[INFO] fetching crate futex_channel 0.0.0... [INFO] checking futex_channel-0.0.0 against try#4d98531622e1718ae0bc3c7a1ab9cd8938428452+rustflags=-Dtail_expr_drop_order for pr-129604 [INFO] extracting crate futex_channel 0.0.0 into /workspace/builds/worker-2-tc2/source [INFO] validating manifest of crates.io crate futex_channel 0.0.0 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 futex_channel 0.0.0 [INFO] finished tweaking crates.io crate futex_channel 0.0.0 [INFO] tweaked toml for crates.io crate futex_channel 0.0.0 written to /workspace/builds/worker-2-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 6 packages to latest compatible versions [INFO] [stderr] Adding hermit-abi v0.3.9 (latest: v0.4.0) [INFO] [stderr] Adding linux-futex v0.1.2 (latest: v1.0.0) [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-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] b4f188cba0bdd6c9de52572cbe20313f40e763df2b207f1fd59768c59e67a14b [INFO] running `Command { std: "docker" "start" "-a" "b4f188cba0bdd6c9de52572cbe20313f40e763df2b207f1fd59768c59e67a14b", kill_on_drop: false }` [INFO] running `Command { std: "docker" "inspect" "b4f188cba0bdd6c9de52572cbe20313f40e763df2b207f1fd59768c59e67a14b", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "b4f188cba0bdd6c9de52572cbe20313f40e763df2b207f1fd59768c59e67a14b", kill_on_drop: false }` [INFO] [stdout] b4f188cba0bdd6c9de52572cbe20313f40e763df2b207f1fd59768c59e67a14b [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] 11466d4fbb0541827097dddfa5c5d01e0103bd5a91e51fc515497689fec187f2 [INFO] running `Command { std: "docker" "start" "-a" "11466d4fbb0541827097dddfa5c5d01e0103bd5a91e51fc515497689fec187f2", kill_on_drop: false }` [INFO] [stderr] Checking linux-futex v0.1.2 [INFO] [stderr] Checking threadpool v1.8.1 [INFO] [stderr] Checking futex_channel v0.0.0 (/opt/rustwide/workdir) [INFO] [stdout] warning: method `push_front` is never used [INFO] [stdout] --> src/inner.rs:65:19 [INFO] [stdout] | [INFO] [stdout] 19 | impl Inner { [INFO] [stdout] | ---------------- method in this implementation [INFO] [stdout] ... [INFO] [stdout] 65 | pub(crate) fn push_front(&self, obj: T) -> AppendResult { [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/lib.rs:52:9 [INFO] [stdout] | [INFO] [stdout] 50 | let inner = Arc::new(Inner::new()); [INFO] [stdout] | ----- these values have significant drop implementation and will observe changes in drop order under Edition 2024 [INFO] [stdout] 51 | ( [INFO] [stdout] 52 | / Sender { [INFO] [stdout] 53 | | inner: inner.clone(), [INFO] [stdout] 54 | | }, [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:55:9 [INFO] [stdout] | [INFO] [stdout] 50 | let inner = Arc::new(Inner::new()); [INFO] [stdout] | ----- these values have significant drop implementation and will observe changes in drop order under Edition 2024 [INFO] [stdout] ... [INFO] [stdout] 55 | Receiver { inner }, [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/inner.rs:109:18 [INFO] [stdout] | [INFO] [stdout] 108 | fn new_boxed(obj: T) -> Box { [INFO] [stdout] | ------ these values have significant drop implementation and will observe changes in drop order under Edition 2024 [INFO] [stdout] 109 | Box::new(Message { [INFO] [stdout] | __________________^ [INFO] [stdout] 110 | | next: atomic_null(), [INFO] [stdout] 111 | | data: obj, [INFO] [stdout] 112 | | }) [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 3 previous errors; 1 warning emitted [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] error: could not compile `futex_channel` (lib) due to 4 previous errors; 1 warning 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/lib.rs:52:9 [INFO] [stdout] | [INFO] [stdout] 50 | let inner = Arc::new(Inner::new()); [INFO] [stdout] | ----- these values have significant drop implementation and will observe changes in drop order under Edition 2024 [INFO] [stdout] 51 | ( [INFO] [stdout] 52 | / Sender { [INFO] [stdout] 53 | | inner: inner.clone(), [INFO] [stdout] 54 | | }, [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:55:9 [INFO] [stdout] | [INFO] [stdout] 50 | let inner = Arc::new(Inner::new()); [INFO] [stdout] | ----- these values have significant drop implementation and will observe changes in drop order under Edition 2024 [INFO] [stdout] ... [INFO] [stdout] 55 | Receiver { inner }, [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/inner.rs:109:18 [INFO] [stdout] | [INFO] [stdout] 108 | fn new_boxed(obj: T) -> Box { [INFO] [stdout] | ------ these values have significant drop implementation and will observe changes in drop order under Edition 2024 [INFO] [stdout] 109 | Box::new(Message { [INFO] [stdout] | __________________^ [INFO] [stdout] 110 | | next: atomic_null(), [INFO] [stdout] 111 | | data: obj, [INFO] [stdout] 112 | | }) [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 3 previous errors [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] error: could not compile `futex_channel` (lib test) due to 4 previous errors [INFO] running `Command { std: "docker" "inspect" "11466d4fbb0541827097dddfa5c5d01e0103bd5a91e51fc515497689fec187f2", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "11466d4fbb0541827097dddfa5c5d01e0103bd5a91e51fc515497689fec187f2", kill_on_drop: false }` [INFO] [stdout] 11466d4fbb0541827097dddfa5c5d01e0103bd5a91e51fc515497689fec187f2