[INFO] cloning repository https://github.com/QiBaobin/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/QiBaobin/leetcode-rust" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FQiBaobin%2Fleetcode-rust", kill_on_drop: false }` [INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FQiBaobin%2Fleetcode-rust'... [INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }` [INFO] [stdout] 4e31526edead0542ae06793b7851ad06d381a3b2 [INFO] checking QiBaobin/leetcode-rust against master#9fa580b1175018b0a276b0bc68f9827a106f7260 for pr-82565 [INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FQiBaobin%2Fleetcode-rust" "/workspace/builds/worker-8/source", kill_on_drop: false }` [INFO] [stderr] Cloning into '/workspace/builds/worker-8/source'... [INFO] [stderr] done. [INFO] validating manifest of git repo https://github.com/QiBaobin/leetcode-rust on toolchain 9fa580b1175018b0a276b0bc68f9827a106f7260 [INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+9fa580b1175018b0a276b0bc68f9827a106f7260" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }` [INFO] started tweaking git repo https://github.com/QiBaobin/leetcode-rust [INFO] finished tweaking git repo https://github.com/QiBaobin/leetcode-rust [INFO] tweaked toml for git repo https://github.com/QiBaobin/leetcode-rust written to /workspace/builds/worker-8/source/Cargo.toml [INFO] crate git repo https://github.com/QiBaobin/leetcode-rust already has a lockfile, it will not be regenerated [INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+9fa580b1175018b0a276b0bc68f9827a106f7260" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }` [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/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" "rustops/crates-build-env@sha256:f2f6bcd4b43ebee4e173f653a26493129bdb64017c85f916b780ca7fbdbaa79d" "/opt/rustwide/cargo-home/bin/cargo" "+9fa580b1175018b0a276b0bc68f9827a106f7260" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }` [INFO] [stdout] 74d69440c870d3dc41d767507c7c3ccd6d4c92bfc8f2c2d6a36412d80808f829 [INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap. [INFO] running `Command { std: "docker" "start" "-a" "74d69440c870d3dc41d767507c7c3ccd6d4c92bfc8f2c2d6a36412d80808f829", kill_on_drop: false }` [INFO] running `Command { std: "docker" "inspect" "74d69440c870d3dc41d767507c7c3ccd6d4c92bfc8f2c2d6a36412d80808f829", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "74d69440c870d3dc41d767507c7c3ccd6d4c92bfc8f2c2d6a36412d80808f829", kill_on_drop: false }` [INFO] [stdout] 74d69440c870d3dc41d767507c7c3ccd6d4c92bfc8f2c2d6a36412d80808f829 [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/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" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--user" "0:0" "--network" "none" "rustops/crates-build-env@sha256:f2f6bcd4b43ebee4e173f653a26493129bdb64017c85f916b780ca7fbdbaa79d" "/opt/rustwide/cargo-home/bin/cargo" "+9fa580b1175018b0a276b0bc68f9827a106f7260" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }` [INFO] [stdout] 051132ad294035d056b3d61662cc296b086977c04d584a991b1efd8f0729df47 [INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap. [INFO] running `Command { std: "docker" "start" "-a" "051132ad294035d056b3d61662cc296b086977c04d584a991b1efd8f0729df47", kill_on_drop: false }` [INFO] [stderr] Checking leetcode v0.1.0 (/opt/rustwide/workdir) [INFO] [stdout] warning: struct is never constructed: `Solution` [INFO] [stdout] --> src/solutions/letter_combinations.rs:3:8 [INFO] [stdout] | [INFO] [stdout] 3 | struct Solution; [INFO] [stdout] | ^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(dead_code)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: associated function is never used: `letter_combinations` [INFO] [stdout] --> src/solutions/letter_combinations.rs:5:12 [INFO] [stdout] | [INFO] [stdout] 5 | pub fn letter_combinations(digits: String) -> Vec { [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: struct is never constructed: `Solution` [INFO] [stdout] --> src/solutions/longest_common_prefix.rs:3:8 [INFO] [stdout] | [INFO] [stdout] 3 | struct Solution; [INFO] [stdout] | ^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: associated function is never used: `longest_common_prefix` [INFO] [stdout] --> src/solutions/longest_common_prefix.rs:5:12 [INFO] [stdout] | [INFO] [stdout] 5 | pub fn longest_common_prefix(strs: Vec) -> String { [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: associated function is never used: `new` [INFO] [stdout] --> src/solutions/merge_k_lists.rs:12:8 [INFO] [stdout] | [INFO] [stdout] 12 | fn new(val: i32) -> Self { [INFO] [stdout] | ^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: associated function is never used: `new` [INFO] [stdout] --> src/solutions/merge_two_sorted_list.rs:12:8 [INFO] [stdout] | [INFO] [stdout] 12 | fn new(val: i32) -> Self { [INFO] [stdout] | ^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: associated function is never used: `new` [INFO] [stdout] --> src/solutions/remove_nth_from_end.rs:11:8 [INFO] [stdout] | [INFO] [stdout] 11 | fn new(val: i32) -> Self { [INFO] [stdout] | ^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: struct is never constructed: `Solution` [INFO] [stdout] --> src/solutions/remove_nth_from_end.rs:15:8 [INFO] [stdout] | [INFO] [stdout] 15 | struct Solution; [INFO] [stdout] | ^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: associated function is never used: `remove_nth_from_end` [INFO] [stdout] --> src/solutions/remove_nth_from_end.rs:18:12 [INFO] [stdout] | [INFO] [stdout] 18 | pub fn remove_nth_from_end(head: Option>, n: i32) -> Option> { [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: associated function is never used: `new` [INFO] [stdout] --> src/solutions/reverse_k_group.rs:12:8 [INFO] [stdout] | [INFO] [stdout] 12 | fn new(val: i32) -> Self { [INFO] [stdout] | ^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: struct is never constructed: `Solution` [INFO] [stdout] --> src/solutions/three_sum.rs:3:8 [INFO] [stdout] | [INFO] [stdout] 3 | struct Solution; [INFO] [stdout] | ^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: associated function is never used: `three_sum` [INFO] [stdout] --> src/solutions/three_sum.rs:5:12 [INFO] [stdout] | [INFO] [stdout] 5 | pub fn three_sum(mut nums: Vec) -> Vec> { [INFO] [stdout] | ^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: associated function is never used: `advance` [INFO] [stdout] --> src/solutions/three_sum.rs:43:8 [INFO] [stdout] | [INFO] [stdout] 43 | fn advance(s: &[i32], i: &mut usize, end: usize, forward: bool) { [INFO] [stdout] | ^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: struct is never constructed: `Solution` [INFO] [stdout] --> src/solutions/three_sum_closest.rs:3:8 [INFO] [stdout] | [INFO] [stdout] 3 | struct Solution; [INFO] [stdout] | ^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: associated function is never used: `three_sum_closest` [INFO] [stdout] --> src/solutions/three_sum_closest.rs:5:12 [INFO] [stdout] | [INFO] [stdout] 5 | pub fn three_sum_closest(mut nums: Vec, target: i32) -> i32 { [INFO] [stdout] | ^^^^^^^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: function is never used: `add` [INFO] [stdout] --> src/solutions/three_sum_closest.rs:49:4 [INFO] [stdout] | [INFO] [stdout] 49 | fn add(a: i32, b: i32) -> i32 { [INFO] [stdout] | ^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: function is never used: `sub` [INFO] [stdout] --> src/solutions/three_sum_closest.rs:53:4 [INFO] [stdout] | [INFO] [stdout] 53 | fn sub(a: i32, b: i32) -> i32 { [INFO] [stdout] | ^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: 17 warnings emitted [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] Finished dev [unoptimized + debuginfo] target(s) in 0.60s [INFO] running `Command { std: "docker" "inspect" "051132ad294035d056b3d61662cc296b086977c04d584a991b1efd8f0729df47", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "051132ad294035d056b3d61662cc296b086977c04d584a991b1efd8f0729df47", kill_on_drop: false }` [INFO] [stdout] 051132ad294035d056b3d61662cc296b086977c04d584a991b1efd8f0729df47