[INFO] cloning repository https://github.com/khssnv/leetcode-515-rs [INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/khssnv/leetcode-515-rs" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fkhssnv%2Fleetcode-515-rs", kill_on_drop: false }` [INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fkhssnv%2Fleetcode-515-rs'... [INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }` [INFO] [stdout] d616605b2ded617b65f990b69d37e7194c6409a1 [INFO] checking khssnv/leetcode-515-rs against master#a5db378dc14a40dd1580c27fb8362156446382c3 for pr-136490 [INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fkhssnv%2Fleetcode-515-rs" "/workspace/builds/worker-6-tc1/source", kill_on_drop: false }` [INFO] [stderr] Cloning into '/workspace/builds/worker-6-tc1/source'... [INFO] [stderr] done. [INFO] validating manifest of git repo https://github.com/khssnv/leetcode-515-rs on toolchain a5db378dc14a40dd1580c27fb8362156446382c3 [INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+a5db378dc14a40dd1580c27fb8362156446382c3" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }` [INFO] started tweaking git repo https://github.com/khssnv/leetcode-515-rs [INFO] finished tweaking git repo https://github.com/khssnv/leetcode-515-rs [INFO] tweaked toml for git repo https://github.com/khssnv/leetcode-515-rs written to /workspace/builds/worker-6-tc1/source/Cargo.toml [INFO] crate git repo https://github.com/khssnv/leetcode-515-rs 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" "+a5db378dc14a40dd1580c27fb8362156446382c3" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }` [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-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:c80049f3b88b82089a44e0f06d0d6029d44b96b7257e55a1cd63dbc9f4c33334" "/opt/rustwide/cargo-home/bin/cargo" "+a5db378dc14a40dd1580c27fb8362156446382c3" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }` [INFO] [stdout] cb3301fd6ef5ed5968b55b8fa07aab0293179385e2cdd677023e69cd8043d22d [INFO] running `Command { std: "docker" "start" "-a" "cb3301fd6ef5ed5968b55b8fa07aab0293179385e2cdd677023e69cd8043d22d", kill_on_drop: false }` [INFO] running `Command { std: "docker" "inspect" "cb3301fd6ef5ed5968b55b8fa07aab0293179385e2cdd677023e69cd8043d22d", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "cb3301fd6ef5ed5968b55b8fa07aab0293179385e2cdd677023e69cd8043d22d", kill_on_drop: false }` [INFO] [stdout] cb3301fd6ef5ed5968b55b8fa07aab0293179385e2cdd677023e69cd8043d22d [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-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:c80049f3b88b82089a44e0f06d0d6029d44b96b7257e55a1cd63dbc9f4c33334" "/opt/rustwide/cargo-home/bin/cargo" "+a5db378dc14a40dd1580c27fb8362156446382c3" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }` [INFO] [stdout] 9c77044f7fdaa1f40eba1bbd6856afd442bbc8e748bdff2e1a7a3e2f24da6808 [INFO] running `Command { std: "docker" "start" "-a" "9c77044f7fdaa1f40eba1bbd6856afd442bbc8e748bdff2e1a7a3e2f24da6808", kill_on_drop: false }` [INFO] [stderr] Checking leetcode-515-rs v0.1.0 (/opt/rustwide/workdir) [INFO] [stdout] warning: unused variable: `root` [INFO] [stdout] --> src/lib.rs:7:27 [INFO] [stdout] | [INFO] [stdout] 7 | pub fn largest_values(root: Option>>) -> Vec { [INFO] [stdout] | ^^^^ help: if this is intentional, prefix it with an underscore: `_root` [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_variables)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `root` [INFO] [stdout] --> src/lib.rs:7:27 [INFO] [stdout] | [INFO] [stdout] 7 | pub fn largest_values(root: Option>>) -> Vec { [INFO] [stdout] | ^^^^ help: if this is intentional, prefix it with an underscore: `_root` [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_variables)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: struct `Solution` is never constructed [INFO] [stdout] --> src/lib.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 `largest_values` is never used [INFO] [stdout] --> src/lib.rs:7:12 [INFO] [stdout] | [INFO] [stdout] 6 | impl Solution { [INFO] [stdout] | ------------- associated function in this implementation [INFO] [stdout] 7 | pub fn largest_values(root: Option>>) -> Vec { [INFO] [stdout] | ^^^^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] Finished `dev` profile [unoptimized + debuginfo] target(s) in 0.17s [INFO] running `Command { std: "docker" "inspect" "9c77044f7fdaa1f40eba1bbd6856afd442bbc8e748bdff2e1a7a3e2f24da6808", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "9c77044f7fdaa1f40eba1bbd6856afd442bbc8e748bdff2e1a7a3e2f24da6808", kill_on_drop: false }` [INFO] [stdout] 9c77044f7fdaa1f40eba1bbd6856afd442bbc8e748bdff2e1a7a3e2f24da6808