[INFO] cloning repository https://github.com/tjz101/mqtt-test [INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/tjz101/mqtt-test" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Ftjz101%2Fmqtt-test", kill_on_drop: false }` [INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Ftjz101%2Fmqtt-test'... [INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }` [INFO] [stdout] ba121ee7b6ccd43472423c0e2a927f94436b014b [INFO] checking tjz101/mqtt-test against master#385fa9d845dd326c6bbfd58c22244215e431948a for never-type-fallback-to-never [INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Ftjz101%2Fmqtt-test" "/workspace/builds/worker-3-tc1/source", kill_on_drop: false }` [INFO] [stderr] Cloning into '/workspace/builds/worker-3-tc1/source'... [INFO] [stderr] done. [INFO] validating manifest of git repo https://github.com/tjz101/mqtt-test on toolchain 385fa9d845dd326c6bbfd58c22244215e431948a [INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+385fa9d845dd326c6bbfd58c22244215e431948a" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }` [INFO] started tweaking git repo https://github.com/tjz101/mqtt-test [INFO] finished tweaking git repo https://github.com/tjz101/mqtt-test [INFO] tweaked toml for git repo https://github.com/tjz101/mqtt-test written to /workspace/builds/worker-3-tc1/source/Cargo.toml [INFO] crate git repo https://github.com/tjz101/mqtt-test 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" "+385fa9d845dd326c6bbfd58c22244215e431948a" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }` [INFO] [stderr] Updating crates.io index [INFO] [stderr] Downloading crates ... 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"+385fa9d845dd326c6bbfd58c22244215e431948a" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }` [INFO] [stdout] 1e35b29f812aa377cffcea2a924b22ace7a22a2b52a8e946ede561844df9535a [INFO] running `Command { std: "docker" "start" "-a" "1e35b29f812aa377cffcea2a924b22ace7a22a2b52a8e946ede561844df9535a", kill_on_drop: false }` [INFO] running `Command { std: "docker" "inspect" "1e35b29f812aa377cffcea2a924b22ace7a22a2b52a8e946ede561844df9535a", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "1e35b29f812aa377cffcea2a924b22ace7a22a2b52a8e946ede561844df9535a", kill_on_drop: false }` [INFO] [stdout] 1e35b29f812aa377cffcea2a924b22ace7a22a2b52a8e946ede561844df9535a [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@sha256:2788e3201cd34a07e3172128adcd8b3090168a8e3bcc40d7c032b9dda1df7d1c" "/opt/rustwide/cargo-home/bin/cargo" "+385fa9d845dd326c6bbfd58c22244215e431948a" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }` [INFO] [stdout] 3bd94e4af06e6896a8212ab8e41d2b7cf0761cce7f3e1b97a9e3d18f3eee9b97 [INFO] running `Command { std: "docker" "start" "-a" "3bd94e4af06e6896a8212ab8e41d2b7cf0761cce7f3e1b97a9e3d18f3eee9b97", kill_on_drop: false }` [INFO] [stderr] Compiling proc-macro2 v1.0.37 [INFO] [stderr] Compiling unicode-xid v0.2.2 [INFO] [stderr] Compiling syn v1.0.91 [INFO] [stderr] Compiling libc v0.2.124 [INFO] [stderr] Checking cfg-if v1.0.0 [INFO] [stderr] Compiling memchr v2.4.1 [INFO] [stderr] Compiling futures-core v0.3.21 [INFO] [stderr] Checking pin-project-lite v0.2.9 [INFO] [stderr] Compiling log v0.4.16 [INFO] [stderr] Compiling autocfg v1.1.0 [INFO] [stderr] Compiling parking_lot_core v0.9.2 [INFO] [stderr] Checking futures-sink v0.3.21 [INFO] [stderr] Checking lazy_static v1.4.0 [INFO] [stderr] Compiling futures-task v0.3.21 [INFO] [stderr] Compiling futures-channel v0.3.21 [INFO] [stderr] Checking smallvec v1.8.0 [INFO] [stderr] Compiling futures-util v0.3.21 [INFO] [stderr] Checking scopeguard v1.1.0 [INFO] [stderr] Compiling crossbeam-utils v0.8.8 [INFO] [stderr] Checking futures-io v0.3.21 [INFO] [stderr] Checking 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[INFO] [stdout] warning: unused variable: `message` [INFO] [stdout] --> src/actor/recv_actor.rs:23:25 [INFO] [stdout] | [INFO] [stdout] 23 | fn parse_msg(&self, message: String) { [INFO] [stdout] | ^^^^^^^ help: if this is intentional, prefix it with an underscore: `_message` [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_variables)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `ctx` [INFO] [stdout] --> src/actor/recv_actor.rs:55:40 [INFO] [stdout] | [INFO] [stdout] 55 | fn handle(&mut self, msg: MqttMsg, ctx: &mut Self::Context) -> Self::Result { [INFO] [stdout] | ^^^ help: if this is intentional, prefix it with an underscore: `_ctx` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `ctx` [INFO] [stdout] --> src/actor/reply_actor.rs:26:40 [INFO] [stdout] | [INFO] [stdout] 26 | fn handle(&mut self, msg: MqttMsg, ctx: &mut Self::Context) -> Self::Result { [INFO] [stdout] | ^^^ help: if this is intentional, prefix it with an underscore: `_ctx` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: associated function `new` is never used [INFO] [stdout] --> src/actor/recv_actor.rs:16:12 [INFO] [stdout] | [INFO] [stdout] 15 | impl Process { [INFO] [stdout] | ------------ associated function in this implementation [INFO] [stdout] 16 | pub fn new(reply_addr: Addr) -> Self { [INFO] [stdout] | ^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(dead_code)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: associated function `new` is never used [INFO] [stdout] --> src/actor/recv_actor.rs:41:12 [INFO] [stdout] | [INFO] [stdout] 40 | impl RecvActor { [INFO] [stdout] | -------------- associated function in this implementation [INFO] [stdout] 41 | pub fn new(process: Arc>) -> Self { [INFO] [stdout] | ^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: associated function `new` is never used [INFO] [stdout] --> src/actor/reply_actor.rs:12:12 [INFO] [stdout] | [INFO] [stdout] 11 | impl ReplyActor { [INFO] [stdout] | --------------- associated function in this implementation [INFO] [stdout] 12 | pub fn new(client: Arc) -> Self { [INFO] [stdout] | ^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: field `rx` is never read [INFO] [stdout] --> src/client/mqtt_client.rs:14:5 [INFO] [stdout] | [INFO] [stdout] 12 | pub struct MqttClient { [INFO] [stdout] | ---------- field in this struct [INFO] [stdout] 13 | cli: mqtt::Client, [INFO] [stdout] 14 | rx: mqtt::Receiver>, [INFO] [stdout] | ^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: associated items `new`, `subscribe`, and `try_reconnect` are never used [INFO] [stdout] --> src/client/mqtt_client.rs:18:18 [INFO] [stdout] | [INFO] [stdout] 17 | impl MqttClient { [INFO] [stdout] | --------------- associated items in this implementation [INFO] [stdout] 18 | pub async fn new() -> Result { [INFO] [stdout] | ^^^ [INFO] [stdout] ... [INFO] [stdout] 49 | pub async fn subscribe(&self, topic: &str, qos: i32, recv_addr: Arc>) -> Result<()> { [INFO] [stdout] | ^^^^^^^^^ [INFO] [stdout] ... [INFO] [stdout] 81 | async fn try_reconnect(&self, topic: &str, qos: i32) -> Result { [INFO] [stdout] | ^^^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `message` [INFO] [stdout] --> src/actor/recv_actor.rs:23:25 [INFO] [stdout] | [INFO] [stdout] 23 | fn parse_msg(&self, message: String) { [INFO] [stdout] | ^^^^^^^ help: if this is intentional, prefix it with an underscore: `_message` [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_variables)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused `std::result::Result` that must be used [INFO] [stdout] --> src/actor/reply_actor.rs:28:9 [INFO] [stdout] | [INFO] [stdout] 28 | self.client.publish(&msg.0, &msg.1, msg.2); [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: this `Result` may be an `Err` variant, which should be handled [INFO] [stdout] = note: `#[warn(unused_must_use)]` on by default [INFO] [stdout] help: use `let _ = ...` to ignore the resulting value [INFO] [stdout] | [INFO] [stdout] 28 | let _ = self.client.publish(&msg.0, &msg.1, msg.2); [INFO] [stdout] | +++++++ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `ctx` [INFO] [stdout] --> src/actor/recv_actor.rs:55:40 [INFO] [stdout] | [INFO] [stdout] 55 | fn handle(&mut self, msg: MqttMsg, ctx: &mut Self::Context) -> Self::Result { [INFO] [stdout] | ^^^ help: if this is intentional, prefix it with an underscore: `_ctx` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `ctx` [INFO] [stdout] --> src/actor/reply_actor.rs:26:40 [INFO] [stdout] | [INFO] [stdout] 26 | fn handle(&mut self, msg: MqttMsg, ctx: &mut Self::Context) -> Self::Result { [INFO] [stdout] | ^^^ help: if this is intentional, prefix it with an underscore: `_ctx` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: associated function `new` is never used [INFO] [stdout] --> src/actor/recv_actor.rs:16:12 [INFO] [stdout] | [INFO] [stdout] 15 | impl Process { [INFO] [stdout] | ------------ associated function in this implementation [INFO] [stdout] 16 | pub fn new(reply_addr: Addr) -> Self { [INFO] [stdout] | ^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(dead_code)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: associated function `new` is never used [INFO] [stdout] --> src/actor/recv_actor.rs:41:12 [INFO] [stdout] | [INFO] [stdout] 40 | impl RecvActor { [INFO] [stdout] | -------------- associated function in this implementation [INFO] [stdout] 41 | pub fn new(process: Arc>) -> Self { [INFO] [stdout] | ^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: associated function `new` is never used [INFO] [stdout] --> src/actor/reply_actor.rs:12:12 [INFO] [stdout] | [INFO] [stdout] 11 | impl ReplyActor { [INFO] [stdout] | --------------- associated function in this implementation [INFO] [stdout] 12 | pub fn new(client: Arc) -> Self { [INFO] [stdout] | ^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: field `rx` is never read [INFO] [stdout] --> src/client/mqtt_client.rs:14:5 [INFO] [stdout] | [INFO] [stdout] 12 | pub struct MqttClient { [INFO] [stdout] | ---------- field in this struct [INFO] [stdout] 13 | cli: mqtt::Client, [INFO] [stdout] 14 | rx: mqtt::Receiver>, [INFO] [stdout] | ^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: associated items `new`, `subscribe`, and `try_reconnect` are never used [INFO] [stdout] --> src/client/mqtt_client.rs:18:18 [INFO] [stdout] | [INFO] [stdout] 17 | impl MqttClient { [INFO] [stdout] | --------------- associated items in this implementation [INFO] [stdout] 18 | pub async fn new() -> Result { [INFO] [stdout] | ^^^ [INFO] [stdout] ... [INFO] [stdout] 49 | pub async fn subscribe(&self, topic: &str, qos: i32, recv_addr: Arc>) -> Result<()> { [INFO] [stdout] | ^^^^^^^^^ [INFO] [stdout] ... [INFO] [stdout] 81 | async fn try_reconnect(&self, topic: &str, qos: i32) -> Result { [INFO] [stdout] | ^^^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: 9 warnings emitted [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused `std::result::Result` that must be used [INFO] [stdout] --> src/actor/reply_actor.rs:28:9 [INFO] [stdout] | [INFO] [stdout] 28 | self.client.publish(&msg.0, &msg.1, msg.2); [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: this `Result` may be an `Err` variant, which should be handled [INFO] [stdout] = note: `#[warn(unused_must_use)]` on by default [INFO] [stdout] help: use `let _ = ...` to ignore the resulting value [INFO] [stdout] | [INFO] [stdout] 28 | let _ = self.client.publish(&msg.0, &msg.1, msg.2); [INFO] [stdout] | +++++++ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: 9 warnings emitted [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `message` [INFO] [stdout] --> src/actor/recv_actor.rs:23:25 [INFO] [stdout] | [INFO] [stdout] 23 | fn parse_msg(&self, message: String) { [INFO] [stdout] | ^^^^^^^ help: if this is intentional, prefix it with an underscore: `_message` [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_variables)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `ctx` [INFO] [stdout] --> src/actor/recv_actor.rs:55:40 [INFO] [stdout] | [INFO] [stdout] 55 | fn handle(&mut self, msg: MqttMsg, ctx: &mut Self::Context) -> Self::Result { [INFO] [stdout] | ^^^ help: if this is intentional, prefix it with an underscore: `_ctx` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `ctx` [INFO] [stdout] --> src/actor/reply_actor.rs:26:40 [INFO] [stdout] | [INFO] [stdout] 26 | fn handle(&mut self, msg: MqttMsg, ctx: &mut Self::Context) -> Self::Result { [INFO] [stdout] | ^^^ help: if this is intentional, prefix it with an underscore: `_ctx` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused `std::result::Result` that must be used [INFO] [stdout] --> src/actor/reply_actor.rs:28:9 [INFO] [stdout] | [INFO] [stdout] 28 | self.client.publish(&msg.0, &msg.1, msg.2); [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: this `Result` may be an `Err` variant, which should be handled [INFO] [stdout] = note: `#[warn(unused_must_use)]` on by default [INFO] [stdout] help: use `let _ = ...` to ignore the resulting value [INFO] [stdout] | [INFO] [stdout] 28 | let _ = self.client.publish(&msg.0, &msg.1, msg.2); [INFO] [stdout] | +++++++ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `message` [INFO] [stdout] --> src/actor/recv_actor.rs:23:25 [INFO] [stdout] | [INFO] [stdout] 23 | fn parse_msg(&self, message: String) { [INFO] [stdout] | ^^^^^^^ help: if this is intentional, prefix it with an underscore: `_message` [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_variables)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `ctx` [INFO] [stdout] --> src/actor/recv_actor.rs:55:40 [INFO] [stdout] | [INFO] [stdout] 55 | fn handle(&mut self, msg: MqttMsg, ctx: &mut Self::Context) -> Self::Result { [INFO] [stdout] | ^^^ help: if this is intentional, prefix it with an underscore: `_ctx` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `ctx` [INFO] [stdout] --> src/actor/reply_actor.rs:26:40 [INFO] [stdout] | [INFO] [stdout] 26 | fn handle(&mut self, msg: MqttMsg, ctx: &mut Self::Context) -> Self::Result { [INFO] [stdout] | ^^^ help: if this is intentional, prefix it with an underscore: `_ctx` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: 4 warnings emitted [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused `std::result::Result` that must be used [INFO] [stdout] --> src/actor/reply_actor.rs:28:9 [INFO] [stdout] | [INFO] [stdout] 28 | self.client.publish(&msg.0, &msg.1, msg.2); [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: this `Result` may be an `Err` variant, which should be handled [INFO] [stdout] = note: `#[warn(unused_must_use)]` on by default [INFO] [stdout] help: use `let _ = ...` to ignore the resulting value [INFO] [stdout] | [INFO] [stdout] 28 | let _ = self.client.publish(&msg.0, &msg.1, msg.2); [INFO] [stdout] | +++++++ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: 4 warnings emitted [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] Finished `dev` profile [unoptimized + debuginfo] target(s) in 23.79s [INFO] running `Command { std: "docker" "inspect" "3bd94e4af06e6896a8212ab8e41d2b7cf0761cce7f3e1b97a9e3d18f3eee9b97", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "3bd94e4af06e6896a8212ab8e41d2b7cf0761cce7f3e1b97a9e3d18f3eee9b97", kill_on_drop: false }` [INFO] [stdout] 3bd94e4af06e6896a8212ab8e41d2b7cf0761cce7f3e1b97a9e3d18f3eee9b97