[INFO] fetching crate bitreader_async 0.2.0... [INFO] checking bitreader_async-0.2.0 against try#4d98531622e1718ae0bc3c7a1ab9cd8938428452+rustflags=-Dtail_expr_drop_order for pr-129604 [INFO] extracting crate bitreader_async 0.2.0 into /workspace/builds/worker-6-tc2/source [INFO] validating manifest of crates.io crate bitreader_async 0.2.0 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 bitreader_async 0.2.0 [INFO] finished tweaking crates.io crate bitreader_async 0.2.0 [INFO] tweaked toml for crates.io crate bitreader_async 0.2.0 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 109 packages to latest compatible versions [INFO] [stderr] Adding addr2line v0.22.0 (latest: v0.24.1) [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 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 gimli v0.29.0 (latest: v0.31.0) [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 miniz_oxide v0.7.4 (latest: v0.8.0) [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 synstructure v0.12.6 (latest: v0.13.1) [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-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] 5dec52a1e628bfd7b8db865c8e72353345b6936181d62171fd7daa8a8c67ec20 [INFO] running `Command { std: "docker" "start" "-a" "5dec52a1e628bfd7b8db865c8e72353345b6936181d62171fd7daa8a8c67ec20", kill_on_drop: false }` [INFO] running `Command { std: "docker" "inspect" "5dec52a1e628bfd7b8db865c8e72353345b6936181d62171fd7daa8a8c67ec20", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "5dec52a1e628bfd7b8db865c8e72353345b6936181d62171fd7daa8a8c67ec20", kill_on_drop: false }` [INFO] [stdout] 5dec52a1e628bfd7b8db865c8e72353345b6936181d62171fd7daa8a8c67ec20 [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] 0f8aeadefecf44ee41e0aaa29af6bc2225eba3f69aca6430c9e68bb080a105b8 [INFO] running `Command { std: "docker" "start" "-a" "0f8aeadefecf44ee41e0aaa29af6bc2225eba3f69aca6430c9e68bb080a105b8", kill_on_drop: false }` [INFO] [stderr] Compiling libc v0.2.158 [INFO] [stderr] Compiling syn v1.0.109 [INFO] [stderr] Compiling rustix v0.38.35 [INFO] [stderr] Compiling io-lifetimes v1.0.11 [INFO] [stderr] Checking linux-raw-sys v0.4.14 [INFO] [stderr] Checking futures-lite v2.3.0 [INFO] [stderr] Checking value-bag v1.9.0 [INFO] [stderr] Checking tracing-core v0.1.32 [INFO] [stderr] Compiling polling v2.8.0 [INFO] [stderr] Checking async-task v4.7.1 [INFO] [stderr] Checking atomic-waker v1.1.2 [INFO] [stderr] Checking concurrent-queue v2.5.0 [INFO] [stderr] Compiling rustix v0.37.27 [INFO] [stderr] Compiling async-io v1.13.0 [INFO] [stderr] Checking linux-raw-sys v0.3.8 [INFO] [stderr] Checking async-lock v2.8.0 [INFO] [stderr] Checking piper v0.2.4 [INFO] [stderr] Checking object v0.36.4 [INFO] [stderr] Compiling syn v2.0.77 [INFO] [stderr] Checking event-listener v5.3.1 [INFO] [stderr] Checking async-channel v1.9.0 [INFO] [stderr] Checking log v0.4.22 [INFO] [stderr] Checking bit_reverse v0.1.8 [INFO] [stderr] Checking tracing v0.1.40 [INFO] [stderr] Checking event-listener-strategy v0.5.2 [INFO] [stderr] Checking async-lock v3.4.0 [INFO] [stderr] Checking async-channel v2.3.1 [INFO] [stderr] Checking kv-log-macro v1.0.7 [INFO] [stderr] Checking blocking v1.6.1 [INFO] [stderr] Checking async-executor v1.13.0 [INFO] [stderr] Checking socket2 v0.4.10 [INFO] [stderr] Compiling synstructure v0.12.6 [INFO] [stderr] Compiling failure_derive v0.1.8 [INFO] [stderr] Compiling async-attributes v1.1.2 [INFO] [stderr] Checking backtrace v0.3.73 [INFO] [stderr] Checking polling v3.7.3 [INFO] [stderr] Checking failure v0.1.8 [INFO] [stderr] Compiling async-trait v0.1.81 [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 bitreader_async v0.2.0 (/opt/rustwide/workdir) [INFO] [stdout] warning: method `truncate` is never used [INFO] [stdout] --> src/truncate.rs:2:8 [INFO] [stdout] | [INFO] [stdout] 1 | pub trait TruncateTo { [INFO] [stdout] | ---------- method in this trait [INFO] [stdout] 2 | fn truncate(&self) -> T; [INFO] [stdout] | ^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(dead_code)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: trait `WidenTo` is never used [INFO] [stdout] --> src/truncate.rs:5:7 [INFO] [stdout] | [INFO] [stdout] 5 | trait WidenTo { [INFO] [stdout] | ^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: associated function `from_be` is never used [INFO] [stdout] --> src/byte_reader.rs:16:8 [INFO] [stdout] | [INFO] [stdout] 14 | pub trait FromBigEndian : Sized [INFO] [stdout] | ------------- associated function in this trait [INFO] [stdout] 15 | { [INFO] [stdout] 16 | fn from_be(int_bytes : Self) -> Self; [INFO] [stdout] | ^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: associated function `from_le` is never used [INFO] [stdout] --> src/byte_reader.rs:21:8 [INFO] [stdout] | [INFO] [stdout] 19 | pub trait FromLittleEndian : Sized [INFO] [stdout] | ---------------- associated function in this trait [INFO] [stdout] 20 | { [INFO] [stdout] 21 | fn from_le(int_bytes : Self) -> Self; [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/lib.rs:32:22 [INFO] [stdout] | [INFO] [stdout] 28 | pub fn new(reader : R) -> BitReader [INFO] [stdout] | ---------- these values have significant drop implementation and will observe changes in drop order under Edition 2024 [INFO] [stdout] ... [INFO] [stdout] 32 | reader : BufReader::new(reader), [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; 4 warnings emitted [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] error: could not compile `bitreader_async` (lib) due to 2 previous errors; 4 warnings emitted [INFO] [stderr] warning: build failed, waiting for other jobs to finish... [INFO] [stdout] warning: method `truncate` is never used [INFO] [stdout] --> src/truncate.rs:2:8 [INFO] [stdout] | [INFO] [stdout] 1 | pub trait TruncateTo { [INFO] [stdout] | ---------- method in this trait [INFO] [stdout] 2 | fn truncate(&self) -> T; [INFO] [stdout] | ^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(dead_code)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: trait `WidenTo` is never used [INFO] [stdout] --> src/truncate.rs:5:7 [INFO] [stdout] | [INFO] [stdout] 5 | trait WidenTo { [INFO] [stdout] | ^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: associated function `from_be` is never used [INFO] [stdout] --> src/byte_reader.rs:16:8 [INFO] [stdout] | [INFO] [stdout] 14 | pub trait FromBigEndian : Sized [INFO] [stdout] | ------------- associated function in this trait [INFO] [stdout] 15 | { [INFO] [stdout] 16 | fn from_be(int_bytes : Self) -> Self; [INFO] [stdout] | ^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: associated function `from_le` is never used [INFO] [stdout] --> src/byte_reader.rs:21:8 [INFO] [stdout] | [INFO] [stdout] 19 | pub trait FromLittleEndian : Sized [INFO] [stdout] | ---------------- associated function in this trait [INFO] [stdout] 20 | { [INFO] [stdout] 21 | fn from_le(int_bytes : Self) -> Self; [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/lib.rs:32:22 [INFO] [stdout] | [INFO] [stdout] 28 | pub fn new(reader : R) -> BitReader [INFO] [stdout] | ---------- these values have significant drop implementation and will observe changes in drop order under Edition 2024 [INFO] [stdout] ... [INFO] [stdout] 32 | reader : BufReader::new(reader), [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; 4 warnings emitted [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] error: could not compile `bitreader_async` (lib test) due to 2 previous errors; 4 warnings emitted [INFO] running `Command { std: "docker" "inspect" "0f8aeadefecf44ee41e0aaa29af6bc2225eba3f69aca6430c9e68bb080a105b8", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "0f8aeadefecf44ee41e0aaa29af6bc2225eba3f69aca6430c9e68bb080a105b8", kill_on_drop: false }` [INFO] [stdout] 0f8aeadefecf44ee41e0aaa29af6bc2225eba3f69aca6430c9e68bb080a105b8