[INFO] cloning repository https://github.com/guoraymon/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/guoraymon/leetcode-rust" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fguoraymon%2Fleetcode-rust", kill_on_drop: false }` [INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fguoraymon%2Fleetcode-rust'... [INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }` [INFO] [stdout] 3ce296a6d4c5906d82d40cd8e85af8dc5e644df2 [INFO] checking guoraymon/leetcode-rust against try#4a04890980766cc79878135f5ade8c0c4321e943 for pr-65819 [INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fguoraymon%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/guoraymon/leetcode-rust on toolchain 4a04890980766cc79878135f5ade8c0c4321e943 [INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+4a04890980766cc79878135f5ade8c0c4321e943" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }` [INFO] started tweaking git repo https://github.com/guoraymon/leetcode-rust [INFO] finished tweaking git repo https://github.com/guoraymon/leetcode-rust [INFO] tweaked toml for git repo https://github.com/guoraymon/leetcode-rust written to /workspace/builds/worker-8/source/Cargo.toml [INFO] crate git repo https://github.com/guoraymon/leetcode-rust already has a lockfile, it will not be regenerated [INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+4a04890980766cc79878135f5ade8c0c4321e943" "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:c46a2d1a26fb48b37929c74ca49dd9409f2375a0a3bdb8fe07617f3ffccaa889" "/opt/rustwide/cargo-home/bin/cargo" "+4a04890980766cc79878135f5ade8c0c4321e943" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }` [INFO] [stdout] 7e544ac18470eaad3ab162dd5f2b94d92ffcbb1b15b349adc207189ca9e95da9 [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" "7e544ac18470eaad3ab162dd5f2b94d92ffcbb1b15b349adc207189ca9e95da9", kill_on_drop: false }` [INFO] running `Command { std: "docker" "inspect" "7e544ac18470eaad3ab162dd5f2b94d92ffcbb1b15b349adc207189ca9e95da9", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "7e544ac18470eaad3ab162dd5f2b94d92ffcbb1b15b349adc207189ca9e95da9", kill_on_drop: false }` [INFO] [stdout] 7e544ac18470eaad3ab162dd5f2b94d92ffcbb1b15b349adc207189ca9e95da9 [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:c46a2d1a26fb48b37929c74ca49dd9409f2375a0a3bdb8fe07617f3ffccaa889" "/opt/rustwide/cargo-home/bin/cargo" "+4a04890980766cc79878135f5ade8c0c4321e943" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }` [INFO] [stdout] 9786bc9283938f1e4afc42a4793f1e308e29f622883d2d9f7d78631c827d301d [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" "9786bc9283938f1e4afc42a4793f1e308e29f622883d2d9f7d78631c827d301d", kill_on_drop: false }` [INFO] [stderr] Checking leetcode-rust v0.1.0 (/opt/rustwide/workdir) [INFO] [stdout] warning: struct is never constructed: `Solution` [INFO] [stdout] --> src/add_strings.rs:15:12 [INFO] [stdout] | [INFO] [stdout] 15 | pub 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: `add_strings` [INFO] [stdout] --> src/add_strings.rs:19:12 [INFO] [stdout] | [INFO] [stdout] 19 | pub fn add_strings(mut num1: String, mut num2: String) -> String { [INFO] [stdout] | ^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: struct is never constructed: `Solution` [INFO] [stdout] --> src/course_schedule.rs:25:12 [INFO] [stdout] | [INFO] [stdout] 25 | pub struct Solution {} [INFO] [stdout] | ^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: associated function is never used: `can_finish` [INFO] [stdout] --> src/course_schedule.rs:28:12 [INFO] [stdout] | [INFO] [stdout] 28 | pub fn can_finish(num_courses: i32, prerequisites: Vec>) -> bool { [INFO] [stdout] | ^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: associated function is never used: `new` [INFO] [stdout] --> src/same_tree.rs:11:12 [INFO] [stdout] | [INFO] [stdout] 11 | pub fn new(val: i32) -> Self { [INFO] [stdout] | ^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: struct is never constructed: `Solution` [INFO] [stdout] --> src/same_tree.rs:58:12 [INFO] [stdout] | [INFO] [stdout] 58 | pub struct Solution {} [INFO] [stdout] | ^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: associated function is never used: `dfs` [INFO] [stdout] --> src/same_tree.rs:61:12 [INFO] [stdout] | [INFO] [stdout] 61 | pub fn dfs(p: Option>>, q: Option>>) -> bool { [INFO] [stdout] | ^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: struct is never constructed: `Solution` [INFO] [stdout] --> src/valid_parentheses.rs:34:12 [INFO] [stdout] | [INFO] [stdout] 34 | pub struct Solution {} [INFO] [stdout] | ^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: associated function is never used: `is_valid` [INFO] [stdout] --> src/valid_parentheses.rs:37:12 [INFO] [stdout] | [INFO] [stdout] 37 | pub fn is_valid(s: String) -> bool { [INFO] [stdout] | ^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: struct is never constructed: `Solution` [INFO] [stdout] --> src/remove_duplicates_from_sorted_array.rs:38:12 [INFO] [stdout] | [INFO] [stdout] 38 | pub struct Solution {} [INFO] [stdout] | ^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: associated function is never used: `remove_duplicates` [INFO] [stdout] --> src/remove_duplicates_from_sorted_array.rs:41:12 [INFO] [stdout] | [INFO] [stdout] 41 | pub fn remove_duplicates(nums: &mut Vec) -> i32 { [INFO] [stdout] | ^^^^^^^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: 11 warnings emitted [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] Finished dev [unoptimized + debuginfo] target(s) in 1.15s [INFO] running `Command { std: "docker" "inspect" "9786bc9283938f1e4afc42a4793f1e308e29f622883d2d9f7d78631c827d301d", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "9786bc9283938f1e4afc42a4793f1e308e29f622883d2d9f7d78631c827d301d", kill_on_drop: false }` [INFO] [stdout] 9786bc9283938f1e4afc42a4793f1e308e29f622883d2d9f7d78631c827d301d