[INFO] fetching crate flatty-io 0.1.0-rc.6... [INFO] checking flatty-io-0.1.0-rc.6 against try#4d98531622e1718ae0bc3c7a1ab9cd8938428452+rustflags=-Dtail_expr_drop_order for pr-129604 [INFO] extracting crate flatty-io 0.1.0-rc.6 into /workspace/builds/worker-4-tc2/source [INFO] validating manifest of crates.io crate flatty-io 0.1.0-rc.6 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 flatty-io 0.1.0-rc.6 [INFO] finished tweaking crates.io crate flatty-io 0.1.0-rc.6 [INFO] tweaked toml for crates.io crate flatty-io 0.1.0-rc.6 written to /workspace/builds/worker-4-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 109 packages to latest compatible versions [INFO] [stderr] Adding async-channel v1.9.0 (latest: v2.3.1) [INFO] [stderr] Adding async-io v1.13.0 (latest: v2.3.4) [INFO] [stderr] Adding async-lock v2.8.0 (latest: v3.4.0) [INFO] [stderr] Adding async-ringbuf v0.2.1 (latest: v0.3.1) [INFO] [stderr] Adding bitflags v1.3.2 (latest: v2.6.0) [INFO] [stderr] Adding event-listener v2.5.3 (latest: v5.3.1) [INFO] [stderr] Adding fastrand v1.9.0 (latest: v2.1.1) [INFO] [stderr] Adding futures-lite v1.13.0 (latest: v2.3.0) [INFO] [stderr] Adding gloo-timers v0.2.6 (latest: v0.3.0) [INFO] [stderr] Adding hermit-abi v0.3.9 (latest: v0.4.0) [INFO] [stderr] Adding io-lifetimes v1.0.11 (latest: v2.0.3) [INFO] [stderr] Adding linux-raw-sys v0.3.8 (latest: v0.6.5) [INFO] [stderr] Adding linux-raw-sys v0.4.14 (latest: v0.6.5) [INFO] [stderr] Adding polling v2.8.0 (latest: v3.7.3) [INFO] [stderr] Adding rustix v0.37.27 (latest: v0.38.35) [INFO] [stderr] Adding socket2 v0.4.10 (latest: v0.5.7) [INFO] [stderr] Adding syn v1.0.109 (latest: v2.0.77) [INFO] [stderr] Adding windows-sys v0.48.0 (latest: v0.59.0) [INFO] [stderr] Adding windows-sys v0.52.0 (latest: v0.59.0) [INFO] [stderr] Adding windows-targets v0.48.5 (latest: v0.52.6) [INFO] [stderr] Adding windows_aarch64_gnullvm v0.48.5 (latest: v0.52.6) [INFO] [stderr] Adding windows_aarch64_msvc v0.48.5 (latest: v0.52.6) [INFO] [stderr] Adding windows_i686_gnu v0.48.5 (latest: v0.52.6) [INFO] [stderr] Adding windows_i686_msvc v0.48.5 (latest: v0.52.6) [INFO] [stderr] Adding windows_x86_64_gnu v0.48.5 (latest: v0.52.6) [INFO] [stderr] Adding windows_x86_64_gnullvm v0.48.5 (latest: v0.52.6) [INFO] [stderr] Adding windows_x86_64_msvc v0.48.5 (latest: v0.52.6) [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-4-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-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] 9e7ba804698715cf8bc55c479231c2f3fc20162405bf25e8fb6b79bfb0d031e2 [INFO] running `Command { std: "docker" "start" "-a" "9e7ba804698715cf8bc55c479231c2f3fc20162405bf25e8fb6b79bfb0d031e2", kill_on_drop: false }` [INFO] running `Command { std: "docker" "inspect" "9e7ba804698715cf8bc55c479231c2f3fc20162405bf25e8fb6b79bfb0d031e2", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "9e7ba804698715cf8bc55c479231c2f3fc20162405bf25e8fb6b79bfb0d031e2", kill_on_drop: false }` [INFO] [stdout] 9e7ba804698715cf8bc55c479231c2f3fc20162405bf25e8fb6b79bfb0d031e2 [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-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] f940d833fdd07660d422fcf5497b45284b89e710ccfd9f31dc4705b3f4de6b2e [INFO] running `Command { std: "docker" "start" "-a" "f940d833fdd07660d422fcf5497b45284b89e710ccfd9f31dc4705b3f4de6b2e", kill_on_drop: false }` [INFO] [stderr] Compiling crossbeam-utils v0.8.20 [INFO] [stderr] Checking futures-io v0.3.30 [INFO] [stderr] Checking parking v2.2.0 [INFO] [stderr] Compiling num-traits v0.2.19 [INFO] [stderr] Compiling syn v1.0.109 [INFO] [stderr] Checking fastrand v2.1.1 [INFO] [stderr] Checking futures-sink v0.3.30 [INFO] [stderr] Compiling rustix v0.38.35 [INFO] [stderr] Checking linux-raw-sys v0.4.14 [INFO] [stderr] Compiling io-lifetimes v1.0.11 [INFO] [stderr] Checking bitflags v2.6.0 [INFO] [stderr] Checking tracing-core v0.1.32 [INFO] [stderr] Checking value-bag v1.9.0 [INFO] [stderr] Compiling polling v2.8.0 [INFO] [stderr] Compiling rustix v0.37.27 [INFO] [stderr] Compiling syn v2.0.77 [INFO] [stderr] Checking atomic-waker v1.1.2 [INFO] [stderr] Checking async-task v4.7.1 [INFO] [stderr] Checking futures-channel v0.3.30 [INFO] [stderr] Checking event-listener v2.5.3 [INFO] [stderr] Compiling async-io v1.13.0 [INFO] [stderr] Checking fastrand v1.9.0 [INFO] [stderr] Checking waker-fn v1.2.0 [INFO] [stderr] Checking linux-raw-sys v0.3.8 [INFO] [stderr] Checking futures-lite v2.3.0 [INFO] [stderr] Checking piper v0.2.4 [INFO] [stderr] Checking async-lock v2.8.0 [INFO] [stderr] Checking log v0.4.22 [INFO] [stderr] Checking socket2 v0.4.10 [INFO] [stderr] Checking futures-lite v1.13.0 [INFO] [stderr] Checking concurrent-queue v2.5.0 [INFO] [stderr] Checking ringbuf v0.4.4 [INFO] [stderr] Checking tracing v0.1.40 [INFO] [stderr] Checking kv-log-macro v1.0.7 [INFO] [stderr] Checking event-listener v5.3.1 [INFO] [stderr] Checking async-channel v1.9.0 [INFO] [stderr] Checking event-listener-strategy v0.5.2 [INFO] [stderr] Checking ringbuf-blocking v0.1.0-rc.3 [INFO] [stderr] Checking async-channel v2.3.1 [INFO] [stderr] Checking async-lock v3.4.0 [INFO] [stderr] Checking stavec v0.3.0 [INFO] [stderr] Checking async-executor v1.13.0 [INFO] [stderr] Checking blocking v1.6.1 [INFO] [stderr] Checking flatty-base v0.1.0-rc.4 [INFO] [stderr] Checking flatty-portable v0.1.0-rc.4 [INFO] [stderr] Compiling futures-macro v0.3.30 [INFO] [stderr] Checking futures-util v0.3.30 [INFO] [stderr] Compiling flatty-macros v0.1.0-rc.4 [INFO] [stderr] Compiling async-attributes v1.1.2 [INFO] [stderr] Checking flatty v0.1.0-rc.4 [INFO] [stderr] Checking polling v3.7.3 [INFO] [stderr] Checking async-io v2.3.4 [INFO] [stderr] Checking async-global-executor v2.4.1 [INFO] [stderr] Checking async-std v1.12.0 [INFO] [stderr] Checking futures-executor v0.3.30 [INFO] [stderr] Checking futures v0.3.30 [INFO] [stderr] Checking async-ringbuf v0.2.1 [INFO] [stderr] Checking flatty-io v0.1.0-rc.6 (/opt/rustwide/workdir) [INFO] [stdout] warning: unused import: `io::*` [INFO] [stdout] --> src/blocking/mod.rs:7:9 [INFO] [stdout] | [INFO] [stdout] 7 | pub use io::*; [INFO] [stdout] | ^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_imports)]` 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/common/io.rs:79:21 [INFO] [stdout] | [INFO] [stdout] 76 | pub fn new(pipe: P, capacity: usize, align: usize) -> Self { [INFO] [stdout] | ------- these values have significant drop implementation and will observe changes in drop order under Edition 2024 [INFO] [stdout] ... [INFO] [stdout] 79 | buffer: Buffer::new(capacity, align), [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] --> src/blocking/recv.rs:40:19 [INFO] [stdout] | [INFO] [stdout] 39 | pub fn io(pipe: P, max_msg_len: usize) -> Self { [INFO] [stdout] | ------- these values have significant drop implementation and will observe changes in drop order under Edition 2024 [INFO] [stdout] 40 | Self::new(IoBuffer::new(pipe, 2 * max_msg_len.max(M::MIN_SIZE), M::ALIGN)) [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/blocking/send.rs:43:19 [INFO] [stdout] | [INFO] [stdout] 42 | pub fn io(pipe: P, max_msg_len: usize) -> Self { [INFO] [stdout] | ------- these values have significant drop implementation and will observe changes in drop order under Edition 2024 [INFO] [stdout] 43 | Self::new(IoBuffer::new(pipe, 2 * max_msg_len.max(M::MIN_SIZE), M::ALIGN)) [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/async_/recv.rs:60:19 [INFO] [stdout] | [INFO] [stdout] 59 | pub fn io(pipe: P, max_msg_len: usize) -> Self { [INFO] [stdout] | ------- these values have significant drop implementation and will observe changes in drop order under Edition 2024 [INFO] [stdout] 60 | Self::new(IoBuffer::new(pipe, 2 * max_msg_len.max(M::MIN_SIZE), M::ALIGN)) [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/async_/send.rs:64:19 [INFO] [stdout] | [INFO] [stdout] 63 | pub fn io(pipe: P, max_msg_len: usize) -> Self { [INFO] [stdout] | ------- these values have significant drop implementation and will observe changes in drop order under Edition 2024 [INFO] [stdout] 64 | Self::new(IoBuffer::new(pipe, 2 * max_msg_len.max(M::MIN_SIZE), M::ALIGN)) [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 5 previous errors; 1 warning emitted [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] error: could not compile `flatty-io` (lib) due to 6 previous errors; 1 warning emitted [INFO] [stderr] warning: build failed, waiting for other jobs to finish... [INFO] running `Command { std: "docker" "inspect" "f940d833fdd07660d422fcf5497b45284b89e710ccfd9f31dc4705b3f4de6b2e", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "f940d833fdd07660d422fcf5497b45284b89e710ccfd9f31dc4705b3f4de6b2e", kill_on_drop: false }` [INFO] [stdout] f940d833fdd07660d422fcf5497b45284b89e710ccfd9f31dc4705b3f4de6b2e