[INFO] fetching crate lv2-core 3.0.0... [INFO] checking lv2-core-3.0.0 against try#4d98531622e1718ae0bc3c7a1ab9cd8938428452+rustflags=-Dtail_expr_drop_order for pr-129604 [INFO] extracting crate lv2-core 3.0.0 into /workspace/builds/worker-6-tc2/source [INFO] validating manifest of crates.io crate lv2-core 3.0.0 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 lv2-core 3.0.0 [INFO] finished tweaking crates.io crate lv2-core 3.0.0 [INFO] tweaked toml for crates.io crate lv2-core 3.0.0 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] Blocking waiting for file lock on package cache [INFO] [stderr] Updating crates.io index [INFO] [stderr] Blocking waiting for file lock on package cache [INFO] [stderr] Locking 9 packages to latest compatible versions [INFO] [stderr] Adding syn v1.0.109 (latest: v2.0.77) [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] fac7fa35416b8f6c77b7292815f6c1f5d4e30664c2690ffb776385012e7d2aac [INFO] running `Command { std: "docker" "start" "-a" "fac7fa35416b8f6c77b7292815f6c1f5d4e30664c2690ffb776385012e7d2aac", kill_on_drop: false }` [INFO] running `Command { std: "docker" "inspect" "fac7fa35416b8f6c77b7292815f6c1f5d4e30664c2690ffb776385012e7d2aac", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "fac7fa35416b8f6c77b7292815f6c1f5d4e30664c2690ffb776385012e7d2aac", kill_on_drop: false }` [INFO] [stdout] fac7fa35416b8f6c77b7292815f6c1f5d4e30664c2690ffb776385012e7d2aac [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] 9817ae3b472dda937d3a3a05156776440ffc47dcd07145f79c3ba7c642e045a7 [INFO] running `Command { std: "docker" "start" "-a" "9817ae3b472dda937d3a3a05156776440ffc47dcd07145f79c3ba7c642e045a7", kill_on_drop: false }` [INFO] [stderr] Checking lv2-sys v2.0.0 [INFO] [stderr] Compiling urid-derive v0.1.1 [INFO] [stderr] Compiling lv2-core-derive v2.1.1 [INFO] [stderr] Checking urid v0.1.0 [INFO] [stderr] Checking lv2-core v3.0.0 (/opt/rustwide/workdir) [INFO] [stdout] warning: fields `feature_a_sys`, `feature_b_sys`, and `feature_c_sys` are never read [INFO] [stdout] --> src/feature/mod.rs:155:13 [INFO] [stdout] | [INFO] [stdout] 153 | struct FeatureTestSetting<'a> { [INFO] [stdout] | ------------------ fields in this struct [INFO] [stdout] 154 | pub data_a: Pin>, [INFO] [stdout] 155 | pub feature_a_sys: Pin>, [INFO] [stdout] | ^^^^^^^^^^^^^ [INFO] [stdout] 156 | pub data_b: Pin>, [INFO] [stdout] 157 | pub feature_b_sys: Pin>, [INFO] [stdout] | ^^^^^^^^^^^^^ [INFO] [stdout] 158 | pub feature_c_sys: Pin>, [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] --> src/plugin/mod.rs:164:15 [INFO] [stdout] | [INFO] [stdout] 144 | let mut init_features = match T::InitFeatures::from_cache( [INFO] [stdout] | ------------- these values have significant drop implementation and will observe changes in drop order under Edition 2024 [INFO] [stdout] ... [INFO] [stdout] 148 | Ok(f) => f, [INFO] [stdout] | - these values have significant drop implementation and will observe changes in drop order under Edition 2024 [INFO] [stdout] ... [INFO] [stdout] 154 | let audio_features = [INFO] [stdout] | -------------- these values have significant drop implementation and will observe changes in drop order under Edition 2024 [INFO] [stdout] 155 | match T::AudioFeatures::from_cache(&mut audio_features_cache, ThreadingClass::Audio) { [INFO] [stdout] 156 | Ok(f) => f, [INFO] [stdout] | - these values have significant drop implementation and will observe changes in drop order under Edition 2024 [INFO] [stdout] ... [INFO] [stdout] 164 | match T::new(&plugin_info, &mut init_features) { [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] warning: unused return value of `Box::::from_raw` that must be used [INFO] [stdout] --> src/plugin/mod.rs:187:9 [INFO] [stdout] | [INFO] [stdout] 187 | Box::from_raw(instance); [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: call `drop(Box::from_raw(ptr))` if you intend to drop the `Box` [INFO] [stdout] = note: `#[warn(unused_must_use)]` on by default [INFO] [stdout] help: use `let _ = ...` to ignore the resulting value [INFO] [stdout] | [INFO] [stdout] 187 | let _ = Box::from_raw(instance); [INFO] [stdout] | +++++++ [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 `lv2-core` (lib test) due to 2 previous errors; 2 warnings emitted [INFO] [stderr] warning: build failed, waiting for other jobs to finish... [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/plugin/mod.rs:164:15 [INFO] [stdout] | [INFO] [stdout] 144 | let mut init_features = match T::InitFeatures::from_cache( [INFO] [stdout] | ------------- these values have significant drop implementation and will observe changes in drop order under Edition 2024 [INFO] [stdout] ... [INFO] [stdout] 148 | Ok(f) => f, [INFO] [stdout] | - these values have significant drop implementation and will observe changes in drop order under Edition 2024 [INFO] [stdout] ... [INFO] [stdout] 154 | let audio_features = [INFO] [stdout] | -------------- these values have significant drop implementation and will observe changes in drop order under Edition 2024 [INFO] [stdout] 155 | match T::AudioFeatures::from_cache(&mut audio_features_cache, ThreadingClass::Audio) { [INFO] [stdout] 156 | Ok(f) => f, [INFO] [stdout] | - these values have significant drop implementation and will observe changes in drop order under Edition 2024 [INFO] [stdout] ... [INFO] [stdout] 164 | match T::new(&plugin_info, &mut init_features) { [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] warning: unused return value of `Box::::from_raw` that must be used [INFO] [stdout] --> src/plugin/mod.rs:187:9 [INFO] [stdout] | [INFO] [stdout] 187 | Box::from_raw(instance); [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: call `drop(Box::from_raw(ptr))` if you intend to drop the `Box` [INFO] [stdout] = note: `#[warn(unused_must_use)]` on by default [INFO] [stdout] help: use `let _ = ...` to ignore the resulting value [INFO] [stdout] | [INFO] [stdout] 187 | let _ = Box::from_raw(instance); [INFO] [stdout] | +++++++ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] error: aborting due to 1 previous error; 1 warning emitted [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] error: could not compile `lv2-core` (lib) due to 2 previous errors; 1 warning emitted [INFO] running `Command { std: "docker" "inspect" "9817ae3b472dda937d3a3a05156776440ffc47dcd07145f79c3ba7c642e045a7", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "9817ae3b472dda937d3a3a05156776440ffc47dcd07145f79c3ba7c642e045a7", kill_on_drop: false }` [INFO] [stdout] 9817ae3b472dda937d3a3a05156776440ffc47dcd07145f79c3ba7c642e045a7