[INFO] fetching crate leetcode_utils 0.1.5...
[INFO] checking leetcode_utils-0.1.5 against try#4d98531622e1718ae0bc3c7a1ab9cd8938428452+rustflags=-Dtail_expr_drop_order for pr-129604
[INFO] extracting crate leetcode_utils 0.1.5 into /workspace/builds/worker-0-tc2/source
[INFO] validating manifest of crates.io crate leetcode_utils 0.1.5 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 leetcode_utils 0.1.5
[INFO] finished tweaking crates.io crate leetcode_utils 0.1.5
[INFO] tweaked toml for crates.io crate leetcode_utils 0.1.5 written to /workspace/builds/worker-0-tc2/source/Cargo.toml
[INFO] crate crates.io crate leetcode_utils 0.1.5 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] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-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] b06c5060aee67173cbba6a674a4cfa259f7e4bfdf2d18138bbc94661c6845ede
[INFO] running `Command { std: "docker" "start" "-a" "b06c5060aee67173cbba6a674a4cfa259f7e4bfdf2d18138bbc94661c6845ede", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "b06c5060aee67173cbba6a674a4cfa259f7e4bfdf2d18138bbc94661c6845ede", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "b06c5060aee67173cbba6a674a4cfa259f7e4bfdf2d18138bbc94661c6845ede", kill_on_drop: false }`
[INFO] [stdout] b06c5060aee67173cbba6a674a4cfa259f7e4bfdf2d18138bbc94661c6845ede
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-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] 1b9256ee610193a787ad7eb151a3fa6fe32606dfe8eb851fb62a2846e258b940
[INFO] running `Command { std: "docker" "start" "-a" "1b9256ee610193a787ad7eb151a3fa6fe32606dfe8eb851fb62a2846e258b940", kill_on_drop: false }`
[INFO] [stderr]     Checking leetcode_utils v0.1.5 (/opt/rustwide/workdir)
[INFO] [stdout] warning: associated function `new` is never used
[INFO] [stdout]   --> src/linked_lists.rs:12:8
[INFO] [stdout]    |
[INFO] [stdout] 10 | impl ListNode {
[INFO] [stdout]    | ------------- associated function in this implementation
[INFO] [stdout] 11 |     #[inline]
[INFO] [stdout] 12 |     fn new(val: i32) -> Self {
[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/vec_utils.rs:6:5
[INFO] [stdout]   |
[INFO] [stdout] 5 | pub fn to_vec_matrix<const M: usize, const N: usize, T: Clone>(matrix: [[T; N]; M]) -> Vec<Vec<T>> {
[INFO] [stdout]   |                                                                ------------------- these values have significant drop implementation and will observe changes in drop order under Edition 2024
[INFO] [stdout] 6 |     matrix.map(|r| r.to_vec()).to_vec()
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = warning: this changes meaning in Rust 2024
[INFO] [stdout]   = note: for more information, see issue #123739 <https://github.com/rust-lang/rust/issues/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/linked_lists.rs:24:64
[INFO] [stdout]    |
[INFO] [stdout] 24 |     v.iter().rev().fold(None as ListNodeLink,|next, &val| Some(Box::new(ListNode { val, next })))
[INFO] [stdout]    |                                               ----             ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |                                               |
[INFO] [stdout]    |                                               these values have significant drop implementation and will observe changes in drop order under Edition 2024
[INFO] [stdout]    |
[INFO] [stdout]    = warning: this changes meaning in Rust 2024
[INFO] [stdout]    = note: for more information, see issue #123739 <https://github.com/rust-lang/rust/issues/123739>
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to 2 previous errors; 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `leetcode_utils` (lib) due to 3 previous errors; 1 warning emitted
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] [stdout] warning: associated function `new` is never used
[INFO] [stdout]   --> src/linked_lists.rs:12:8
[INFO] [stdout]    |
[INFO] [stdout] 10 | impl ListNode {
[INFO] [stdout]    | ------------- associated function in this implementation
[INFO] [stdout] 11 |     #[inline]
[INFO] [stdout] 12 |     fn new(val: i32) -> Self {
[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/vec_utils.rs:6:5
[INFO] [stdout]   |
[INFO] [stdout] 5 | pub fn to_vec_matrix<const M: usize, const N: usize, T: Clone>(matrix: [[T; N]; M]) -> Vec<Vec<T>> {
[INFO] [stdout]   |                                                                ------------------- these values have significant drop implementation and will observe changes in drop order under Edition 2024
[INFO] [stdout] 6 |     matrix.map(|r| r.to_vec()).to_vec()
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = warning: this changes meaning in Rust 2024
[INFO] [stdout]   = note: for more information, see issue #123739 <https://github.com/rust-lang/rust/issues/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/linked_lists.rs:24:64
[INFO] [stdout]    |
[INFO] [stdout] 24 |     v.iter().rev().fold(None as ListNodeLink,|next, &val| Some(Box::new(ListNode { val, next })))
[INFO] [stdout]    |                                               ----             ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |                                               |
[INFO] [stdout]    |                                               these values have significant drop implementation and will observe changes in drop order under Edition 2024
[INFO] [stdout]    |
[INFO] [stdout]    = warning: this changes meaning in Rust 2024
[INFO] [stdout]    = note: for more information, see issue #123739 <https://github.com/rust-lang/rust/issues/123739>
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to 2 previous errors; 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `leetcode_utils` (lib test) due to 3 previous errors; 1 warning emitted
[INFO] running `Command { std: "docker" "inspect" "1b9256ee610193a787ad7eb151a3fa6fe32606dfe8eb851fb62a2846e258b940", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "1b9256ee610193a787ad7eb151a3fa6fe32606dfe8eb851fb62a2846e258b940", kill_on_drop: false }`
[INFO] [stdout] 1b9256ee610193a787ad7eb151a3fa6fe32606dfe8eb851fb62a2846e258b940