[INFO] fetching crate rust_tcp_ipc 0.3.1... [INFO] checking rust_tcp_ipc-0.3.1 against try#4d98531622e1718ae0bc3c7a1ab9cd8938428452+rustflags=-Dtail_expr_drop_order for pr-129604 [INFO] extracting crate rust_tcp_ipc 0.3.1 into /workspace/builds/worker-1-tc2/source [INFO] validating manifest of crates.io crate rust_tcp_ipc 0.3.1 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 crates.io crate rust_tcp_ipc 0.3.1 [INFO] finished tweaking crates.io crate rust_tcp_ipc 0.3.1 [INFO] tweaked toml for crates.io crate rust_tcp_ipc 0.3.1 written to /workspace/builds/worker-1-tc2/source/Cargo.toml [INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+4d98531622e1718ae0bc3c7a1ab9cd8938428452" "generate-lockfile" "--manifest-path" "Cargo.toml", kill_on_drop: false }` [INFO] [stderr] Updating crates.io index [INFO] [stderr] Locking 54 packages to latest compatible versions [INFO] [stderr] Adding arrayvec v0.5.2 (latest: v0.7.6) [INFO] [stderr] Adding base64 v0.13.1 (latest: v0.22.1) [INFO] [stderr] Adding blake2b_simd v0.5.11 (latest: v1.0.2) [INFO] [stderr] Adding constant_time_eq v0.1.5 (latest: v0.3.1) [INFO] [stderr] Adding dirs v1.0.5 (latest: v5.0.1) [INFO] [stderr] Adding getrandom v0.1.16 (latest: v0.2.15) [INFO] [stderr] Adding redox_syscall v0.1.57 (latest: v0.5.3) [INFO] [stderr] Adding redox_users v0.3.5 (latest: v0.4.6) [INFO] [stderr] Adding rust-argon2 v0.8.3 (latest: v2.1.0) [INFO] [stderr] Adding simplelog v0.5.3 (latest: v0.12.2) [INFO] [stderr] Adding term v0.5.2 (latest: v1.0.0) [INFO] [stderr] Adding wasi v0.9.0+wasi-snapshot-preview1 (latest: v0.13.2+wasi-0.2.1) [INFO] [stderr] Adding windows-core v0.52.0 (latest: v0.58.0) [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-1-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-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] 0e24570ab7f9e9f77727eef5c648cbc8633eb23d6f61e0befd058cf29c048dc0 [INFO] running `Command { std: "docker" "start" "-a" "0e24570ab7f9e9f77727eef5c648cbc8633eb23d6f61e0befd058cf29c048dc0", kill_on_drop: false }` [INFO] running `Command { std: "docker" "inspect" "0e24570ab7f9e9f77727eef5c648cbc8633eb23d6f61e0befd058cf29c048dc0", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "0e24570ab7f9e9f77727eef5c648cbc8633eb23d6f61e0befd058cf29c048dc0", kill_on_drop: false }` [INFO] [stdout] 0e24570ab7f9e9f77727eef5c648cbc8633eb23d6f61e0befd058cf29c048dc0 [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-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] 608fa0498a47a892b1deaa7d0479b5c5345a03d5e6cc678ff9bccada3e6a8d96 [INFO] running `Command { std: "docker" "start" "-a" "608fa0498a47a892b1deaa7d0479b5c5345a03d5e6cc678ff9bccada3e6a8d96", kill_on_drop: false }` [INFO] [stderr] Checking log v0.4.22 [INFO] [stderr] Checking dirs v1.0.5 [INFO] [stderr] Checking term v0.5.2 [INFO] [stderr] Checking rust_tcp_ipc v0.3.1 (/opt/rustwide/workdir) [INFO] [stdout] warning: variant `Working` is never constructed [INFO] [stdout] --> src/tests/example_protocol.rs:11:5 [INFO] [stdout] | [INFO] [stdout] 9 | pub enum BusyStatesExample { [INFO] [stdout] | ----------------- variant in this enum [INFO] [stdout] 10 | Idle, [INFO] [stdout] 11 | Working, [INFO] [stdout] | ^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `BusyStatesExample` has derived impls for the traits `Clone` and `Debug`, but these are intentionally ignored during dead code analysis [INFO] [stdout] = note: `#[warn(dead_code)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: function `speed_check_tcp_minimal` is never used [INFO] [stdout] --> src/tests/speed_comparison.rs:6:4 [INFO] [stdout] | [INFO] [stdout] 6 | fn speed_check_tcp_minimal() { [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/tcp_ipc.rs:343:12 [INFO] [stdout] | [INFO] [stdout] 208 | tcp_stream: std::net::TcpStream, [INFO] [stdout] | ------------------------------- these values have significant drop implementation and will observe changes in drop order under Edition 2024 [INFO] [stdout] ... [INFO] [stdout] 220 | let mut tcp_stream_read = tcp_stream [INFO] [stdout] | --------------- these values have significant drop implementation and will observe changes in drop order under Edition 2024 [INFO] [stdout] ... [INFO] [stdout] 223 | let (message_sender, message_receiver) = std::sync::mpsc::channel(); [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] 224 | let (busy_state_sender, busy_state_receiver) = std::sync::mpsc::channel(); [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] 225 | let (busy_state_query_sender, busy_state_query_receiver) = std::sync::mpsc::channel(); [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] 226 | let (busy_state_queried_sender, busy_state_queried_receiver) = std::sync::mpsc::channel(); [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] 227 | let (shutdown_sender, shutdown_receiver) = std::sync::mpsc::channel(); [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] 343 | Ok(TcpIpc { [INFO] [stdout] | ____________^ [INFO] [stdout] 344 | | shutdown_sender, [INFO] [stdout] 345 | | busy_state_sender, [INFO] [stdout] 346 | | message_receiver, [INFO] [stdout] ... | [INFO] [stdout] 350 | | busy_state_queried_receiver, [INFO] [stdout] 351 | | }) [INFO] [stdout] | | ^ [INFO] [stdout] | | | [INFO] [stdout] | | these values have significant drop implementation and will observe changes in drop order under Edition 2024 [INFO] [stdout] | |_________these values have significant drop implementation and will observe changes in drop order under Edition 2024 [INFO] [stdout] | [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: aborting due to 1 previous error; 2 warnings emitted [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] error: could not compile `rust_tcp_ipc` (lib) due to 2 previous errors; 2 warnings emitted [INFO] [stderr] warning: build failed, waiting for other jobs to finish... [INFO] running `Command { std: "docker" "inspect" "608fa0498a47a892b1deaa7d0479b5c5345a03d5e6cc678ff9bccada3e6a8d96", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "608fa0498a47a892b1deaa7d0479b5c5345a03d5e6cc678ff9bccada3e6a8d96", kill_on_drop: false }` [INFO] [stdout] 608fa0498a47a892b1deaa7d0479b5c5345a03d5e6cc678ff9bccada3e6a8d96