[INFO] cloning repository https://github.com/ssttevee/rust-mcts-connect-four [INFO] running `"git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/ssttevee/rust-mcts-connect-four" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fssttevee%2Frust-mcts-connect-four"` [INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fssttevee%2Frust-mcts-connect-four'... [INFO] running `"git" "rev-parse" "HEAD"` [INFO] [stdout] d09b9e4390457f868b1a414061365653ce75e2a2 [INFO] checking ssttevee/rust-mcts-connect-four against master#45d050cde277b22a755847338f2acc2c7b834141 for pr-71393 [INFO] running `"git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fssttevee%2Frust-mcts-connect-four" "/workspace/builds/worker-10/source"` [INFO] [stderr] Cloning into '/workspace/builds/worker-10/source'... [INFO] [stderr] done. [INFO] validating manifest of git repo https://github.com/ssttevee/rust-mcts-connect-four on toolchain 45d050cde277b22a755847338f2acc2c7b834141 [INFO] running `"/workspace/cargo-home/bin/cargo" "+45d050cde277b22a755847338f2acc2c7b834141" "read-manifest" "--manifest-path" "Cargo.toml"` [INFO] started tweaking git repo https://github.com/ssttevee/rust-mcts-connect-four [INFO] finished tweaking git repo https://github.com/ssttevee/rust-mcts-connect-four [INFO] tweaked toml for git repo https://github.com/ssttevee/rust-mcts-connect-four written to /workspace/builds/worker-10/source/Cargo.toml [INFO] crate git repo https://github.com/ssttevee/rust-mcts-connect-four already has a lockfile, it will not be regenerated [INFO] running `"/workspace/cargo-home/bin/cargo" "+45d050cde277b22a755847338f2acc2c7b834141" "fetch" "--locked" "--manifest-path" "Cargo.toml"` [INFO] [stderr] warning: file found to be present in multiple build targets: /workspace/builds/worker-10/source/src/main.rs [INFO] [stderr] Blocking waiting for file lock on package cache [INFO] [stderr] Blocking waiting for file lock on package cache [INFO] running `"docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-10/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-10/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" "+45d050cde277b22a755847338f2acc2c7b834141" "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] 45a5acb0dab31d1b179eb6e6c28b055a3c3842b366da13bf9c25f2ec0ef5dfc9 [INFO] running `"docker" "start" "-a" "45a5acb0dab31d1b179eb6e6c28b055a3c3842b366da13bf9c25f2ec0ef5dfc9"` [INFO] [stderr] warning: file found to be present in multiple build targets: /opt/rustwide/workdir/src/main.rs [INFO] [stderr] Blocking waiting for file lock on package cache [INFO] [stderr] Compiling libc v0.2.58 [INFO] [stderr] Checking spin v0.5.0 [INFO] [stderr] Checking either v1.5.2 [INFO] [stderr] Checking numtoa v0.1.0 [INFO] [stderr] Compiling rand_chacha v0.2.0 [INFO] [stderr] Checking lazy_static v1.3.0 [INFO] [stderr] Checking itertools v0.8.0 [INFO] [stderr] Checking c2-chacha v0.2.2 [INFO] [stderr] Checking getrandom v0.1.6 [INFO] [stderr] Checking termion v1.5.3 [INFO] [stderr] Checking rand_core v0.5.0 [INFO] [stderr] Checking rand v0.7.0 [INFO] [stderr] Checking connect-4 v0.1.0 (/opt/rustwide/workdir) [INFO] [stderr] warning: function is never used: `player_move` [INFO] [stderr] --> src/cli.rs:23:4 [INFO] [stderr] | [INFO] [stderr] 23 | fn player_move ()>(game: &mut Game, input: &mut io::Lines>, print_board: F) -> Result<(usize, usize), Done> { [INFO] [stderr] | ^^^^^^^^^^^ [INFO] [stderr] | [INFO] [stderr] = note: `#[warn(dead_code)]` on by default [INFO] [stderr] [INFO] [stderr] warning: function is never used: `mcts_move` [INFO] [stderr] --> src/cli.rs:84:4 [INFO] [stderr] | [INFO] [stderr] 84 | fn mcts_move(game: &mut Game, mcts: &MCTS) -> (usize, usize) { [INFO] [stderr] | ^^^^^^^^^ [INFO] [stderr] [INFO] [stderr] warning: function is never used: `hbot_move` [INFO] [stderr] --> src/cli.rs:110:4 [INFO] [stderr] | [INFO] [stderr] 110 | fn hbot_move(game: &mut Game) -> (usize, usize) { [INFO] [stderr] | ^^^^^^^^^ [INFO] [stderr] [INFO] [stderr] warning: function is never used: `print_board_top` [INFO] [stderr] --> src/cli.rs:115:4 [INFO] [stderr] | [INFO] [stderr] 115 | fn print_board_top(cols: usize) { [INFO] [stderr] | ^^^^^^^^^^^^^^^ [INFO] [stderr] [INFO] [stderr] warning: function is never used: `print_board` [INFO] [stderr] --> src/cli.rs:119:4 [INFO] [stderr] | [INFO] [stderr] 119 | fn print_board(game: &Game, last_move: Option<(usize, usize)>) { [INFO] [stderr] | ^^^^^^^^^^^ [INFO] [stderr] [INFO] [stderr] warning: enum is never used: `Opponent` [INFO] [stderr] --> src/cli.rs:129:6 [INFO] [stderr] | [INFO] [stderr] 129 | enum Opponent { [INFO] [stderr] | ^^^^^^^^ [INFO] [stderr] [INFO] [stderr] warning: function is never used: `select_opponent` [INFO] [stderr] --> src/cli.rs:134:4 [INFO] [stderr] | [INFO] [stderr] 134 | fn select_opponent(input: &mut io::Lines>) -> Result { [INFO] [stderr] | ^^^^^^^^^^^^^^^ [INFO] [stderr] [INFO] [stderr] warning: function is never used: `start` [INFO] [stderr] --> src/cli.rs:182:8 [INFO] [stderr] | [INFO] [stderr] 182 | pub fn start() { [INFO] [stderr] | ^^^^^ [INFO] [stderr] [INFO] [stderr] warning: function is never used: `main` [INFO] [stderr] --> src/main.rs:21:4 [INFO] [stderr] | [INFO] [stderr] 21 | fn main() { [INFO] [stderr] | ^^^^ [INFO] [stderr] [INFO] [stderr] warning: 9 warnings emitted [INFO] [stderr] [INFO] [stderr] Finished dev [unoptimized + debuginfo] target(s) in 5.91s [INFO] running `"docker" "inspect" "45a5acb0dab31d1b179eb6e6c28b055a3c3842b366da13bf9c25f2ec0ef5dfc9"` [INFO] running `"docker" "rm" "-f" "45a5acb0dab31d1b179eb6e6c28b055a3c3842b366da13bf9c25f2ec0ef5dfc9"` [INFO] [stdout] 45a5acb0dab31d1b179eb6e6c28b055a3c3842b366da13bf9c25f2ec0ef5dfc9