[INFO] fetching crate hj_ds 0.1.1... [INFO] checking hj_ds-0.1.1 against try#7014e13d5becc920d4bea3cd87942c8a13d359bf+rustflags=-Dtail_expr_drop_order for pr-129864 [INFO] extracting crate hj_ds 0.1.1 into /workspace/builds/worker-5-tc2/source [INFO] validating manifest of crates.io crate hj_ds 0.1.1 on toolchain 7014e13d5becc920d4bea3cd87942c8a13d359bf [INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+7014e13d5becc920d4bea3cd87942c8a13d359bf" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }` [INFO] started tweaking crates.io crate hj_ds 0.1.1 [INFO] finished tweaking crates.io crate hj_ds 0.1.1 [INFO] tweaked toml for crates.io crate hj_ds 0.1.1 written to /workspace/builds/worker-5-tc2/source/Cargo.toml [INFO] crate crates.io crate hj_ds 0.1.1 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" "+7014e13d5becc920d4bea3cd87942c8a13d359bf" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }` [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-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:ceb6ea022f8a89cebbe621bb4987e73a935bd40dfbb726f832cfff4742a5b95a" "/opt/rustwide/cargo-home/bin/cargo" "+7014e13d5becc920d4bea3cd87942c8a13d359bf" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }` [INFO] [stdout] bdcee66f7e60f03484c30c04e400d2a58f3c4e7718e0a0e7d52169d3cd0460cc [INFO] running `Command { std: "docker" "start" "-a" "bdcee66f7e60f03484c30c04e400d2a58f3c4e7718e0a0e7d52169d3cd0460cc", kill_on_drop: false }` [INFO] running `Command { std: "docker" "inspect" "bdcee66f7e60f03484c30c04e400d2a58f3c4e7718e0a0e7d52169d3cd0460cc", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "bdcee66f7e60f03484c30c04e400d2a58f3c4e7718e0a0e7d52169d3cd0460cc", kill_on_drop: false }` [INFO] [stdout] bdcee66f7e60f03484c30c04e400d2a58f3c4e7718e0a0e7d52169d3cd0460cc [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-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:ceb6ea022f8a89cebbe621bb4987e73a935bd40dfbb726f832cfff4742a5b95a" "/opt/rustwide/cargo-home/bin/cargo" "+7014e13d5becc920d4bea3cd87942c8a13d359bf" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }` [INFO] [stdout] 66b6b9850ce5d12b9940fcf068ec7fc5c09aa21dd42689d7587571b997795771 [INFO] running `Command { std: "docker" "start" "-a" "66b6b9850ce5d12b9940fcf068ec7fc5c09aa21dd42689d7587571b997795771", kill_on_drop: false }` [INFO] [stderr] Compiling libc v0.2.155 [INFO] [stderr] Checking hj_ds v0.1.1 (/opt/rustwide/workdir) [INFO] [stderr] Compiling syn v2.0.74 [INFO] [stdout] error: this value of type `Result>, Rc>>>` has significant drop implementation that will have a different drop order from that of Edition 2021 [INFO] [stdout] --> src/linked_list.rs:286:31 [INFO] [stdout] | [INFO] [stdout] 275 | let sub_sub_tail = sub_tail [INFO] [stdout] | ------------ these local bindings with significant drop implementation may observe changes in drop order under Edition 2024 [INFO] [stdout] ... [INFO] [stdout] 286 | if let Ok(ref_cell) = Rc::try_unwrap(sub_tail) { [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: this value of type `Result>, Rc>>>` has significant drop implementation that will have a different drop order from that of Edition 2021 [INFO] [stdout] --> src/linked_list.rs:315:31 [INFO] [stdout] | [INFO] [stdout] 306 | let sub_sub_head = sub_head [INFO] [stdout] | ------------ these local bindings with significant drop implementation may observe changes in drop order under Edition 2024 [INFO] [stdout] ... [INFO] [stdout] 315 | if let Ok(ref_cell) = Rc::try_unwrap(sub_head) { [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 `hj_ds` (lib) due to 3 previous errors [INFO] [stderr] warning: build failed, waiting for other jobs to finish... [INFO] running `Command { std: "docker" "inspect" "66b6b9850ce5d12b9940fcf068ec7fc5c09aa21dd42689d7587571b997795771", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "66b6b9850ce5d12b9940fcf068ec7fc5c09aa21dd42689d7587571b997795771", kill_on_drop: false }` [INFO] [stdout] 66b6b9850ce5d12b9940fcf068ec7fc5c09aa21dd42689d7587571b997795771