[INFO] updating cached repository https://github.com/whalecold/leetcode [INFO] running `"git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "-c" "remote.origin.fetch=refs/heads/*:refs/heads/*" "fetch" "origin" "--force" "--prune"` [INFO] running `"git" "rev-parse" "HEAD"` [INFO] [stdout] 6b79827c11d80a1e38d9167b42970b178037b9b7 [INFO] checking whalecold/leetcode against try#13f916f63bc6575d5ff1f989237dfabe88981368 for pr-69880 [INFO] running `"git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fwhalecold%2Fleetcode" "/workspace/builds/worker-3/source"` [INFO] [stderr] Cloning into '/workspace/builds/worker-3/source'... [INFO] [stderr] done. [INFO] validating manifest of git repo https://github.com/whalecold/leetcode on toolchain 13f916f63bc6575d5ff1f989237dfabe88981368 [INFO] running `"/workspace/cargo-home/bin/cargo" "+13f916f63bc6575d5ff1f989237dfabe88981368" "read-manifest" "--manifest-path" "Cargo.toml"` [INFO] started tweaking git repo https://github.com/whalecold/leetcode [INFO] finished tweaking git repo https://github.com/whalecold/leetcode [INFO] tweaked toml for git repo https://github.com/whalecold/leetcode written to /workspace/builds/worker-3/source/Cargo.toml [INFO] crate git repo https://github.com/whalecold/leetcode already has a lockfile, it will not be regenerated [INFO] running `"/workspace/cargo-home/bin/cargo" "+13f916f63bc6575d5ff1f989237dfabe88981368" "fetch" "--locked" "--manifest-path" "Cargo.toml"` [INFO] [stderr] warning: An explicit [[bin]] section is specified in Cargo.toml which currently [INFO] [stderr] disables Cargo from automatically inferring other binary targets. [INFO] [stderr] This inference behavior will change in the Rust 2018 edition and the following [INFO] [stderr] files will be included as a binary target: [INFO] [stderr] [INFO] [stderr] * /workspace/builds/worker-3/source/src/main.rs [INFO] [stderr] [INFO] [stderr] This is likely to break cargo build or cargo test as these files may not be [INFO] [stderr] ready to be compiled as a binary target today. You can future-proof yourself [INFO] [stderr] and disable this warning by adding `autobins = false` to your [package] [INFO] [stderr] section. You may also move the files to a location where Cargo would not [INFO] [stderr] automatically infer them to be a target, such as in subfolders. [INFO] [stderr] [INFO] [stderr] For more information on this warning you can consult [INFO] [stderr] https://github.com/rust-lang/cargo/issues/5330 [INFO] [stderr] warning: path `/workspace/builds/worker-3/source/src/main.rs` was erroneously implicitly accepted for binary `leetcode`, [INFO] [stderr] please set bin.path in Cargo.toml [INFO] running `"docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3/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" "MAP_USER_ID=0" "-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" "--network" "none" "rustops/crates-build-env" "/opt/rustwide/cargo-home/bin/cargo" "+13f916f63bc6575d5ff1f989237dfabe88981368" "check" "--frozen" "--all" "--all-targets"` [INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap. [INFO] [stdout] c3ebbe4bb2a49a983101d6857993894358eb8890d47631d198e7a2f769559d9d [INFO] running `"docker" "start" "-a" "c3ebbe4bb2a49a983101d6857993894358eb8890d47631d198e7a2f769559d9d"` [INFO] [stderr] warning: An explicit [[bin]] section is specified in Cargo.toml which currently [INFO] [stderr] disables Cargo from automatically inferring other binary targets. [INFO] [stderr] This inference behavior will change in the Rust 2018 edition and the following [INFO] [stderr] files will be included as a binary target: [INFO] [stderr] [INFO] [stderr] * /opt/rustwide/workdir/src/main.rs [INFO] [stderr] [INFO] [stderr] This is likely to break cargo build or cargo test as these files may not be [INFO] [stderr] ready to be compiled as a binary target today. You can future-proof yourself [INFO] [stderr] and disable this warning by adding `autobins = false` to your [package] [INFO] [stderr] section. You may also move the files to a location where Cargo would not [INFO] [stderr] automatically infer them to be a target, such as in subfolders. [INFO] [stderr] [INFO] [stderr] For more information on this warning you can consult [INFO] [stderr] https://github.com/rust-lang/cargo/issues/5330 [INFO] [stderr] warning: path `/opt/rustwide/workdir/src/main.rs` was erroneously implicitly accepted for binary `leetcode`, [INFO] [stderr] please set bin.path in Cargo.toml [INFO] [stderr] Compiling bitflags v1.1.0 [INFO] [stderr] Compiling openssl v0.10.24 [INFO] [stderr] Checking ucd-util v0.1.5 [INFO] [stderr] Checking crossbeam-utils v0.6.6 [INFO] [stderr] Compiling openssl-sys v0.9.49 [INFO] [stderr] Checking miniz_oxide v0.3.2 [INFO] [stderr] Checking net2 v0.2.33 [INFO] [stderr] Checking termios v0.3.1 [INFO] [stderr] Checking inotify-sys v0.1.3 [INFO] [stderr] Checking clicolors-control v1.0.1 [INFO] [stderr] Checking atty v0.2.13 [INFO] [stderr] Checking filetime v0.2.7 [INFO] [stderr] Checking clicolors-control v0.2.0 [INFO] [stderr] Checking want v0.2.0 [INFO] [stderr] Checking encoding_rs v0.8.20 [INFO] [stderr] Checking url v2.1.0 [INFO] [stderr] Checking aho-corasick v0.6.10 [INFO] [stderr] Compiling syn v1.0.5 [INFO] [stderr] Checking backtrace v0.3.37 [INFO] [stderr] Checking cookie v0.12.0 [INFO] [stderr] Checking regex-syntax v0.5.6 [INFO] [stderr] Checking tokio-io v0.1.12 [INFO] [stderr] Checking uuid v0.7.4 [INFO] [stderr] Checking parking_lot_core v0.4.0 [INFO] [stderr] Compiling synstructure v0.10.2 [INFO] [stderr] Compiling mime_guess v2.0.1 [INFO] [stderr] Checking console v0.9.0 [INFO] [stderr] Checking mio v0.6.19 [INFO] [stderr] Checking tokio-executor v0.1.8 [INFO] [stderr] Checking crossbeam-epoch v0.7.2 [INFO] [stderr] Checking crossbeam-queue v0.1.2 [INFO] [stderr] Checking console v0.6.2 [INFO] [stderr] Checking error-chain v0.12.1 [INFO] [stderr] Checking parking_lot v0.7.1 [INFO] [stderr] Checking tokio-timer v0.2.11 [INFO] [stderr] Checking tokio-current-thread v0.1.6 [INFO] [stderr] Checking h2 v0.1.26 [INFO] [stderr] Checking crossbeam-deque v0.7.1 [INFO] [stderr] Checking flate2 v1.0.11 [INFO] [stderr] Checking inotify v0.6.1 [INFO] [stderr] Checking clap v2.33.0 [INFO] [stderr] Checking publicsuffix v1.5.3 [INFO] [stderr] Checking tokio-threadpool v0.1.15 [INFO] [stderr] Compiling native-tls v0.2.3 [INFO] [stderr] Checking tokio-reactor v0.1.9 [INFO] [stderr] Checking mio-extras v2.0.5 [INFO] [stderr] Compiling failure_derive v0.1.5 [INFO] [stderr] Checking notify v4.0.13 [INFO] [stderr] Checking tokio-tcp v0.1.3 [INFO] [stderr] Checking tokio v0.1.22 [INFO] [stderr] Checking regex v0.2.11 [INFO] [stderr] Checking failure v0.1.5 [INFO] [stderr] Checking hyper v0.12.35 [INFO] [stderr] Checking indicatif v0.9.0 [INFO] [stderr] Compiling serde_derive v1.0.101 [INFO] [stderr] Checking hyper-tls v0.3.2 [INFO] [stderr] Checking serde v1.0.101 [INFO] [stderr] Checking serde_json v1.0.40 [INFO] [stderr] Checking serde_urlencoded v0.5.5 [INFO] [stderr] Checking cookie_store v0.7.0 [INFO] [stderr] Checking reqwest v0.9.20 [INFO] [stderr] Checking leetcode-rust v0.1.0 (/opt/rustwide/workdir) [INFO] [stderr] warning: method is never used: `longest_common_prefix` [INFO] [stderr] --> src/exercises/n0014_longest_common_prefix.rs:36:5 [INFO] [stderr] | [INFO] [stderr] 36 | pub fn longest_common_prefix(strs: Vec) -> String { [INFO] [stderr] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stderr] | [INFO] [stderr] = note: `#[warn(dead_code)]` on by default [INFO] [stderr] [INFO] [stderr] warning: function is never used: `to_list` [INFO] [stderr] --> src/utils/linked_list.rs:14:8 [INFO] [stderr] | [INFO] [stderr] 14 | pub fn to_list(vec: Vec) -> Option> { [INFO] [stderr] | ^^^^^^^ [INFO] [stderr] [INFO] [stderr] Finished dev [unoptimized + debuginfo] target(s) in 1m 11s [INFO] running `"docker" "inspect" "c3ebbe4bb2a49a983101d6857993894358eb8890d47631d198e7a2f769559d9d"` [INFO] running `"docker" "rm" "-f" "c3ebbe4bb2a49a983101d6857993894358eb8890d47631d198e7a2f769559d9d"` [INFO] [stdout] c3ebbe4bb2a49a983101d6857993894358eb8890d47631d198e7a2f769559d9d