[INFO] cloning repository https://github.com/Trojanking123/leetcode [INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/Trojanking123/leetcode" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FTrojanking123%2Fleetcode", kill_on_drop: false }` [INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FTrojanking123%2Fleetcode'... [INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }` [INFO] [stdout] ef283feb15d6556243b00b4e8abbb3903efe61b5 [INFO] checking Trojanking123/leetcode against master#1f12b9b0fdbe735968ac002792a720f0ba4faca6 for crater-rollup-uwu [INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FTrojanking123%2Fleetcode" "/workspace/builds/worker-2-tc1/source", kill_on_drop: false }` [INFO] [stderr] Cloning into '/workspace/builds/worker-2-tc1/source'... [INFO] [stderr] done. [INFO] validating manifest of git repo https://github.com/Trojanking123/leetcode on toolchain 1f12b9b0fdbe735968ac002792a720f0ba4faca6 [INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+1f12b9b0fdbe735968ac002792a720f0ba4faca6" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }` [INFO] started tweaking git repo https://github.com/Trojanking123/leetcode [INFO] finished tweaking git repo https://github.com/Trojanking123/leetcode [INFO] tweaked toml for git repo https://github.com/Trojanking123/leetcode written to /workspace/builds/worker-2-tc1/source/Cargo.toml [INFO] crate git repo https://github.com/Trojanking123/leetcode 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" "+1f12b9b0fdbe735968ac002792a720f0ba4faca6" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }` [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc1/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" "+1f12b9b0fdbe735968ac002792a720f0ba4faca6" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }` [INFO] [stdout] 1c19b837d0787afb9dde615368616a6557386eea99b36622c6b75348beca62a2 [INFO] running `Command { std: "docker" "start" "-a" "1c19b837d0787afb9dde615368616a6557386eea99b36622c6b75348beca62a2", kill_on_drop: false }` [INFO] running `Command { std: "docker" "inspect" "1c19b837d0787afb9dde615368616a6557386eea99b36622c6b75348beca62a2", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "1c19b837d0787afb9dde615368616a6557386eea99b36622c6b75348beca62a2", kill_on_drop: false }` [INFO] [stdout] 1c19b837d0787afb9dde615368616a6557386eea99b36622c6b75348beca62a2 [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc1/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" "-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" "+1f12b9b0fdbe735968ac002792a720f0ba4faca6" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }` [INFO] [stdout] 6da5c3f54884901e21e255bd1f30cf7c6dbf4db038508150d730cbc66208903c [INFO] running `Command { std: "docker" "start" "-a" "6da5c3f54884901e21e255bd1f30cf7c6dbf4db038508150d730cbc66208903c", kill_on_drop: false }` [INFO] [stderr] Checking leetcode v0.1.0 (/opt/rustwide/workdir) [INFO] [stdout] warning: unused import: `PartialEq` [INFO] [stdout] --> src/p0023.rs:27:31 [INFO] [stdout] | [INFO] [stdout] 27 | use std::cmp::{Ord, Ordering, PartialEq}; [INFO] [stdout] | ^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_imports)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: struct `Solution` is never constructed [INFO] [stdout] --> src/p0023.rs:5:8 [INFO] [stdout] | [INFO] [stdout] 5 | struct Solution; [INFO] [stdout] | ^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(dead_code)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: associated functions `merge_two_lists`, `merge_k_lists1`, `merge_k_lists`, and `merge_k_lists3` are never used [INFO] [stdout] --> src/p0023.rs:46:12 [INFO] [stdout] | [INFO] [stdout] 45 | impl Solution { [INFO] [stdout] | ------------- associated functions in this implementation [INFO] [stdout] 46 | pub fn merge_two_lists( [INFO] [stdout] | ^^^^^^^^^^^^^^^ [INFO] [stdout] ... [INFO] [stdout] 73 | pub fn merge_k_lists1(lists: Vec>>) -> Option> { [INFO] [stdout] | ^^^^^^^^^^^^^^ [INFO] [stdout] ... [INFO] [stdout] 83 | pub fn merge_k_lists(lists: Vec>>) -> Option> { [INFO] [stdout] | ^^^^^^^^^^^^^ [INFO] [stdout] ... [INFO] [stdout] 103 | pub fn merge_k_lists3(lists: Vec>>) -> Option> { [INFO] [stdout] | ^^^^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: associated function `new` is never used [INFO] [stdout] --> src/list.rs:9:10 [INFO] [stdout] | [INFO] [stdout] 7 | impl ListNode { [INFO] [stdout] | ------------- associated function in this implementation [INFO] [stdout] 8 | #[inline] [INFO] [stdout] 9 | pub fn new(val: i32) -> Self { [INFO] [stdout] | ^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: 4 warnings emitted [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: struct `Solution` is never constructed [INFO] [stdout] --> src/p0086.rs:4:8 [INFO] [stdout] | [INFO] [stdout] 4 | struct Solution; [INFO] [stdout] | ^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(dead_code)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: associated function `partition` is never used [INFO] [stdout] --> src/p0086.rs:8:12 [INFO] [stdout] | [INFO] [stdout] 7 | impl Solution { [INFO] [stdout] | ------------- associated function in this implementation [INFO] [stdout] 8 | pub fn partition(head: Option>, x: i32) -> Option> { [INFO] [stdout] | ^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: associated function `new` is never used [INFO] [stdout] --> src/list.rs:9:10 [INFO] [stdout] | [INFO] [stdout] 7 | impl ListNode { [INFO] [stdout] | ------------- associated function in this implementation [INFO] [stdout] 8 | #[inline] [INFO] [stdout] 9 | pub fn new(val: i32) -> Self { [INFO] [stdout] | ^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: struct `Solution` is never constructed [INFO] [stdout] --> src/p0021.rs:4:8 [INFO] [stdout] | [INFO] [stdout] 4 | struct Solution; [INFO] [stdout] | ^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(dead_code)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: associated function `merge_two_lists` is never used [INFO] [stdout] --> src/p0021.rs:7:12 [INFO] [stdout] | [INFO] [stdout] 6 | impl Solution { [INFO] [stdout] | ------------- associated function in this implementation [INFO] [stdout] 7 | pub fn merge_two_lists(list1: Option>, list2: Option>) -> Option> { [INFO] [stdout] | ^^^^^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: associated function `new` is never used [INFO] [stdout] --> src/list.rs:9:10 [INFO] [stdout] | [INFO] [stdout] 7 | impl ListNode { [INFO] [stdout] | ------------- associated function in this implementation [INFO] [stdout] 8 | #[inline] [INFO] [stdout] 9 | pub fn new(val: i32) -> Self { [INFO] [stdout] | ^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: 3 warnings emitted [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused import: `PartialEq` [INFO] [stdout] --> src/p0023.rs:27:31 [INFO] [stdout] | [INFO] [stdout] 27 | use std::cmp::{Ord, Ordering, PartialEq}; [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/p0019.rs:15:13 [INFO] [stdout] | [INFO] [stdout] 15 | let mut n = n; [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: variable does not need to be mutable [INFO] [stdout] --> src/p0019.rs:15:13 [INFO] [stdout] | [INFO] [stdout] 15 | let mut n = n; [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: struct `Solution` is never constructed [INFO] [stdout] --> src/p0019.rs:4:8 [INFO] [stdout] | [INFO] [stdout] 4 | struct Solution; [INFO] [stdout] | ^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(dead_code)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: associated function `remove_nth_from_end` is never used [INFO] [stdout] --> src/p0019.rs:9:12 [INFO] [stdout] | [INFO] [stdout] 8 | impl Solution { [INFO] [stdout] | ------------- associated function in this implementation [INFO] [stdout] 9 | pub fn remove_nth_from_end(head: Option>, n: i32) -> Option> { [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: associated function `new` is never used [INFO] [stdout] --> src/list.rs:9:10 [INFO] [stdout] | [INFO] [stdout] 7 | impl ListNode { [INFO] [stdout] | ------------- associated function in this implementation [INFO] [stdout] 8 | #[inline] [INFO] [stdout] 9 | pub fn new(val: i32) -> Self { [INFO] [stdout] | ^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: struct `Solution` is never constructed [INFO] [stdout] --> src/p0019.rs:4:8 [INFO] [stdout] | [INFO] [stdout] 4 | struct Solution; [INFO] [stdout] | ^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(dead_code)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: associated function `remove_nth_from_end` is never used [INFO] [stdout] --> src/p0019.rs:9:12 [INFO] [stdout] | [INFO] [stdout] 8 | impl Solution { [INFO] [stdout] | ------------- associated function in this implementation [INFO] [stdout] 9 | pub fn remove_nth_from_end(head: Option>, n: i32) -> Option> { [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: associated function `new` is never used [INFO] [stdout] --> src/list.rs:9:10 [INFO] [stdout] | [INFO] [stdout] 7 | impl ListNode { [INFO] [stdout] | ------------- associated function in this implementation [INFO] [stdout] 8 | #[inline] [INFO] [stdout] 9 | pub fn new(val: i32) -> Self { [INFO] [stdout] | ^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: struct `Solution` is never constructed [INFO] [stdout] --> src/p0086.rs:4:8 [INFO] [stdout] | [INFO] [stdout] 4 | struct Solution; [INFO] [stdout] | ^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(dead_code)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: associated function `partition` is never used [INFO] [stdout] --> src/p0086.rs:8:12 [INFO] [stdout] | [INFO] [stdout] 7 | impl Solution { [INFO] [stdout] | ------------- associated function in this implementation [INFO] [stdout] 8 | pub fn partition(head: Option>, x: i32) -> Option> { [INFO] [stdout] | ^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: associated function `new` is never used [INFO] [stdout] --> src/list.rs:9:10 [INFO] [stdout] | [INFO] [stdout] 7 | impl ListNode { [INFO] [stdout] | ------------- associated function in this implementation [INFO] [stdout] 8 | #[inline] [INFO] [stdout] 9 | pub fn new(val: i32) -> Self { [INFO] [stdout] | ^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: 3 warnings emitted [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: 4 warnings emitted [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: 4 warnings emitted [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: 3 warnings emitted [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: struct `Solution` is never constructed [INFO] [stdout] --> src/p0023.rs:5:8 [INFO] [stdout] | [INFO] [stdout] 5 | struct Solution; [INFO] [stdout] | ^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(dead_code)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: associated functions `merge_two_lists`, `merge_k_lists1`, `merge_k_lists`, and `merge_k_lists3` are never used [INFO] [stdout] --> src/p0023.rs:46:12 [INFO] [stdout] | [INFO] [stdout] 45 | impl Solution { [INFO] [stdout] | ------------- associated functions in this implementation [INFO] [stdout] 46 | pub fn merge_two_lists( [INFO] [stdout] | ^^^^^^^^^^^^^^^ [INFO] [stdout] ... [INFO] [stdout] 73 | pub fn merge_k_lists1(lists: Vec>>) -> Option> { [INFO] [stdout] | ^^^^^^^^^^^^^^ [INFO] [stdout] ... [INFO] [stdout] 83 | pub fn merge_k_lists(lists: Vec>>) -> Option> { [INFO] [stdout] | ^^^^^^^^^^^^^ [INFO] [stdout] ... [INFO] [stdout] 103 | pub fn merge_k_lists3(lists: Vec>>) -> Option> { [INFO] [stdout] | ^^^^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: associated function `new` is never used [INFO] [stdout] --> src/list.rs:9:10 [INFO] [stdout] | [INFO] [stdout] 7 | impl ListNode { [INFO] [stdout] | ------------- associated function in this implementation [INFO] [stdout] 8 | #[inline] [INFO] [stdout] 9 | pub fn new(val: i32) -> Self { [INFO] [stdout] | ^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: 4 warnings emitted [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: struct `Solution` is never constructed [INFO] [stdout] --> src/p0021.rs:4:8 [INFO] [stdout] | [INFO] [stdout] 4 | struct Solution; [INFO] [stdout] | ^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(dead_code)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: associated function `merge_two_lists` is never used [INFO] [stdout] --> src/p0021.rs:7:12 [INFO] [stdout] | [INFO] [stdout] 6 | impl Solution { [INFO] [stdout] | ------------- associated function in this implementation [INFO] [stdout] 7 | pub fn merge_two_lists(list1: Option>, list2: Option>) -> Option> { [INFO] [stdout] | ^^^^^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: associated function `new` is never used [INFO] [stdout] --> src/list.rs:9:10 [INFO] [stdout] | [INFO] [stdout] 7 | impl ListNode { [INFO] [stdout] | ------------- associated function in this implementation [INFO] [stdout] 8 | #[inline] [INFO] [stdout] 9 | pub fn new(val: i32) -> Self { [INFO] [stdout] | ^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: 3 warnings emitted [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] Finished `dev` profile [unoptimized + debuginfo] target(s) in 0.33s [INFO] running `Command { std: "docker" "inspect" "6da5c3f54884901e21e255bd1f30cf7c6dbf4db038508150d730cbc66208903c", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "6da5c3f54884901e21e255bd1f30cf7c6dbf4db038508150d730cbc66208903c", kill_on_drop: false }` [INFO] [stdout] 6da5c3f54884901e21e255bd1f30cf7c6dbf4db038508150d730cbc66208903c [INFO] checking Trojanking123/leetcode against try#f9935d29d867449445ee008640ccca1bf1ae0889+rustflags=-Dtail_expr_drop_order for crater-rollup-uwu [INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FTrojanking123%2Fleetcode" "/workspace/builds/worker-2-tc2/source", kill_on_drop: false }` [INFO] [stderr] Cloning into '/workspace/builds/worker-2-tc2/source'... [INFO] [stderr] done. [INFO] validating manifest of git repo https://github.com/Trojanking123/leetcode on toolchain f9935d29d867449445ee008640ccca1bf1ae0889 [INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+f9935d29d867449445ee008640ccca1bf1ae0889" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }` [INFO] started tweaking git repo https://github.com/Trojanking123/leetcode [INFO] finished tweaking git repo https://github.com/Trojanking123/leetcode [INFO] tweaked toml for git repo https://github.com/Trojanking123/leetcode written to /workspace/builds/worker-2-tc2/source/Cargo.toml [INFO] crate git repo https://github.com/Trojanking123/leetcode 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" "+f9935d29d867449445ee008640ccca1bf1ae0889" "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" "+f9935d29d867449445ee008640ccca1bf1ae0889" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }` [INFO] [stdout] f442500f0de86d04a623d05193b7aff7e264469f870002740c498e401371e6e0 [INFO] running `Command { std: "docker" "start" "-a" "f442500f0de86d04a623d05193b7aff7e264469f870002740c498e401371e6e0", kill_on_drop: false }` [INFO] running `Command { std: "docker" "inspect" "f442500f0de86d04a623d05193b7aff7e264469f870002740c498e401371e6e0", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "f442500f0de86d04a623d05193b7aff7e264469f870002740c498e401371e6e0", kill_on_drop: false }` [INFO] [stdout] f442500f0de86d04a623d05193b7aff7e264469f870002740c498e401371e6e0 [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" "+f9935d29d867449445ee008640ccca1bf1ae0889" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }` [INFO] [stdout] 8ed0b616f6374cd8525f016ab51f70cb164690c1b7ef1fe2d957652a26bb15d2 [INFO] running `Command { std: "docker" "start" "-a" "8ed0b616f6374cd8525f016ab51f70cb164690c1b7ef1fe2d957652a26bb15d2", kill_on_drop: false }` [INFO] [stderr] Checking leetcode v0.1.0 (/opt/rustwide/workdir) [INFO] [stdout] warning: unused import: `PartialEq` [INFO] [stdout] --> src/p0023.rs:27:31 [INFO] [stdout] | [INFO] [stdout] 27 | use std::cmp::{Ord, Ordering, PartialEq}; [INFO] [stdout] | ^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_imports)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: struct `Solution` is never constructed [INFO] [stdout] --> src/p0023.rs:5:8 [INFO] [stdout] | [INFO] [stdout] 5 | struct Solution; [INFO] [stdout] | ^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(dead_code)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: associated functions `merge_two_lists`, `merge_k_lists1`, `merge_k_lists`, and `merge_k_lists3` are never used [INFO] [stdout] --> src/p0023.rs:46:12 [INFO] [stdout] | [INFO] [stdout] 45 | impl Solution { [INFO] [stdout] | ------------- associated functions in this implementation [INFO] [stdout] 46 | pub fn merge_two_lists( [INFO] [stdout] | ^^^^^^^^^^^^^^^ [INFO] [stdout] ... [INFO] [stdout] 73 | pub fn merge_k_lists1(lists: Vec>>) -> Option> { [INFO] [stdout] | ^^^^^^^^^^^^^^ [INFO] [stdout] ... [INFO] [stdout] 83 | pub fn merge_k_lists(lists: Vec>>) -> Option> { [INFO] [stdout] | ^^^^^^^^^^^^^ [INFO] [stdout] ... [INFO] [stdout] 103 | pub fn merge_k_lists3(lists: Vec>>) -> Option> { [INFO] [stdout] | ^^^^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: variable does not need to be mutable [INFO] [stdout] --> src/p0019.rs:15:13 [INFO] [stdout] | [INFO] [stdout] 15 | let mut n = n; [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 `new` is never used [INFO] [stdout] --> src/list.rs:9:10 [INFO] [stdout] | [INFO] [stdout] 7 | impl ListNode { [INFO] [stdout] | ------------- associated function in this implementation [INFO] [stdout] 8 | #[inline] [INFO] [stdout] 9 | pub fn new(val: i32) -> Self { [INFO] [stdout] | ^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: struct `Solution` is never constructed [INFO] [stdout] --> src/p0019.rs:4:8 [INFO] [stdout] | [INFO] [stdout] 4 | struct Solution; [INFO] [stdout] | ^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(dead_code)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: associated function `remove_nth_from_end` is never used [INFO] [stdout] --> src/p0019.rs:9:12 [INFO] [stdout] | [INFO] [stdout] 8 | impl Solution { [INFO] [stdout] | ------------- associated function in this implementation [INFO] [stdout] 9 | pub fn remove_nth_from_end(head: Option>, n: i32) -> Option> { [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: associated function `new` is never used [INFO] [stdout] --> src/list.rs:9:10 [INFO] [stdout] | [INFO] [stdout] 7 | impl ListNode { [INFO] [stdout] | ------------- associated function in this implementation [INFO] [stdout] 8 | #[inline] [INFO] [stdout] 9 | pub fn new(val: i32) -> Self { [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/p0019.rs:33:9 [INFO] [stdout] | [INFO] [stdout] 9 | pub fn remove_nth_from_end(head: Option>, n: i32) -> Option> { [INFO] [stdout] | --------------------------- these values have significant drop implementation and will observe changes in drop order under Edition 2024 [INFO] [stdout] 10 | [INFO] [stdout] 11 | let mut dummy = Some( Box::new( ListNode{val: -1, next: head} ) ); [INFO] [stdout] | ----- these values have significant drop implementation and will observe changes in drop order under Edition 2024 [INFO] [stdout] ... [INFO] [stdout] 33 | dummy.unwrap().next [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; 4 warnings emitted [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: struct `Solution` is never constructed [INFO] [stdout] --> src/p0086.rs:4:8 [INFO] [stdout] | [INFO] [stdout] 4 | struct Solution; [INFO] [stdout] | ^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(dead_code)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: associated function `partition` is never used [INFO] [stdout] --> src/p0086.rs:8:12 [INFO] [stdout] | [INFO] [stdout] 7 | impl Solution { [INFO] [stdout] | ------------- associated function in this implementation [INFO] [stdout] 8 | pub fn partition(head: Option>, x: i32) -> Option> { [INFO] [stdout] | ^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: associated function `new` is never used [INFO] [stdout] --> src/list.rs:9:10 [INFO] [stdout] | [INFO] [stdout] 7 | impl ListNode { [INFO] [stdout] | ------------- associated function in this implementation [INFO] [stdout] 8 | #[inline] [INFO] [stdout] 9 | pub fn new(val: i32) -> Self { [INFO] [stdout] | ^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: struct `Solution` is never constructed [INFO] [stdout] --> src/p0021.rs:4:8 [INFO] [stdout] | [INFO] [stdout] 4 | struct Solution; [INFO] [stdout] | ^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(dead_code)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: associated function `merge_two_lists` is never used [INFO] [stdout] --> src/p0021.rs:7:12 [INFO] [stdout] | [INFO] [stdout] 6 | impl Solution { [INFO] [stdout] | ------------- associated function in this implementation [INFO] [stdout] 7 | pub fn merge_two_lists(list1: Option>, list2: Option>) -> Option> { [INFO] [stdout] | ^^^^^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: associated function `new` is never used [INFO] [stdout] --> src/list.rs:9:10 [INFO] [stdout] | [INFO] [stdout] 7 | impl ListNode { [INFO] [stdout] | ------------- associated function in this implementation [INFO] [stdout] 8 | #[inline] [INFO] [stdout] 9 | pub fn new(val: i32) -> Self { [INFO] [stdout] | ^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: 4 warnings emitted [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] error: could not compile `leetcode` (bin "p0019") due to 2 previous errors; 4 warnings emitted [INFO] [stderr] warning: build failed, waiting for other jobs to finish... [INFO] [stdout] warning: 3 warnings emitted [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: 3 warnings emitted [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: variable does not need to be mutable [INFO] [stdout] --> src/p0019.rs:15:13 [INFO] [stdout] | [INFO] [stdout] 15 | let mut n = n; [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: struct `Solution` is never constructed [INFO] [stdout] --> src/p0019.rs:4:8 [INFO] [stdout] | [INFO] [stdout] 4 | struct Solution; [INFO] [stdout] | ^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(dead_code)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: struct `Solution` is never constructed [INFO] [stdout] --> src/p0086.rs:4:8 [INFO] [stdout] | [INFO] [stdout] 4 | struct Solution; [INFO] [stdout] | ^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(dead_code)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: associated function `remove_nth_from_end` is never used [INFO] [stdout] --> src/p0019.rs:9:12 [INFO] [stdout] | [INFO] [stdout] 8 | impl Solution { [INFO] [stdout] | ------------- associated function in this implementation [INFO] [stdout] 9 | pub fn remove_nth_from_end(head: Option>, n: i32) -> Option> { [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: associated function `new` is never used [INFO] [stdout] --> src/list.rs:9:10 [INFO] [stdout] | [INFO] [stdout] 7 | impl ListNode { [INFO] [stdout] | ------------- associated function in this implementation [INFO] [stdout] 8 | #[inline] [INFO] [stdout] 9 | pub fn new(val: i32) -> Self { [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/p0019.rs:33:9 [INFO] [stdout] | [INFO] [stdout] 9 | pub fn remove_nth_from_end(head: Option>, n: i32) -> Option> { [INFO] [stdout] | --------------------------- these values have significant drop implementation and will observe changes in drop order under Edition 2024 [INFO] [stdout] 10 | [INFO] [stdout] 11 | let mut dummy = Some( Box::new( ListNode{val: -1, next: head} ) ); [INFO] [stdout] | ----- these values have significant drop implementation and will observe changes in drop order under Edition 2024 [INFO] [stdout] ... [INFO] [stdout] 33 | dummy.unwrap().next [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; 4 warnings emitted [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: associated function `partition` is never used [INFO] [stdout] --> src/p0086.rs:8:12 [INFO] [stdout] | [INFO] [stdout] 7 | impl Solution { [INFO] [stdout] | ------------- associated function in this implementation [INFO] [stdout] 8 | pub fn partition(head: Option>, x: i32) -> Option> { [INFO] [stdout] | ^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: associated function `new` is never used [INFO] [stdout] --> src/list.rs:9:10 [INFO] [stdout] | [INFO] [stdout] 7 | impl ListNode { [INFO] [stdout] | ------------- associated function in this implementation [INFO] [stdout] 8 | #[inline] [INFO] [stdout] 9 | pub fn new(val: i32) -> Self { [INFO] [stdout] | ^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] error: could not compile `leetcode` (bin "p0019" test) due to 2 previous errors; 4 warnings emitted [INFO] [stdout] warning: 3 warnings emitted [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: struct `Solution` is never constructed [INFO] [stdout] --> src/p0021.rs:4:8 [INFO] [stdout] | [INFO] [stdout] 4 | struct Solution; [INFO] [stdout] | ^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(dead_code)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: associated function `merge_two_lists` is never used [INFO] [stdout] --> src/p0021.rs:7:12 [INFO] [stdout] | [INFO] [stdout] 6 | impl Solution { [INFO] [stdout] | ------------- associated function in this implementation [INFO] [stdout] 7 | pub fn merge_two_lists(list1: Option>, list2: Option>) -> Option> { [INFO] [stdout] | ^^^^^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: associated function `new` is never used [INFO] [stdout] --> src/list.rs:9:10 [INFO] [stdout] | [INFO] [stdout] 7 | impl ListNode { [INFO] [stdout] | ------------- associated function in this implementation [INFO] [stdout] 8 | #[inline] [INFO] [stdout] 9 | pub fn new(val: i32) -> Self { [INFO] [stdout] | ^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: 3 warnings emitted [INFO] [stdout] [INFO] [stdout] [INFO] running `Command { std: "docker" "inspect" "8ed0b616f6374cd8525f016ab51f70cb164690c1b7ef1fe2d957652a26bb15d2", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "8ed0b616f6374cd8525f016ab51f70cb164690c1b7ef1fe2d957652a26bb15d2", kill_on_drop: false }` [INFO] [stdout] 8ed0b616f6374cd8525f016ab51f70cb164690c1b7ef1fe2d957652a26bb15d2