[INFO] cloning repository https://github.com/boymaas/rust-agents [INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/boymaas/rust-agents" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fboymaas%2Frust-agents", kill_on_drop: false }` [INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fboymaas%2Frust-agents'... [INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }` [INFO] [stdout] ae86f25fcdefb3e1a390466c4fc7227404bd2bae [INFO] checking boymaas/rust-agents/ae86f25fcdefb3e1a390466c4fc7227404bd2bae 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%2Fboymaas%2Frust-agents" "/workspace/builds/worker-6-tc2/source", kill_on_drop: false }` [INFO] [stderr] Cloning into '/workspace/builds/worker-6-tc2/source'... [INFO] [stderr] done. [INFO] validating manifest of git repo https://github.com/boymaas/rust-agents 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/boymaas/rust-agents [INFO] finished tweaking git repo https://github.com/boymaas/rust-agents [INFO] tweaked toml for git repo https://github.com/boymaas/rust-agents written to /workspace/builds/worker-6-tc2/source/Cargo.toml [INFO] crate git repo https://github.com/boymaas/rust-agents 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] [stderr] Blocking waiting for file lock on package cache [INFO] [stderr] Blocking waiting for file lock on package cache [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-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] da317c530a9d6486a8748c5b7c7b9da46f3f2a1e4a87f4f8e902598b60df8975 [INFO] running `Command { std: "docker" "start" "-a" "da317c530a9d6486a8748c5b7c7b9da46f3f2a1e4a87f4f8e902598b60df8975", kill_on_drop: false }` [INFO] running `Command { std: "docker" "inspect" "da317c530a9d6486a8748c5b7c7b9da46f3f2a1e4a87f4f8e902598b60df8975", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "da317c530a9d6486a8748c5b7c7b9da46f3f2a1e4a87f4f8e902598b60df8975", kill_on_drop: false }` [INFO] [stdout] da317c530a9d6486a8748c5b7c7b9da46f3f2a1e4a87f4f8e902598b60df8975 [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-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] 77aa64cdf00faa8a2c5d2d513c1fb769aa9a32e6b1d989bdf6a48d2b1ec58bb7 [INFO] running `Command { std: "docker" "start" "-a" "77aa64cdf00faa8a2c5d2d513c1fb769aa9a32e6b1d989bdf6a48d2b1ec58bb7", kill_on_drop: false }` [INFO] [stderr] Compiling proc-macro2 v1.0.10 [INFO] [stderr] Compiling syn v1.0.17 [INFO] [stderr] Compiling libc v0.2.68 [INFO] [stderr] Compiling cc v1.0.50 [INFO] [stderr] Compiling serde v1.0.106 [INFO] [stderr] Compiling byteorder v1.3.4 [INFO] [stderr] Compiling failure_derive v0.1.7 [INFO] [stderr] Compiling memchr v2.3.3 [INFO] [stderr] Checking bytes v0.5.4 [INFO] [stderr] Checking fnv v1.0.6 [INFO] [stderr] Checking pin-project-lite v0.1.4 [INFO] [stderr] Compiling backtrace-sys v0.1.35 [INFO] [stderr] Compiling quote v1.0.3 [INFO] [stderr] Checking getrandom v0.1.14 [INFO] [stderr] Checking rand_core v0.5.1 [INFO] [stderr] Checking rand_chacha v0.2.2 [INFO] [stderr] Checking rand v0.7.3 [INFO] [stderr] Checking backtrace v0.3.46 [INFO] [stderr] Compiling synstructure v0.12.3 [INFO] [stderr] Compiling serde_derive v1.0.106 [INFO] [stderr] Compiling tokio-macros v0.2.5 [INFO] [stderr] Checking tokio v0.2.17 [INFO] [stderr] Checking failure v0.1.7 [INFO] [stderr] Checking bincode v1.2.1 [INFO] [stderr] Checking agents v0.1.0 (/opt/rustwide/workdir) [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/message_generator/message.rs:3:28 [INFO] [stdout] | [INFO] [stdout] 3 | #[derive(Debug, Serialize, Deserialize)] [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] = note: this error originates in the macro `try` (in Nightly builds, run with -Z macro-backtrace for more info) [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/message_recorder.rs:28:12 [INFO] [stdout] | [INFO] [stdout] 20 | let (tx,rx) = channel::(10); [INFO] [stdout] | -- -- these values have significant drop implementation and will observe changes in drop order under Edition 2024 [INFO] [stdout] | | [INFO] [stdout] | these values have significant drop implementation and will observe changes in drop order under Edition 2024 [INFO] [stdout] 21 | [INFO] [stdout] 22 | let (ctx,crx) = channel::<(Ctrl, oneshot::Sender)>(10); [INFO] [stdout] | --- --- these values have significant drop implementation and will observe changes in drop order under Edition 2024 [INFO] [stdout] | | [INFO] [stdout] | these values have significant drop implementation and will observe changes in drop order under Edition 2024 [INFO] [stdout] ... [INFO] [stdout] 28 | Ok(MessageRecorder { ctrl: ctx }) [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = warning: this changes meaning in Rust 2024 [INFO] [stdout] = note: for more information, see issue #123739 [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/message_subject_scanner.rs:33:12 [INFO] [stdout] | [INFO] [stdout] 27 | let (tx,rx) = channel::(10); [INFO] [stdout] | -- -- these values have significant drop implementation and will observe changes in drop order under Edition 2024 [INFO] [stdout] | | [INFO] [stdout] | these values have significant drop implementation and will observe changes in drop order under Edition 2024 [INFO] [stdout] 28 | [INFO] [stdout] 29 | let (ctx,crx) = channel::(10); [INFO] [stdout] | --- --- these values have significant drop implementation and will observe changes in drop order under Edition 2024 [INFO] [stdout] | | [INFO] [stdout] | these values have significant drop implementation and will observe changes in drop order under Edition 2024 [INFO] [stdout] ... [INFO] [stdout] 33 | Ok(MessageSubjectScanner { [INFO] [stdout] | ____________^ [INFO] [stdout] 34 | | subjects: Vec::new(), [INFO] [stdout] 35 | | ctrl: ctx, [INFO] [stdout] 36 | | subjects_rx: rx [INFO] [stdout] 37 | | }) [INFO] [stdout] | |_________^ [INFO] [stdout] | [INFO] [stdout] = warning: this changes meaning in Rust 2024 [INFO] [stdout] = note: for more information, see issue #123739 [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/message_recorder_spawner.rs:28:12 [INFO] [stdout] | [INFO] [stdout] 23 | pub fn spawn(msgss: MessageSubjectScanner) -> Fallible { [INFO] [stdout] | ---------------------------- these values have significant drop implementation and will observe changes in drop order under Edition 2024 [INFO] [stdout] 24 | let (ctx, crx) = channel::(10); [INFO] [stdout] | --- --- these values have significant drop implementation and will observe changes in drop order under Edition 2024 [INFO] [stdout] | | [INFO] [stdout] | these values have significant drop implementation and will observe changes in drop order under Edition 2024 [INFO] [stdout] ... [INFO] [stdout] 28 | Ok(MessageRecorderSpawner { [INFO] [stdout] | ____________^ [INFO] [stdout] 29 | | ctrl_tx: ctx [INFO] [stdout] 30 | | }) [INFO] [stdout] | |_________^ [INFO] [stdout] | [INFO] [stdout] = warning: this changes meaning in Rust 2024 [INFO] [stdout] = note: for more information, see issue #123739 [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused `Result` that must be used [INFO] [stdout] --> src/message_recorder_spawner.rs:34:9 [INFO] [stdout] | [INFO] [stdout] 34 | self.ctrl_tx.send(msg).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] 34 | let _ = self.ctrl_tx.send(msg).await; [INFO] [stdout] | +++++++ [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/message_generator/message.rs:3:28 [INFO] [stdout] | [INFO] [stdout] 3 | #[derive(Debug, Serialize, Deserialize)] [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] = note: this error originates in the macro `try` (in Nightly builds, run with -Z macro-backtrace for more info) [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/message_recorder.rs:28:12 [INFO] [stdout] | [INFO] [stdout] 20 | let (tx,rx) = channel::(10); [INFO] [stdout] | -- -- these values have significant drop implementation and will observe changes in drop order under Edition 2024 [INFO] [stdout] | | [INFO] [stdout] | these values have significant drop implementation and will observe changes in drop order under Edition 2024 [INFO] [stdout] 21 | [INFO] [stdout] 22 | let (ctx,crx) = channel::<(Ctrl, oneshot::Sender)>(10); [INFO] [stdout] | --- --- these values have significant drop implementation and will observe changes in drop order under Edition 2024 [INFO] [stdout] | | [INFO] [stdout] | these values have significant drop implementation and will observe changes in drop order under Edition 2024 [INFO] [stdout] ... [INFO] [stdout] 28 | Ok(MessageRecorder { ctrl: ctx }) [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = warning: this changes meaning in Rust 2024 [INFO] [stdout] = note: for more information, see issue #123739 [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/message_subject_scanner.rs:33:12 [INFO] [stdout] | [INFO] [stdout] 27 | let (tx,rx) = channel::(10); [INFO] [stdout] | -- -- these values have significant drop implementation and will observe changes in drop order under Edition 2024 [INFO] [stdout] | | [INFO] [stdout] | these values have significant drop implementation and will observe changes in drop order under Edition 2024 [INFO] [stdout] 28 | [INFO] [stdout] 29 | let (ctx,crx) = channel::(10); [INFO] [stdout] | --- --- these values have significant drop implementation and will observe changes in drop order under Edition 2024 [INFO] [stdout] | | [INFO] [stdout] | these values have significant drop implementation and will observe changes in drop order under Edition 2024 [INFO] [stdout] ... [INFO] [stdout] 33 | Ok(MessageSubjectScanner { [INFO] [stdout] | ____________^ [INFO] [stdout] 34 | | subjects: Vec::new(), [INFO] [stdout] 35 | | ctrl: ctx, [INFO] [stdout] 36 | | subjects_rx: rx [INFO] [stdout] 37 | | }) [INFO] [stdout] | |_________^ [INFO] [stdout] | [INFO] [stdout] = warning: this changes meaning in Rust 2024 [INFO] [stdout] = note: for more information, see issue #123739 [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/message_recorder_spawner.rs:28:12 [INFO] [stdout] | [INFO] [stdout] 23 | pub fn spawn(msgss: MessageSubjectScanner) -> Fallible { [INFO] [stdout] | ---------------------------- these values have significant drop implementation and will observe changes in drop order under Edition 2024 [INFO] [stdout] 24 | let (ctx, crx) = channel::(10); [INFO] [stdout] | --- --- these values have significant drop implementation and will observe changes in drop order under Edition 2024 [INFO] [stdout] | | [INFO] [stdout] | these values have significant drop implementation and will observe changes in drop order under Edition 2024 [INFO] [stdout] ... [INFO] [stdout] 28 | Ok(MessageRecorderSpawner { [INFO] [stdout] | ____________^ [INFO] [stdout] 29 | | ctrl_tx: ctx [INFO] [stdout] 30 | | }) [INFO] [stdout] | |_________^ [INFO] [stdout] | [INFO] [stdout] = warning: this changes meaning in Rust 2024 [INFO] [stdout] = note: for more information, see issue #123739 [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused `Result` that must be used [INFO] [stdout] --> src/message_recorder_spawner.rs:34:9 [INFO] [stdout] | [INFO] [stdout] 34 | self.ctrl_tx.send(msg).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] 34 | let _ = self.ctrl_tx.send(msg).await; [INFO] [stdout] | +++++++ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] error: aborting due to 4 previous errors; 1 warning emitted [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] error: aborting due to 4 previous errors; 1 warning emitted [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] error: could not compile `agents` (bin "agents" test) due to 5 previous errors; 1 warning emitted [INFO] [stderr] warning: build failed, waiting for other jobs to finish... [INFO] [stderr] error: could not compile `agents` (bin "agents") due to 5 previous errors; 1 warning emitted [INFO] running `Command { std: "docker" "inspect" "77aa64cdf00faa8a2c5d2d513c1fb769aa9a32e6b1d989bdf6a48d2b1ec58bb7", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "77aa64cdf00faa8a2c5d2d513c1fb769aa9a32e6b1d989bdf6a48d2b1ec58bb7", kill_on_drop: false }` [INFO] [stdout] 77aa64cdf00faa8a2c5d2d513c1fb769aa9a32e6b1d989bdf6a48d2b1ec58bb7