[INFO] cloning repository https://github.com/af8a2a/leetcode_rust [INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/af8a2a/leetcode_rust" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Faf8a2a%2Fleetcode_rust", kill_on_drop: false }` [INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Faf8a2a%2Fleetcode_rust'... [INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }` [INFO] [stdout] b33c3f529d8d79936a51ff0a2db4cbca3749f170 [INFO] checking af8a2a/leetcode_rust/b33c3f529d8d79936a51ff0a2db4cbca3749f170 against try#4d98531622e1718ae0bc3c7a1ab9cd8938428452+rustflags=-Dtail_expr_drop_order for pr-129604 [INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Faf8a2a%2Fleetcode_rust" "/workspace/builds/worker-0-tc2/source", kill_on_drop: false }` [INFO] [stderr] Cloning into '/workspace/builds/worker-0-tc2/source'... [INFO] [stderr] done. [INFO] validating manifest of git repo https://github.com/af8a2a/leetcode_rust 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 git repo https://github.com/af8a2a/leetcode_rust [INFO] finished tweaking git repo https://github.com/af8a2a/leetcode_rust [INFO] tweaked toml for git repo https://github.com/af8a2a/leetcode_rust written to /workspace/builds/worker-0-tc2/source/Cargo.toml [INFO] crate git repo https://github.com/af8a2a/leetcode_rust 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-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] 7b45a9e0b17e52b849eb80979556a8f98c3c7d130ab968cf95787de0df8157f9 [INFO] running `Command { std: "docker" "start" "-a" "7b45a9e0b17e52b849eb80979556a8f98c3c7d130ab968cf95787de0df8157f9", kill_on_drop: false }` [INFO] running `Command { std: "docker" "inspect" "7b45a9e0b17e52b849eb80979556a8f98c3c7d130ab968cf95787de0df8157f9", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "7b45a9e0b17e52b849eb80979556a8f98c3c7d130ab968cf95787de0df8157f9", kill_on_drop: false }` [INFO] [stdout] 7b45a9e0b17e52b849eb80979556a8f98c3c7d130ab968cf95787de0df8157f9 [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] c0e69b8e9696389a5de500d3f66a75bcc30868e9457890ea24f6710286162f9b [INFO] running `Command { std: "docker" "start" "-a" "c0e69b8e9696389a5de500d3f66a75bcc30868e9457890ea24f6710286162f9b", kill_on_drop: false }` [INFO] [stderr] Checking leetcode_rust v0.1.0 (/opt/rustwide/workdir) [INFO] [stdout] warning: unused import: `core::net` [INFO] [stdout] --> src/remove_nth_from_end.rs:1:5 [INFO] [stdout] | [INFO] [stdout] 1 | use core::net; [INFO] [stdout] | ^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_imports)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused import: `core::net` [INFO] [stdout] --> src/remove_nth_from_end.rs:1:5 [INFO] [stdout] | [INFO] [stdout] 1 | use core::net; [INFO] [stdout] | ^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_imports)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: variable does not need to be mutable [INFO] [stdout] --> src/remove_nth_from_end.rs:16:32 [INFO] [stdout] | [INFO] [stdout] 16 | pub fn remove_nth_from_end(mut head: Option>, n: i32) -> Option> { [INFO] [stdout] | ----^^^^ [INFO] [stdout] | | [INFO] [stdout] | help: remove this `mut` [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_mut)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: associated function `from_vec` is never used [INFO] [stdout] --> src/lib.rs:50:6 [INFO] [stdout] | [INFO] [stdout] 41 | impl ListNode { [INFO] [stdout] | ------------- associated function in this implementation [INFO] [stdout] ... [INFO] [stdout] 50 | fn from_vec(nums: Vec) -> Option> { [INFO] [stdout] | ^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(dead_code)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: function `two_sum` is never used [INFO] [stdout] --> src/two_sum.rs:3:8 [INFO] [stdout] | [INFO] [stdout] 3 | pub fn two_sum(nums: Vec, target: i32) -> Vec { [INFO] [stdout] | ^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: function `my_pow` is never used [INFO] [stdout] --> src/pow.rs:1:8 [INFO] [stdout] | [INFO] [stdout] 1 | pub fn my_pow(x: f64, n: i32) -> f64 { [INFO] [stdout] | ^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: associated function `climb_stairs_rescursive` is never used [INFO] [stdout] --> src/climb_stairs.rs:14:8 [INFO] [stdout] | [INFO] [stdout] 3 | impl Solution { [INFO] [stdout] | ------------- associated function in this implementation [INFO] [stdout] ... [INFO] [stdout] 14 | fn climb_stairs_rescursive(n: i32) -> i32 { [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^^^ [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/merge_two_lists.rs:8:15 [INFO] [stdout] | [INFO] [stdout] 5 | list1: Option>, [INFO] [stdout] | ---------------------------- these values have significant drop implementation and will observe changes in drop order under Edition 2024 [INFO] [stdout] 6 | list2: Option>, [INFO] [stdout] | ---------------------------- these values have significant drop implementation and will observe changes in drop order under Edition 2024 [INFO] [stdout] 7 | ) -> Option> { [INFO] [stdout] 8 | match (list1, list2) { [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: aborting due to 1 previous error; 6 warnings emitted [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] error: could not compile `leetcode_rust` (lib) due to 2 previous errors; 6 warnings emitted [INFO] [stderr] warning: build failed, waiting for other jobs to finish... [INFO] [stdout] warning: variable does not need to be mutable [INFO] [stdout] --> src/remove_nth_from_end.rs:16:32 [INFO] [stdout] | [INFO] [stdout] 16 | pub fn remove_nth_from_end(mut head: Option>, n: i32) -> Option> { [INFO] [stdout] | ----^^^^ [INFO] [stdout] | | [INFO] [stdout] | help: remove this `mut` [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_mut)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: associated function `climb_stairs_rescursive` is never used [INFO] [stdout] --> src/climb_stairs.rs:14:8 [INFO] [stdout] | [INFO] [stdout] 3 | impl Solution { [INFO] [stdout] | ------------- associated function in this implementation [INFO] [stdout] ... [INFO] [stdout] 14 | fn climb_stairs_rescursive(n: i32) -> i32 { [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/merge_two_lists.rs:8:15 [INFO] [stdout] | [INFO] [stdout] 5 | list1: Option>, [INFO] [stdout] | ---------------------------- these values have significant drop implementation and will observe changes in drop order under Edition 2024 [INFO] [stdout] 6 | list2: Option>, [INFO] [stdout] | ---------------------------- these values have significant drop implementation and will observe changes in drop order under Edition 2024 [INFO] [stdout] 7 | ) -> Option> { [INFO] [stdout] 8 | match (list1, list2) { [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: aborting due to 1 previous error; 3 warnings emitted [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] error: could not compile `leetcode_rust` (lib test) due to 2 previous errors; 3 warnings emitted [INFO] running `Command { std: "docker" "inspect" "c0e69b8e9696389a5de500d3f66a75bcc30868e9457890ea24f6710286162f9b", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "c0e69b8e9696389a5de500d3f66a75bcc30868e9457890ea24f6710286162f9b", kill_on_drop: false }` [INFO] [stdout] c0e69b8e9696389a5de500d3f66a75bcc30868e9457890ea24f6710286162f9b