[INFO] cloning repository https://github.com/JulianFeinauer/mqtt-remote-control-demo [INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/JulianFeinauer/mqtt-remote-control-demo" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FJulianFeinauer%2Fmqtt-remote-control-demo", kill_on_drop: false }` [INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FJulianFeinauer%2Fmqtt-remote-control-demo'... [INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }` [INFO] [stdout] 1c19a37c5a5e16a5c936735547fc6e55faef64ae [INFO] checking JulianFeinauer/mqtt-remote-control-demo/1c19a37c5a5e16a5c936735547fc6e55faef64ae against try#4d98531622e1718ae0bc3c7a1ab9cd8938428452+rustflags=-Dtail_expr_drop_order for pr-129604 [INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FJulianFeinauer%2Fmqtt-remote-control-demo" "/workspace/builds/worker-5-tc2/source", kill_on_drop: false }` [INFO] [stderr] Cloning into '/workspace/builds/worker-5-tc2/source'... [INFO] [stderr] done. [INFO] validating manifest of git repo https://github.com/JulianFeinauer/mqtt-remote-control-demo on toolchain 4d98531622e1718ae0bc3c7a1ab9cd8938428452 [INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+4d98531622e1718ae0bc3c7a1ab9cd8938428452" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }` [INFO] started tweaking git repo https://github.com/JulianFeinauer/mqtt-remote-control-demo [INFO] finished tweaking git repo https://github.com/JulianFeinauer/mqtt-remote-control-demo [INFO] tweaked toml for git repo https://github.com/JulianFeinauer/mqtt-remote-control-demo written to /workspace/builds/worker-5-tc2/source/Cargo.toml [INFO] crate git repo https://github.com/JulianFeinauer/mqtt-remote-control-demo 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" "+4d98531622e1718ae0bc3c7a1ab9cd8938428452" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }` [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-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@sha256:923055f121b5182466d55868a8b05e67af8ba4a3a3f6bad814e953ca3cd3ac2a" "/opt/rustwide/cargo-home/bin/cargo" "+4d98531622e1718ae0bc3c7a1ab9cd8938428452" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }` [INFO] [stdout] 24dabed383220306bfad89531765c8bcafc54bc6b18e614cb9cff005706daa91 [INFO] running `Command { std: "docker" "start" "-a" "24dabed383220306bfad89531765c8bcafc54bc6b18e614cb9cff005706daa91", kill_on_drop: false }` [INFO] running `Command { std: "docker" "inspect" "24dabed383220306bfad89531765c8bcafc54bc6b18e614cb9cff005706daa91", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "24dabed383220306bfad89531765c8bcafc54bc6b18e614cb9cff005706daa91", kill_on_drop: false }` [INFO] [stdout] 24dabed383220306bfad89531765c8bcafc54bc6b18e614cb9cff005706daa91 [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-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 -Dtail_expr_drop_order" "-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@sha256:923055f121b5182466d55868a8b05e67af8ba4a3a3f6bad814e953ca3cd3ac2a" "/opt/rustwide/cargo-home/bin/cargo" "+4d98531622e1718ae0bc3c7a1ab9cd8938428452" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }` [INFO] [stdout] b58dbe77290990f60ae41b15e0d9ae3f66005fe61d86e9f5f1145d9099e7068d [INFO] running `Command { std: "docker" "start" "-a" "b58dbe77290990f60ae41b15e0d9ae3f66005fe61d86e9f5f1145d9099e7068d", kill_on_drop: false }` [INFO] [stderr] Compiling proc-macro2 v1.0.40 [INFO] [stderr] Compiling unicode-ident v1.0.1 [INFO] [stderr] Compiling syn v1.0.98 [INFO] [stderr] Compiling futures-core v0.3.21 [INFO] [stderr] Compiling futures-channel v0.3.21 [INFO] [stderr] Compiling openssl-sys v0.9.74 [INFO] [stderr] Compiling cmake v0.1.45 [INFO] [stderr] Compiling crossbeam-utils v0.8.10 [INFO] [stderr] Checking once_cell v1.12.0 [INFO] [stderr] Checking cache-padded v1.2.0 [INFO] [stderr] Checking smallvec v1.8.1 [INFO] [stderr] Checking event-listener v2.5.2 [INFO] [stderr] Checking mio v0.8.4 [INFO] [stderr] Checking socket2 v0.4.4 [INFO] [stderr] Checking signal-hook-registry v1.4.0 [INFO] [stderr] Checking futures-timer v3.0.2 [INFO] [stderr] Checking concurrent-queue v1.2.2 [INFO] [stderr] Checking parking_lot_core v0.9.3 [INFO] [stderr] Compiling paho-mqtt-sys v0.7.0 [INFO] [stderr] Checking async-channel v1.6.1 [INFO] [stderr] Checking crossbeam-channel v0.5.5 [INFO] [stderr] Checking parking_lot v0.12.1 [INFO] [stderr] Compiling quote v1.0.20 [INFO] [stderr] Compiling futures-macro v0.3.21 [INFO] [stderr] Compiling thiserror-impl v1.0.31 [INFO] [stderr] Compiling tokio-macros v1.8.0 [INFO] [stderr] Checking tokio v1.19.2 [INFO] [stderr] Checking futures-util v0.3.21 [INFO] [stderr] Checking thiserror v1.0.31 [INFO] [stderr] Checking futures-executor v0.3.21 [INFO] [stderr] Checking futures v0.3.21 [INFO] [stderr] Checking paho-mqtt v0.11.1 [INFO] [stderr] Checking mqtt-remote-control v0.1.0 (/opt/rustwide/workdir) [INFO] [stdout] warning: unused import: `paho_mqtt::PropertyCode::ResponseTopic` [INFO] [stdout] --> src/mqtt_controller.rs:3:5 [INFO] [stdout] | [INFO] [stdout] 3 | use paho_mqtt::PropertyCode::ResponseTopic; [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_imports)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused import: `paho_mqtt::PropertyCode::ResponseTopic` [INFO] [stdout] --> src/mqtt_controller.rs:3:5 [INFO] [stdout] | [INFO] [stdout] 3 | use paho_mqtt::PropertyCode::ResponseTopic; [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_imports)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `ok` [INFO] [stdout] --> src/mqtt_controller.rs:53:16 [INFO] [stdout] | [INFO] [stdout] 53 | Ok(ok) => { [INFO] [stdout] | ^^ help: if this is intentional, prefix it with an underscore: `_ok` [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_variables)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `ok` [INFO] [stdout] --> src/mqtt_controller.rs:53:16 [INFO] [stdout] | [INFO] [stdout] 53 | Ok(ok) => { [INFO] [stdout] | ^^ help: if this is intentional, prefix it with an underscore: `_ok` [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_variables)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: variable does not need to be mutable [INFO] [stdout] --> src/main.rs:8:9 [INFO] [stdout] | [INFO] [stdout] 8 | let mut controller = MqttAgent::new("ssl://mqtt.sandbox.drogue.cloud:8883".to_string(), Some("python-sender@e2e-demo".to_string()), S... [INFO] [stdout] | ----^^^^^^^^^^ [INFO] [stdout] | | [INFO] [stdout] | help: remove this `mut` [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_mut)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: variable does not need to be mutable [INFO] [stdout] --> src/main.rs:8:9 [INFO] [stdout] | [INFO] [stdout] 8 | let mut controller = MqttAgent::new("ssl://mqtt.sandbox.drogue.cloud:8883".to_string(), Some("python-sender@e2e-demo".to_string()), S... [INFO] [stdout] | ----^^^^^^^^^^ [INFO] [stdout] | | [INFO] [stdout] | help: remove this `mut` [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_mut)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] error: these values and local bindings have significant drop implementation that will have a different drop order from that of Edition 2021 [INFO] [stdout] --> src/main.rs:9:36 [INFO] [stdout] | [INFO] [stdout] 9 | match controller.run_forever().await { [INFO] [stdout] | ^^^^^ these values have significant drop implementation and will observe changes in drop order under Edition 2024 [INFO] [stdout] | [INFO] [stdout] = warning: this changes meaning in Rust 2024 [INFO] [stdout] = note: for more information, see issue #123739 [INFO] [stdout] = note: requested on the command line with `-D tail-expr-drop-order` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] error: these values and local bindings have significant drop implementation that will have a different drop order from that of Edition 2021 [INFO] [stdout] --> src/main.rs:9:36 [INFO] [stdout] | [INFO] [stdout] 9 | match controller.run_forever().await { [INFO] [stdout] | ^^^^^ these values have significant drop implementation and will observe changes in drop order under Edition 2024 [INFO] [stdout] | [INFO] [stdout] = warning: this changes meaning in Rust 2024 [INFO] [stdout] = note: for more information, see issue #123739 [INFO] [stdout] = note: requested on the command line with `-D tail-expr-drop-order` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused `Result` that must be used [INFO] [stdout] --> src/mqtt_controller.rs:68:9 [INFO] [stdout] | [INFO] [stdout] 68 | client.subscribe("command/inbox/+/#", 0).await; [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] 68 | let _ = client.subscribe("command/inbox/+/#", 0).await; [INFO] [stdout] | +++++++ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused `Result` that must be used [INFO] [stdout] --> src/mqtt_controller.rs:68:9 [INFO] [stdout] | [INFO] [stdout] 68 | client.subscribe("command/inbox/+/#", 0).await; [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] 68 | let _ = client.subscribe("command/inbox/+/#", 0).await; [INFO] [stdout] | +++++++ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] error: aborting due to 1 previous error; 4 warnings emitted [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] error: aborting due to 1 previous error; 4 warnings emitted [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] error: could not compile `mqtt-remote-control` (bin "mqtt-remote-control") due to 2 previous errors; 4 warnings emitted [INFO] [stderr] warning: build failed, waiting for other jobs to finish... [INFO] [stderr] error: could not compile `mqtt-remote-control` (bin "mqtt-remote-control" test) due to 2 previous errors; 4 warnings emitted [INFO] running `Command { std: "docker" "inspect" "b58dbe77290990f60ae41b15e0d9ae3f66005fe61d86e9f5f1145d9099e7068d", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "b58dbe77290990f60ae41b15e0d9ae3f66005fe61d86e9f5f1145d9099e7068d", kill_on_drop: false }` [INFO] [stdout] b58dbe77290990f60ae41b15e0d9ae3f66005fe61d86e9f5f1145d9099e7068d