[INFO] cloning repository https://github.com/DrackRamoray/leetcode-solutions-rust [INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/DrackRamoray/leetcode-solutions-rust" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FDrackRamoray%2Fleetcode-solutions-rust", kill_on_drop: false }` [INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FDrackRamoray%2Fleetcode-solutions-rust'... [INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }` [INFO] [stdout] fc39b352ece9544f81c20b1a8712864b920954ef [INFO] checking DrackRamoray/leetcode-solutions-rust against try#93086cfebfccb79083c59d0d3b2052944bba643c for pr-146440-1 [INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FDrackRamoray%2Fleetcode-solutions-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] started tweaking git repo https://github.com/DrackRamoray/leetcode-solutions-rust [INFO] finished tweaking git repo https://github.com/DrackRamoray/leetcode-solutions-rust [INFO] tweaked toml for git repo https://github.com/DrackRamoray/leetcode-solutions-rust written to /workspace/builds/worker-0-tc2/source/Cargo.toml [INFO] validating manifest of git repo https://github.com/DrackRamoray/leetcode-solutions-rust on toolchain 93086cfebfccb79083c59d0d3b2052944bba643c [INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+93086cfebfccb79083c59d0d3b2052944bba643c" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }` [INFO] crate git repo https://github.com/DrackRamoray/leetcode-solutions-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" "+93086cfebfccb79083c59d0d3b2052944bba643c" "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:d429b63d4308055ea97f60fb1d3dfca48854a00942f1bd2ad806beaf015945ec" "/opt/rustwide/cargo-home/bin/cargo" "+93086cfebfccb79083c59d0d3b2052944bba643c" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }` [INFO] [stdout] 69af0003a66fc61bf75881b94536f6de31ce0667c69e16ff2131b1e55f4fc95b [INFO] running `Command { std: "docker" "start" "-a" "69af0003a66fc61bf75881b94536f6de31ce0667c69e16ff2131b1e55f4fc95b", kill_on_drop: false }` [INFO] running `Command { std: "docker" "inspect" "69af0003a66fc61bf75881b94536f6de31ce0667c69e16ff2131b1e55f4fc95b", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "69af0003a66fc61bf75881b94536f6de31ce0667c69e16ff2131b1e55f4fc95b", kill_on_drop: false }` [INFO] [stdout] 69af0003a66fc61bf75881b94536f6de31ce0667c69e16ff2131b1e55f4fc95b [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" "-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:d429b63d4308055ea97f60fb1d3dfca48854a00942f1bd2ad806beaf015945ec" "/opt/rustwide/cargo-home/bin/cargo" "+93086cfebfccb79083c59d0d3b2052944bba643c" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }` [INFO] [stdout] 46b308be7d49316ce7f069645d109950f09e9d65a8a77c66d8a720964c0f7897 [INFO] running `Command { std: "docker" "start" "-a" "46b308be7d49316ce7f069645d109950f09e9d65a8a77c66d8a720964c0f7897", kill_on_drop: false }` [INFO] [stderr] Compiling libc v0.2.137 [INFO] [stderr] Checking assist v0.1.0 (/opt/rustwide/workdir/assist) [INFO] [stderr] Checking easy v0.1.0 (/opt/rustwide/workdir/easy) [INFO] [stdout] warning: variable does not need to be mutable [INFO] [stdout] --> easy/src/remove-duplicates-from-sorted-list/mod.rs:9:24 [INFO] [stdout] | [INFO] [stdout] 9 | while let Some(mut node) = cur.take() { [INFO] [stdout] | ----^^^^ [INFO] [stdout] | | [INFO] [stdout] | help: remove this `mut` [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_mut)]` (part of `#[warn(unused)]`) on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] error: struct `TwoSum` is never constructed [INFO] [stdout] --> easy/src/two-sum-iii-data-structure-design/mod.rs:3:12 [INFO] [stdout] | [INFO] [stdout] 3 | pub struct TwoSum { [INFO] [stdout] | ^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: this `pub` struct has private fields, no public constructor, and is not otherwise reachable through the external API, so consider providing a public constructor or removing it [INFO] [stdout] = note: `#[deny(unused_unconstructable_pub_structs)]` (part of `#[deny(unused)]`) on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] error: could not compile `easy` (lib) due to 5 previous errors; 17 warnings emitted [INFO] [stdout] warning: field `cache` is never read [INFO] [stdout] --> easy/src/two-sum-iii-data-structure-design/mod.rs:4:5 [INFO] [stdout] | [INFO] [stdout] 3 | pub struct TwoSum { [INFO] [stdout] | ------ field in this struct [INFO] [stdout] 4 | cache: HashMap, [INFO] [stdout] | ^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] warning: build failed, waiting for other jobs to finish... [INFO] [stdout] warning: associated items `new`, `add`, and `find` are never used [INFO] [stdout] --> easy/src/two-sum-iii-data-structure-design/mod.rs:9:8 [INFO] [stdout] | [INFO] [stdout] 7 | impl TwoSum { [INFO] [stdout] | ----------- associated items in this implementation [INFO] [stdout] 8 | [INFO] [stdout] 9 | fn new() -> Self { [INFO] [stdout] | ^^^ [INFO] [stdout] ... [INFO] [stdout] 15 | fn add(&mut self, number: i32) { [INFO] [stdout] | ^^^ [INFO] [stdout] ... [INFO] [stdout] 20 | fn find(&self, value: i32) -> bool { [INFO] [stdout] | ^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: field `queue` is never read [INFO] [stdout] --> easy/src/implement-stack-using-queues/mod.rs:5:5 [INFO] [stdout] | [INFO] [stdout] 4 | pub struct MyStack { [INFO] [stdout] | ------- field in this struct [INFO] [stdout] 5 | queue: VecDeque, [INFO] [stdout] | ^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: associated items `new`, `push`, `pop`, `top`, and `empty` are never used [INFO] [stdout] --> easy/src/implement-stack-using-queues/mod.rs:9:8 [INFO] [stdout] | [INFO] [stdout] 8 | impl MyStack { [INFO] [stdout] | ------------ associated items in this implementation [INFO] [stdout] 9 | fn new() -> Self { [INFO] [stdout] | ^^^ [INFO] [stdout] ... [INFO] [stdout] 15 | fn push(&mut self, x: i32) { [INFO] [stdout] | ^^^^ [INFO] [stdout] ... [INFO] [stdout] 25 | fn pop(&mut self) -> i32 { [INFO] [stdout] | ^^^ [INFO] [stdout] ... [INFO] [stdout] 29 | fn top(&self) -> i32 { [INFO] [stdout] | ^^^ [INFO] [stdout] ... [INFO] [stdout] 33 | fn empty(&self) -> bool { [INFO] [stdout] | ^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] error: struct `MyQueue` is never constructed [INFO] [stdout] --> easy/src/implement-queue-using-stacks/mod.rs:1:12 [INFO] [stdout] | [INFO] [stdout] 1 | pub struct MyQueue { [INFO] [stdout] | ^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: this `pub` struct has private fields, no public constructor, and is not otherwise reachable through the external API, so consider providing a public constructor or removing it [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: fields `s1` and `s2` are never read [INFO] [stdout] --> easy/src/implement-queue-using-stacks/mod.rs:2:5 [INFO] [stdout] | [INFO] [stdout] 1 | pub struct MyQueue { [INFO] [stdout] | ------- fields in this struct [INFO] [stdout] 2 | s1: Vec, [INFO] [stdout] | ^^ [INFO] [stdout] 3 | s2: Vec [INFO] [stdout] | ^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: associated items `new`, `push`, `pop`, `peek`, and `empty` are never used [INFO] [stdout] --> easy/src/implement-queue-using-stacks/mod.rs:7:8 [INFO] [stdout] | [INFO] [stdout] 6 | impl MyQueue { [INFO] [stdout] | ------------ associated items in this implementation [INFO] [stdout] 7 | fn new() -> Self { [INFO] [stdout] | ^^^ [INFO] [stdout] ... [INFO] [stdout] 14 | fn push(&mut self, x: i32) { [INFO] [stdout] | ^^^^ [INFO] [stdout] ... [INFO] [stdout] 18 | fn pop(&mut self) -> i32 { [INFO] [stdout] | ^^^ [INFO] [stdout] ... [INFO] [stdout] 34 | fn peek(&self) -> i32 { [INFO] [stdout] | ^^^^ [INFO] [stdout] ... [INFO] [stdout] 46 | fn empty(&self) -> bool { [INFO] [stdout] | ^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: struct `List` is never constructed [INFO] [stdout] --> easy/src/palindrome-linked-list/mod.rs:3:8 [INFO] [stdout] | [INFO] [stdout] 3 | struct List { [INFO] [stdout] | ^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: associated items `new`, `pop`, and `into_iter` are never used [INFO] [stdout] --> easy/src/palindrome-linked-list/mod.rs:8:8 [INFO] [stdout] | [INFO] [stdout] 7 | impl List { [INFO] [stdout] | --------- associated items in this implementation [INFO] [stdout] 8 | fn new(head: Option>) -> Self { [INFO] [stdout] | ^^^ [INFO] [stdout] ... [INFO] [stdout] 12 | fn pop(&mut self) -> Option { [INFO] [stdout] | ^^^ [INFO] [stdout] ... [INFO] [stdout] 21 | fn into_iter(self) -> IntoIter { [INFO] [stdout] | ^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: struct `IntoIter` is never constructed [INFO] [stdout] --> easy/src/palindrome-linked-list/mod.rs:26:8 [INFO] [stdout] | [INFO] [stdout] 26 | struct IntoIter { [INFO] [stdout] | ^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: associated function `is_palindrome` is never used [INFO] [stdout] --> easy/src/palindrome-linked-list/mod.rs:41:8 [INFO] [stdout] | [INFO] [stdout] 40 | impl Solution { [INFO] [stdout] | ------------- associated function in this implementation [INFO] [stdout] 41 | fn is_palindrome(head: Option>) -> bool { [INFO] [stdout] | ^^^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] error: struct `NumArray` is never constructed [INFO] [stdout] --> easy/src/range-sum-query-immutable/mod.rs:1:12 [INFO] [stdout] | [INFO] [stdout] 1 | pub struct NumArray { [INFO] [stdout] | ^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: this `pub` struct has private fields, no public constructor, and is not otherwise reachable through the external API, so consider providing a public constructor or removing it [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: field `s` is never read [INFO] [stdout] --> easy/src/range-sum-query-immutable/mod.rs:2:5 [INFO] [stdout] | [INFO] [stdout] 1 | pub struct NumArray { [INFO] [stdout] | -------- field in this struct [INFO] [stdout] 2 | s: Vec [INFO] [stdout] | ^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: associated items `new` and `sum_range` are never used [INFO] [stdout] --> easy/src/range-sum-query-immutable/mod.rs:7:8 [INFO] [stdout] | [INFO] [stdout] 5 | impl NumArray { [INFO] [stdout] | ------------- associated items in this implementation [INFO] [stdout] 6 | [INFO] [stdout] 7 | fn new(nums: Vec) -> Self { [INFO] [stdout] | ^^^ [INFO] [stdout] ... [INFO] [stdout] 18 | fn sum_range(&self, left: i32, right: i32) -> i32 { [INFO] [stdout] | ^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] error: struct `MovingAverage` is never constructed [INFO] [stdout] --> easy/src/moving-average-from-data-stream/mod.rs:3:12 [INFO] [stdout] | [INFO] [stdout] 3 | pub struct MovingAverage { [INFO] [stdout] | ^^^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: this `pub` struct has private fields, no public constructor, and is not otherwise reachable through the external API, so consider providing a public constructor or removing it [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: fields `size` and `data` are never read [INFO] [stdout] --> easy/src/moving-average-from-data-stream/mod.rs:4:5 [INFO] [stdout] | [INFO] [stdout] 3 | pub struct MovingAverage { [INFO] [stdout] | ------------- fields in this struct [INFO] [stdout] 4 | size: usize, [INFO] [stdout] | ^^^^ [INFO] [stdout] 5 | data: VecDeque, [INFO] [stdout] | ^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: associated items `new` and `next` are never used [INFO] [stdout] --> easy/src/moving-average-from-data-stream/mod.rs:10:8 [INFO] [stdout] | [INFO] [stdout] 8 | impl MovingAverage { [INFO] [stdout] | ------------------ associated items in this implementation [INFO] [stdout] 9 | [INFO] [stdout] 10 | fn new(size: i32) -> Self { [INFO] [stdout] | ^^^ [INFO] [stdout] ... [INFO] [stdout] 17 | fn next(&mut self, val: i32) -> f64 { [INFO] [stdout] | ^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] error: struct `Logger` is never constructed [INFO] [stdout] --> easy/src/logger-rate-limiter/mod.rs:3:12 [INFO] [stdout] | [INFO] [stdout] 3 | pub struct Logger { [INFO] [stdout] | ^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: this `pub` struct has private fields, no public constructor, and is not otherwise reachable through the external API, so consider providing a public constructor or removing it [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: field `logs` is never read [INFO] [stdout] --> easy/src/logger-rate-limiter/mod.rs:4:5 [INFO] [stdout] | [INFO] [stdout] 3 | pub struct Logger { [INFO] [stdout] | ------ field in this struct [INFO] [stdout] 4 | logs: HashMap, [INFO] [stdout] | ^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: associated items `new` and `should_print_message` are never used [INFO] [stdout] --> easy/src/logger-rate-limiter/mod.rs:9:8 [INFO] [stdout] | [INFO] [stdout] 7 | impl Logger { [INFO] [stdout] | ----------- associated items in this implementation [INFO] [stdout] 8 | [INFO] [stdout] 9 | fn new() -> Self { [INFO] [stdout] | ^^^ [INFO] [stdout] ... [INFO] [stdout] 15 | fn should_print_message(&mut self, timestamp: i32, message: String) -> bool { [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: variable does not need to be mutable [INFO] [stdout] --> easy/src/remove-duplicates-from-sorted-list/mod.rs:9:24 [INFO] [stdout] | [INFO] [stdout] 9 | while let Some(mut node) = cur.take() { [INFO] [stdout] | ----^^^^ [INFO] [stdout] | | [INFO] [stdout] | help: remove this `mut` [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_mut)]` (part of `#[warn(unused)]`) on by default [INFO] [stdout] [INFO] [stdout] [INFO] running `Command { std: "docker" "inspect" "46b308be7d49316ce7f069645d109950f09e9d65a8a77c66d8a720964c0f7897", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "46b308be7d49316ce7f069645d109950f09e9d65a8a77c66d8a720964c0f7897", kill_on_drop: false }` [INFO] [stdout] 46b308be7d49316ce7f069645d109950f09e9d65a8a77c66d8a720964c0f7897