[INFO] fetching crate tracing-libatrace 0.1.0... [INFO] checking tracing-libatrace-0.1.0 against try#4d98531622e1718ae0bc3c7a1ab9cd8938428452+rustflags=-Dtail_expr_drop_order for pr-129604 [INFO] extracting crate tracing-libatrace 0.1.0 into /workspace/builds/worker-3-tc2/source [INFO] validating manifest of crates.io crate tracing-libatrace 0.1.0 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 tracing-libatrace 0.1.0 [INFO] removed 0 missing examples [INFO] finished tweaking crates.io crate tracing-libatrace 0.1.0 [INFO] tweaked toml for crates.io crate tracing-libatrace 0.1.0 written to /workspace/builds/worker-3-tc2/source/Cargo.toml [INFO] crate crates.io crate tracing-libatrace 0.1.0 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-3-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-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] e2a4da77eb20bc157143195acf063bbd6ab31cd0977d73812b1a6f8e11415979 [INFO] running `Command { std: "docker" "start" "-a" "e2a4da77eb20bc157143195acf063bbd6ab31cd0977d73812b1a6f8e11415979", kill_on_drop: false }` [INFO] running `Command { std: "docker" "inspect" "e2a4da77eb20bc157143195acf063bbd6ab31cd0977d73812b1a6f8e11415979", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "e2a4da77eb20bc157143195acf063bbd6ab31cd0977d73812b1a6f8e11415979", kill_on_drop: false }` [INFO] [stdout] e2a4da77eb20bc157143195acf063bbd6ab31cd0977d73812b1a6f8e11415979 [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-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] 3fddc8c4d13e40ae0eb84c182c44873bae55844f192f09b337c7f3bff35964f6 [INFO] running `Command { std: "docker" "start" "-a" "3fddc8c4d13e40ae0eb84c182c44873bae55844f192f09b337c7f3bff35964f6", kill_on_drop: false }` [INFO] [stderr] Compiling proc-macro2 v1.0.39 [INFO] [stderr] Compiling unicode-ident v1.0.0 [INFO] [stderr] Compiling syn v1.0.96 [INFO] [stderr] Compiling libc v0.2.126 [INFO] [stderr] Compiling futures-core v0.3.21 [INFO] [stderr] Compiling log v0.4.17 [INFO] [stderr] Checking pin-project-lite v0.2.9 [INFO] [stderr] Compiling memchr v2.5.0 [INFO] [stderr] Checking slab v0.4.6 [INFO] [stderr] Checking cfg-if v0.1.10 [INFO] [stderr] Compiling futures-task v0.3.21 [INFO] [stderr] Checking futures-sink v0.3.21 [INFO] [stderr] Compiling futures-channel v0.3.21 [INFO] [stderr] Compiling futures-util v0.3.21 [INFO] [stderr] Checking tracing-core v0.1.26 [INFO] [stderr] Checking once_cell v1.12.0 [INFO] [stderr] Checking futures-io v0.3.21 [INFO] [stderr] Checking sharded-slab v0.1.4 [INFO] [stderr] Checking bytes v0.5.6 [INFO] [stderr] Checking fnv v1.0.7 [INFO] [stderr] Checking pin-project-lite v0.1.12 [INFO] [stderr] Checking thread_local v1.1.4 [INFO] [stderr] Checking tracing-log v0.1.3 [INFO] [stderr] Checking tracing-subscriber v0.3.11 [INFO] [stderr] Compiling quote v1.0.18 [INFO] [stderr] Checking net2 v0.2.37 [INFO] [stderr] Checking iovec v0.1.4 [INFO] [stderr] Checking num_cpus v1.13.1 [INFO] [stderr] Checking signal-hook-registry v1.4.0 [INFO] [stderr] Checking libatrace v0.1.0 [INFO] [stderr] Checking mio v0.6.23 [INFO] [stderr] Checking mio-uds v0.6.8 [INFO] [stderr] Compiling tracing-attributes v0.1.21 [INFO] [stderr] Compiling pin-project-internal v1.0.10 [INFO] [stderr] Compiling futures-macro v0.3.21 [INFO] [stderr] Compiling tokio-macros v0.2.6 [INFO] [stderr] Checking tracing v0.1.34 [INFO] [stderr] Checking pin-project v1.0.10 [INFO] [stderr] Checking tokio v0.2.25 [INFO] [stderr] Checking tracing-futures v0.2.5 [INFO] [stderr] Checking tracing-libatrace v0.1.0 (/opt/rustwide/workdir) [INFO] [stderr] Checking futures-executor v0.3.21 [INFO] [stderr] Checking futures v0.3.21 [INFO] [stderr] Checking tokio-util v0.2.0 [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] --> examples/chat.rs:202:21 [INFO] [stdout] | [INFO] [stdout] 200 | let result: Option<_> = futures::ready!(Pin::new(&mut self.lines).poll_next(cx)); [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] 201 | [INFO] [stdout] 202 | Poll::Ready(match result { [INFO] [stdout] | _____________________^ [INFO] [stdout] 203 | | // We've received a message we should broadcast to others. [INFO] [stdout] 204 | | Some(Ok(message)) => Some(Ok(Message::Broadcast(message))), [INFO] [stdout] ... | [INFO] [stdout] 210 | | None => None, [INFO] [stdout] 211 | | }) [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 [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] error: could not compile `tracing-libatrace` (example "chat") due to 2 previous errors [INFO] running `Command { std: "docker" "inspect" "3fddc8c4d13e40ae0eb84c182c44873bae55844f192f09b337c7f3bff35964f6", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "3fddc8c4d13e40ae0eb84c182c44873bae55844f192f09b337c7f3bff35964f6", kill_on_drop: false }` [INFO] [stdout] 3fddc8c4d13e40ae0eb84c182c44873bae55844f192f09b337c7f3bff35964f6