[INFO] fetching crate singleflight-async 0.1.3... [INFO] checking singleflight-async-0.1.3 against try#4d98531622e1718ae0bc3c7a1ab9cd8938428452+rustflags=-Dtail_expr_drop_order for pr-129604 [INFO] extracting crate singleflight-async 0.1.3 into /workspace/builds/worker-2-tc2/source [INFO] validating manifest of crates.io crate singleflight-async 0.1.3 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 singleflight-async 0.1.3 [INFO] removed 0 missing examples [INFO] finished tweaking crates.io crate singleflight-async 0.1.3 [INFO] tweaked toml for crates.io crate singleflight-async 0.1.3 written to /workspace/builds/worker-2-tc2/source/Cargo.toml [INFO] crate crates.io crate singleflight-async 0.1.3 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-2-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-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] 245f32b1e68248b5f27c386811449b7601d738e4fc9a99bc727a2bf7c05d7ed8 [INFO] running `Command { std: "docker" "start" "-a" "245f32b1e68248b5f27c386811449b7601d738e4fc9a99bc727a2bf7c05d7ed8", kill_on_drop: false }` [INFO] running `Command { std: "docker" "inspect" "245f32b1e68248b5f27c386811449b7601d738e4fc9a99bc727a2bf7c05d7ed8", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "245f32b1e68248b5f27c386811449b7601d738e4fc9a99bc727a2bf7c05d7ed8", kill_on_drop: false }` [INFO] [stdout] 245f32b1e68248b5f27c386811449b7601d738e4fc9a99bc727a2bf7c05d7ed8 [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-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] 18ec433a2b8862fc7f43f4430ee70bb50e9eed35db33533cb8ea4f553a918aa6 [INFO] running `Command { std: "docker" "start" "-a" "18ec433a2b8862fc7f43f4430ee70bb50e9eed35db33533cb8ea4f553a918aa6", kill_on_drop: false }` [INFO] [stderr] Compiling libc v0.2.155 [INFO] [stderr] Compiling lock_api v0.4.12 [INFO] [stderr] Compiling parking_lot_core v0.9.10 [INFO] [stderr] Checking scopeguard v1.2.0 [INFO] [stderr] Checking smallvec v1.13.2 [INFO] [stderr] Checking futures-task v0.3.30 [INFO] [stderr] Checking futures-core v0.3.30 [INFO] [stderr] Compiling quote v1.0.36 [INFO] [stderr] Compiling syn v2.0.68 [INFO] [stderr] Checking num_cpus v1.16.0 [INFO] [stderr] Checking parking_lot v0.12.3 [INFO] [stderr] Compiling tokio-macros v2.3.0 [INFO] [stderr] Compiling futures-macro v0.3.30 [INFO] [stderr] Checking tokio v1.38.0 [INFO] [stderr] Checking futures-util v0.3.30 [INFO] [stderr] Checking singleflight-async v0.1.3 (/opt/rustwide/workdir) [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:75:13 [INFO] [stdout] | [INFO] [stdout] 73 | let shared = Arc::new(Shared::default()); [INFO] [stdout] | ------ these values have significant drop implementation and will observe changes in drop order under Edition 2024 [INFO] [stdout] 74 | ( [INFO] [stdout] 75 | / Self { [INFO] [stdout] 76 | | shared: Arc::downgrade(&shared), [INFO] [stdout] 77 | | }, [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/lib.rs:110:12 [INFO] [stdout] | [INFO] [stdout] 103 | func: F, [INFO] [stdout] | ------- these values have significant drop implementation and will observe changes in drop order under Edition 2024 [INFO] [stdout] 104 | key: Cow<'static, str>, [INFO] [stdout] 105 | mapping: SharedMapping, [INFO] [stdout] | ------------------------- these values have significant drop implementation and will observe changes in drop order under Edition 2024 [INFO] [stdout] 106 | ) -> Result, (F, Cow<'static, str>, SharedMapping)> { [INFO] [stdout] 107 | let Some(upgraded) = self.shared.upgrade() else { [INFO] [stdout] | -------- these values have significant drop implementation and will observe changes in drop order under Edition 2024 [INFO] [stdout] ... [INFO] [stdout] 110 | Ok(BroadcastOnceWaiter { [INFO] [stdout] | ____________^ [INFO] [stdout] 111 | | func, [INFO] [stdout] 112 | | shared: upgraded, [INFO] [stdout] 113 | | key, [INFO] [stdout] 114 | | mapping, [INFO] [stdout] 115 | | }) [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 [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] error: could not compile `singleflight-async` (lib) due to 3 previous errors [INFO] [stderr] warning: build failed, waiting for other jobs to finish... [INFO] running `Command { std: "docker" "inspect" "18ec433a2b8862fc7f43f4430ee70bb50e9eed35db33533cb8ea4f553a918aa6", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "18ec433a2b8862fc7f43f4430ee70bb50e9eed35db33533cb8ea4f553a918aa6", kill_on_drop: false }` [INFO] [stdout] 18ec433a2b8862fc7f43f4430ee70bb50e9eed35db33533cb8ea4f553a918aa6