: `topic_to_subscription_ids`
[INFO] [stdout]    --> src/lib.rs:651:9
[INFO] [stdout]     |
[INFO] [stdout] 651 |         topic_to_subscription_ids: Arc<Mutex<HashMap<String, Vec<usize>>>>,
[INFO] [stdout]     |         ^^^^^^^^^^^^^^^^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_topic_to_subscription_ids`
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_variables)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `mqtt_options` is never read
[INFO] [stdout]    --> src/lib.rs:168:5
[INFO] [stdout]     |
[INFO] [stdout] 128 | pub struct MqttierClient {
[INFO] [stdout]     |            ------------- field in this struct
[INFO] [stdout] ...
[INFO] [stdout] 168 |     mqtt_options: Arc<RwLock<MqttOptions>>,
[INFO] [stdout]     |     ^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `MqttierClient` has a derived impl for the trait `Clone`, but this is intentionally ignored during dead code analysis
[INFO] [stdout]     = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 30.78s
[INFO] running `Command { std: "docker" "inspect" "53bb57f4317429020212ca2798ebcbac8628bb7246498d5fc5c5caaddc03dd9c", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "53bb57f4317429020212ca2798ebcbac8628bb7246498d5fc5c5caaddc03dd9c", kill_on_drop: false }`
[INFO] [stdout] 53bb57f4317429020212ca2798ebcbac8628bb7246498d5fc5c5caaddc03dd9c
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-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@sha256:4848fb76d95f26979359cc7e45710b1dbc8f3acb7aeedee7c460d7702230f228" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2025-10-28" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] a60c753c6364ad074fe0c03a0f5e773ef0736039846c93a04d8c05df6f6e45f6
[INFO] running `Command { std: "docker" "start" "-a" "a60c753c6364ad074fe0c03a0f5e773ef0736039846c93a04d8c05df6f6e45f6", kill_on_drop: false }`
[INFO] [stderr]    Compiling regex-automata v0.4.13
[INFO] [stderr]    Compiling tracing v0.1.41
[INFO] [stderr]    Compiling rustls v0.22.4
[INFO] [stderr]    Compiling matchers v0.2.0
[INFO] [stderr]    Compiling tokio-rustls v0.25.0
[INFO] [stderr]    Compiling tracing-subscriber v0.3.20
[INFO] [stderr]    Compiling rumqttc v0.24.0
[INFO] [stderr]    Compiling stinger-mqtt-trait v0.5.1
[INFO] [stderr]    Compiling mqttier v0.7.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused variable: `topic_to_subscription_ids`
[INFO] [stdout]    --> src/lib.rs:651:9
[INFO] [stdout]     |
[INFO] [stdout] 651 |         topic_to_subscription_ids: Arc<Mutex<HashMap<String, Vec<usize>>>>,
[INFO] [stdout]     |         ^^^^^^^^^^^^^^^^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_topic_to_subscription_ids`
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_variables)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `topic_to_subscription_ids`
[INFO] [stdout]    --> src/lib.rs:651:9
[INFO] [stdout]     |
[INFO] [stdout] 651 |         topic_to_subscription_ids: Arc<Mutex<HashMap<String, Vec<usize>>>>,
[INFO] [stdout]     |         ^^^^^^^^^^^^^^^^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_topic_to_subscription_ids`
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_variables)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `mqtt_options` is never read
[INFO] [stdout]    --> src/lib.rs:168:5
[INFO] [stdout]     |
[INFO] [stdout] 128 | pub struct MqttierClient {
[INFO] [stdout]     |            ------------- field in this struct
[INFO] [stdout] ...
[INFO] [stdout] 168 |     mqtt_options: Arc<RwLock<MqttOptions>>,
[INFO] [stdout]     |     ^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `MqttierClient` has a derived impl for the trait `Clone`, but this is 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: field `mqtt_options` is never read
[INFO] [stdout]    --> src/lib.rs:168:5
[INFO] [stdout]     |
[INFO] [stdout] 128 | pub struct MqttierClient {
[INFO] [stdout]     |            ------------- field in this struct
[INFO] [stdout] ...
[INFO] [stdout] 168 |     mqtt_options: Arc<RwLock<MqttOptions>>,
[INFO] [stdout]     |     ^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `MqttierClient` has a derived impl for the trait `Clone`, but this is 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: unused import: `stinger_mqtt_trait::Mqtt5PubSub`
[INFO] [stdout]   --> examples/metrics_demo.rs:10:5
[INFO] [stdout]    |
[INFO] [stdout] 10 | use stinger_mqtt_trait::Mqtt5PubSub;
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_imports)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 19.05s
[INFO] running `Command { std: "docker" "inspect" "a60c753c6364ad074fe0c03a0f5e773ef0736039846c93a04d8c05df6f6e45f6", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "a60c753c6364ad074fe0c03a0f5e773ef0736039846c93a04d8c05df6f6e45f6", kill_on_drop: false }`
[INFO] [stdout] a60c753c6364ad074fe0c03a0f5e773ef0736039846c93a04d8c05df6f6e45f6
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-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@sha256:4848fb76d95f26979359cc7e45710b1dbc8f3acb7aeedee7c460d7702230f228" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2025-10-28" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] 0fc9ef5d02cf5535da585e94117469202a1881553343ffa0431155730822efc7
[INFO] running `Command { std: "docker" "start" "-a" "0fc9ef5d02cf5535da585e94117469202a1881553343ffa0431155730822efc7", kill_on_drop: false }`
[INFO] [stderr] warning: unused variable: `topic_to_subscription_ids`
[INFO] [stderr]    --> src/lib.rs:651:9
[INFO] [stderr]     |
[INFO] [stderr] 651 |         topic_to_subscription_ids: Arc<Mutex<HashMap<String, Vec<usize>>>>,
[INFO] [stderr]     |         ^^^^^^^^^^^^^^^^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_topic_to_subscription_ids`
[INFO] [stderr]     |
[INFO] [stderr]     = note: `#[warn(unused_variables)]` (part of `#[warn(unused)]`) on by default
[INFO] [stderr] 
[INFO] [stderr] warning: field `mqtt_options` is never read
[INFO] [stderr]    --> src/lib.rs:168:5
[INFO] [stderr]     |
[INFO] [stderr] 128 | pub struct MqttierClient {
[INFO] [stderr]     |            ------------- field in this struct
[INFO] [stderr] ...
[INFO] [stderr] 168 |     mqtt_options: Arc<RwLock<MqttOptions>>,
[INFO] [stderr]     |     ^^^^^^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = note: `MqttierClient` has a derived impl for the trait `Clone`, but this is intentionally ignored during dead code analysis
[INFO] [stderr]     = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stderr] 
[INFO] [stderr] warning: `mqttier` (lib) generated 2 warnings (run `cargo fix --lib -p mqttier` to apply 1 suggestion)
[INFO] [stderr] warning: unused import: `stinger_mqtt_trait::Mqtt5PubSub`
[INFO] [stderr]   --> examples/metrics_demo.rs:10:5
[INFO] [stderr]    |
[INFO] [stderr] 10 | use stinger_mqtt_trait::Mqtt5PubSub;
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(unused_imports)]` (part of `#[warn(unused)]`) on by default
[INFO] [stderr] 
[INFO] [stderr] warning: `mqttier` (example "metrics_demo") generated 1 warning (run `cargo fix --example "metrics_demo" -p mqttier` to apply 1 suggestion)
[INFO] [stderr] warning: `mqttier` (lib test) generated 2 warnings (2 duplicates)
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 0.17s
[INFO] [stderr]      Running unittests src/lib.rs (/opt/rustwide/target/debug/deps/mqttier-37bce8fa970c8b29)
[INFO] [stdout] 
[INFO] [stdout] running 3 tests
[INFO] [stdout] test tests::test_client_creation_with_id ... ok
[INFO] [stdout] test validation_tests::test_mqtt_client_trait_implementation ... ok
[INFO] [stdout] test tests::test_client_creation ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 3 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.03s
[INFO] [stdout] 
[INFO] [stderr]    Doc-tests mqttier
[INFO] [stdout] 
[INFO] [stdout] running 0 tests
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 0 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.00s
[INFO] [stdout] 
[INFO] running `Command { std: "docker" "inspect" "0fc9ef5d02cf5535da585e94117469202a1881553343ffa0431155730822efc7", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "0fc9ef5d02cf5535da585e94117469202a1881553343ffa0431155730822efc7", kill_on_drop: false }`
[INFO] [stdout] 0fc9ef5d02cf5535da585e94117469202a1881553343ffa0431155730822efc7
