[INFO] fetching crate lwip 0.3.15... [INFO] checking lwip-0.3.15 against try#4d98531622e1718ae0bc3c7a1ab9cd8938428452+rustflags=-Dtail_expr_drop_order for pr-129604 [INFO] extracting crate lwip 0.3.15 into /workspace/builds/worker-6-tc2/source [INFO] validating manifest of crates.io crate lwip 0.3.15 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 lwip 0.3.15 [INFO] finished tweaking crates.io crate lwip 0.3.15 [INFO] tweaked toml for crates.io crate lwip 0.3.15 written to /workspace/builds/worker-6-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 73 packages to latest compatible versions [INFO] [stderr] Adding addr2line v0.22.0 (latest: v0.24.1) [INFO] [stderr] Adding bindgen v0.69.4 (latest: v0.70.1) [INFO] [stderr] Adding gimli v0.29.0 (latest: v0.31.0) [INFO] [stderr] Adding hermit-abi v0.3.9 (latest: v0.4.0) [INFO] [stderr] Adding itertools v0.12.1 (latest: v0.13.0) [INFO] [stderr] Adding linux-raw-sys v0.4.14 (latest: v0.6.5) [INFO] [stderr] Adding miniz_oxide v0.7.4 (latest: v0.8.0) [INFO] [stderr] Adding rustc-hash v1.1.0 (latest: v2.0.0) [INFO] [stderr] Adding wasi v0.11.0+wasi-snapshot-preview1 (latest: v0.13.2+wasi-0.2.1) [INFO] [stderr] Adding which v4.4.2 (latest: v6.0.3) [INFO] [stderr] Adding windows-sys v0.52.0 (latest: v0.59.0) [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-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] 4a6d01ab346c1a2712e6e1720e3223b4ecb994c604fb0c53e785f399550ee242 [INFO] running `Command { std: "docker" "start" "-a" "4a6d01ab346c1a2712e6e1720e3223b4ecb994c604fb0c53e785f399550ee242", kill_on_drop: false }` [INFO] running `Command { std: "docker" "inspect" "4a6d01ab346c1a2712e6e1720e3223b4ecb994c604fb0c53e785f399550ee242", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "4a6d01ab346c1a2712e6e1720e3223b4ecb994c604fb0c53e785f399550ee242", kill_on_drop: false }` [INFO] [stdout] 4a6d01ab346c1a2712e6e1720e3223b4ecb994c604fb0c53e785f399550ee242 [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] c26a0ba62e2faf317f13fc9b8e8e7ebf81728816d3f069a63584e8ac1d0281e3 [INFO] running `Command { std: "docker" "start" "-a" "c26a0ba62e2faf317f13fc9b8e8e7ebf81728816d3f069a63584e8ac1d0281e3", kill_on_drop: false }` [INFO] [stderr] Compiling glob v0.3.1 [INFO] [stderr] Compiling rustix v0.38.35 [INFO] [stderr] Compiling libc v0.2.158 [INFO] [stderr] Compiling prettyplease v0.2.22 [INFO] [stderr] Compiling either v1.13.0 [INFO] [stderr] Compiling linux-raw-sys v0.4.14 [INFO] [stderr] Compiling memchr v2.7.4 [INFO] [stderr] Compiling regex-syntax v0.8.4 [INFO] [stderr] Compiling minimal-lexical v0.2.1 [INFO] [stderr] Compiling cfg-if v1.0.0 [INFO] [stderr] Compiling bitflags v2.6.0 [INFO] [stderr] Compiling home v0.5.9 [INFO] [stderr] Compiling bindgen v0.69.4 [INFO] [stderr] Compiling shlex v1.3.0 [INFO] [stderr] Compiling rustc-hash v1.1.0 [INFO] [stderr] Compiling log v0.4.22 [INFO] [stderr] Compiling libloading v0.8.5 [INFO] [stderr] Compiling lazycell v1.3.0 [INFO] [stderr] Compiling itertools v0.12.1 [INFO] [stderr] Compiling lazy_static v1.5.0 [INFO] [stderr] Checking mio v1.0.2 [INFO] [stderr] Compiling cc v1.1.15 [INFO] [stderr] Checking socket2 v0.5.7 [INFO] [stderr] Compiling clang-sys v1.8.1 [INFO] [stderr] Checking tokio v1.40.0 [INFO] [stderr] Compiling nom v7.1.3 [INFO] [stderr] Compiling regex-automata v0.4.7 [INFO] [stderr] Compiling cexpr v0.6.0 [INFO] [stderr] Compiling which v4.4.2 [INFO] [stderr] Compiling regex v1.10.6 [INFO] [stderr] Compiling lwip v0.3.15 (/opt/rustwide/workdir) [INFO] [stderr] warning: lwip@0.3.15: host os linux [INFO] [stdout] warning: field `remote_addr` is never read [INFO] [stdout] --> rust/tcp_stream_context.rs:14:9 [INFO] [stdout] | [INFO] [stdout] 12 | pub struct TcpStreamContextInner { [INFO] [stdout] | --------------------- field in this struct [INFO] [stdout] 13 | pub local_addr: SocketAddr, [INFO] [stdout] 14 | pub remote_addr: SocketAddr, [INFO] [stdout] | ^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(dead_code)]` 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] --> rust/tcp_stream_context.rs:64:20 [INFO] [stdout] | [INFO] [stdout] 60 | read_tx: UnboundedSender>, [INFO] [stdout] | --------------------------------- these values have significant drop implementation and will observe changes in drop order under Edition 2024 [INFO] [stdout] 61 | read_rx: UnboundedReceiver>, [INFO] [stdout] | ----------------------------------- these values have significant drop implementation and will observe changes in drop order under Edition 2024 [INFO] [stdout] ... [INFO] [stdout] 64 | inner: UnsafeCell::new(TcpStreamContextInner { [INFO] [stdout] | ____________________^ [INFO] [stdout] 65 | | local_addr, [INFO] [stdout] 66 | | remote_addr, [INFO] [stdout] 67 | | read_tx: Some(read_tx), [INFO] [stdout] ... | [INFO] [stdout] 71 | | write_waker: None, [INFO] [stdout] 72 | | }), [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: these values and local bindings have significant drop implementation that will have a different drop order from that of Edition 2021 [INFO] [stdout] --> rust/udp.rs:105:38 [INFO] [stdout] | [INFO] [stdout] 104 | pub fn split(self: Box) -> (SendHalf, RecvHalf) { [INFO] [stdout] | ---- these values have significant drop implementation and will observe changes in drop order under Edition 2024 [INFO] [stdout] 105 | (SendHalf { pcb: self.pcb }, RecvHalf { socket: self }) [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: aborting due to 2 previous errors; 1 warning emitted [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] The following warnings were emitted during compilation: [INFO] [stderr] [INFO] [stderr] warning: lwip@0.3.15: host os linux [INFO] [stderr] [INFO] [stderr] error: could not compile `lwip` (lib test) due to 3 previous errors; 1 warning emitted [INFO] [stderr] warning: build failed, waiting for other jobs to finish... [INFO] [stdout] warning: field `remote_addr` is never read [INFO] [stdout] --> rust/tcp_stream_context.rs:14:9 [INFO] [stdout] | [INFO] [stdout] 12 | pub struct TcpStreamContextInner { [INFO] [stdout] | --------------------- field in this struct [INFO] [stdout] 13 | pub local_addr: SocketAddr, [INFO] [stdout] 14 | pub remote_addr: SocketAddr, [INFO] [stdout] | ^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(dead_code)]` 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] --> rust/tcp_stream_context.rs:64:20 [INFO] [stdout] | [INFO] [stdout] 60 | read_tx: UnboundedSender>, [INFO] [stdout] | --------------------------------- these values have significant drop implementation and will observe changes in drop order under Edition 2024 [INFO] [stdout] 61 | read_rx: UnboundedReceiver>, [INFO] [stdout] | ----------------------------------- these values have significant drop implementation and will observe changes in drop order under Edition 2024 [INFO] [stdout] ... [INFO] [stdout] 64 | inner: UnsafeCell::new(TcpStreamContextInner { [INFO] [stdout] | ____________________^ [INFO] [stdout] 65 | | local_addr, [INFO] [stdout] 66 | | remote_addr, [INFO] [stdout] 67 | | read_tx: Some(read_tx), [INFO] [stdout] ... | [INFO] [stdout] 71 | | write_waker: None, [INFO] [stdout] 72 | | }), [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: these values and local bindings have significant drop implementation that will have a different drop order from that of Edition 2021 [INFO] [stdout] --> rust/udp.rs:105:38 [INFO] [stdout] | [INFO] [stdout] 104 | pub fn split(self: Box) -> (SendHalf, RecvHalf) { [INFO] [stdout] | ---- these values have significant drop implementation and will observe changes in drop order under Edition 2024 [INFO] [stdout] 105 | (SendHalf { pcb: self.pcb }, RecvHalf { socket: self }) [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: aborting due to 2 previous errors; 1 warning emitted [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] The following warnings were emitted during compilation: [INFO] [stderr] [INFO] [stderr] warning: lwip@0.3.15: host os linux [INFO] [stderr] [INFO] [stderr] error: could not compile `lwip` (lib) due to 3 previous errors; 1 warning emitted [INFO] running `Command { std: "docker" "inspect" "c26a0ba62e2faf317f13fc9b8e8e7ebf81728816d3f069a63584e8ac1d0281e3", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "c26a0ba62e2faf317f13fc9b8e8e7ebf81728816d3f069a63584e8ac1d0281e3", kill_on_drop: false }` [INFO] [stdout] c26a0ba62e2faf317f13fc9b8e8e7ebf81728816d3f069a63584e8ac1d0281e3