[INFO] cloning repository https://github.com/redboltz/mqtt-broker-tokio
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/redboltz/mqtt-broker-tokio" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fredboltz%2Fmqtt-broker-tokio", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fredboltz%2Fmqtt-broker-tokio'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 434874f7c2006b9f3e085b20676fc54841f05b3e
[INFO] checking redboltz/mqtt-broker-tokio against try#54e27f559f23913c1d5afb1a0f0114e9e61b81b8 for pr-147589
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fredboltz%2Fmqtt-broker-tokio" "/workspace/builds/worker-2-tc2/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-2-tc2/source'...
[INFO] [stderr] done.
[INFO] started tweaking git repo https://github.com/redboltz/mqtt-broker-tokio
[INFO] finished tweaking git repo https://github.com/redboltz/mqtt-broker-tokio
[INFO] tweaked toml for git repo https://github.com/redboltz/mqtt-broker-tokio written to /workspace/builds/worker-2-tc2/source/Cargo.toml
[INFO] validating manifest of git repo https://github.com/redboltz/mqtt-broker-tokio on toolchain 54e27f559f23913c1d5afb1a0f0114e9e61b81b8
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+54e27f559f23913c1d5afb1a0f0114e9e61b81b8" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate git repo https://github.com/redboltz/mqtt-broker-tokio 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" "+54e27f559f23913c1d5afb1a0f0114e9e61b81b8" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
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[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-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:e90291280db7d1fac5b66fc6dad9f9662629e7365a55743daf9bdf73ebc4ea79" "/opt/rustwide/cargo-home/bin/cargo" "+54e27f559f23913c1d5afb1a0f0114e9e61b81b8" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
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[INFO] [stdout] warning: unused import: `SubscriptionMessage`
[INFO] [stdout]   --> src/main.rs:28:29
[INFO] [stdout]    |
[INFO] [stdout] 28 | use broker::{BrokerManager, SubscriptionMessage};
[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: `SubscriptionMessage`
[INFO] [stdout]   --> src/main.rs:28:29
[INFO] [stdout]    |
[INFO] [stdout] 28 | use broker::{BrokerManager, SubscriptionMessage};
[INFO] [stdout]    |                             ^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_imports)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: type alias `ClientId` is never used
[INFO] [stdout]   --> src/subscription_store.rs:48:10
[INFO] [stdout]    |
[INFO] [stdout] 48 | pub type ClientId = 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: field `topic_filter` is never read
[INFO] [stdout]   --> src/subscription_store.rs:55:9
[INFO] [stdout]    |
[INFO] [stdout] 52 | pub struct Subscription {
[INFO] [stdout]    |            ------------ field in this struct
[INFO] [stdout] ...
[INFO] [stdout] 55 |     pub topic_filter: String,
[INFO] [stdout]    |         ^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `Subscription` has derived impls for the traits `Clone` and `Debug`, but these are intentionally ignored during dead code analysis
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: method `into_arc` is never used
[INFO] [stdout]   --> src/subscription_store.rs:72:12
[INFO] [stdout]    |
[INFO] [stdout] 63 | impl EndpointRef {
[INFO] [stdout]    | ---------------- method in this implementation
[INFO] [stdout] ...
[INFO] [stdout] 72 |     pub fn into_arc(self) -> Arc<mqtt_ep::Endpoint<mqtt_ep::role::Server>> {
[INFO] [stdout]    |            ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated items `is_subscribed`, `check_subscription`, `get_endpoint_subscriptions`, and `collect_endpoint_subscriptions` are never used
[INFO] [stdout]    --> src/subscription_store.rs:440:18
[INFO] [stdout]     |
[INFO] [stdout] 141 | impl SubscriptionStore {
[INFO] [stdout]     | ---------------------- associated items in this implementation
[INFO] [stdout] ...
[INFO] [stdout] 440 |     pub async fn is_subscribed(&self, endpoint: &EndpointRef, topic_filter: &str) -> bool {
[INFO] [stdout]     |                  ^^^^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 448 |     fn check_subscription(
[INFO] [stdout]     |        ^^^^^^^^^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 493 |     pub async fn get_endpoint_subscriptions(&self, endpoint: &EndpointRef) -> Vec<String> {
[INFO] [stdout]     |                  ^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 509 |     fn collect_endpoint_subscriptions(
[INFO] [stdout]     |        ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: type alias `ClientId` is never used
[INFO] [stdout]   --> src/subscription_store.rs:48:10
[INFO] [stdout]    |
[INFO] [stdout] 48 | pub type ClientId = 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: method `into_arc` is never used
[INFO] [stdout]   --> src/subscription_store.rs:72:12
[INFO] [stdout]    |
[INFO] [stdout] 63 | impl EndpointRef {
[INFO] [stdout]    | ---------------- method in this implementation
[INFO] [stdout] ...
[INFO] [stdout] 72 |     pub fn into_arc(self) -> Arc<mqtt_ep::Endpoint<mqtt_ep::role::Server>> {
[INFO] [stdout]    |            ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated items `is_subscribed`, `check_subscription`, `get_endpoint_subscriptions`, and `collect_endpoint_subscriptions` are never used
[INFO] [stdout]    --> src/subscription_store.rs:440:18
[INFO] [stdout]     |
[INFO] [stdout] 141 | impl SubscriptionStore {
[INFO] [stdout]     | ---------------------- associated items in this implementation
[INFO] [stdout] ...
[INFO] [stdout] 440 |     pub async fn is_subscribed(&self, endpoint: &EndpointRef, topic_filter: &str) -> bool {
[INFO] [stdout]     |                  ^^^^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 448 |     fn check_subscription(
[INFO] [stdout]     |        ^^^^^^^^^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 493 |     pub async fn get_endpoint_subscriptions(&self, endpoint: &EndpointRef) -> Vec<String> {
[INFO] [stdout]     |                  ^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 509 |     fn collect_endpoint_subscriptions(
[INFO] [stdout]     |        ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 41.32s
[INFO] running `Command { std: "docker" "inspect" "04335ab988cb6b31a7468e80bf328775f91a8c34596eb8669496024e0a925dd4", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "04335ab988cb6b31a7468e80bf328775f91a8c34596eb8669496024e0a925dd4", kill_on_drop: false }`
[INFO] [stdout] 04335ab988cb6b31a7468e80bf328775f91a8c34596eb8669496024e0a925dd4