[INFO] cloning repository https://github.com/ssttevee/rust-mcts-connect-four
[INFO] running `Command { std: "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", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fssttevee%2Frust-mcts-connect-four'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] d09b9e4390457f868b1a414061365653ce75e2a2
[INFO] checking ssttevee/rust-mcts-connect-four against master#6d05c430d2f0573bf98320bb1d2457a72ea1e67f for pr-116607
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fssttevee%2Frust-mcts-connect-four" "/workspace/builds/worker-2-tc1/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-2-tc1/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/ssttevee/rust-mcts-connect-four on toolchain 6d05c430d2f0573bf98320bb1d2457a72ea1e67f
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+6d05c430d2f0573bf98320bb1d2457a72ea1e67f" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[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-2-tc1/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 `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+6d05c430d2f0573bf98320bb1d2457a72ea1e67f" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr] warning: file `/workspace/builds/worker-2-tc1/source/src/main.rs` found to be present in multiple build targets:
[INFO] [stderr]   * `lib` target `libc4`
[INFO] [stderr]   * `bin` target `connect-4`
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded wasm-bindgen-macro v0.2.48
[INFO] [stderr]   Downloaded wasm-bindgen-backend v0.2.48
[INFO] [stderr]   Downloaded wasm-bindgen-shared v0.2.48
[INFO] [stderr]   Downloaded syn v0.15.39
[INFO] [stderr]   Downloaded wasm-bindgen-macro-support v0.2.48
[INFO] [stderr]   Downloaded bumpalo v2.5.0
[INFO] [stderr]   Downloaded wasm-bindgen v0.2.48
[INFO] [stderr]   Downloaded serde v1.0.94
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-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@sha256:023092b8bfa974c7f3e45c5ce651cc8dd3afd5e76915d5995b8dacd3032bf956" "/opt/rustwide/cargo-home/bin/cargo" "+6d05c430d2f0573bf98320bb1d2457a72ea1e67f" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 630ad12ff4c88ae9ae44bc61d083f3b6140e0bb1ad7293fd0154c9be30a83137
[INFO] running `Command { std: "docker" "start" "-a" "630ad12ff4c88ae9ae44bc61d083f3b6140e0bb1ad7293fd0154c9be30a83137", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "630ad12ff4c88ae9ae44bc61d083f3b6140e0bb1ad7293fd0154c9be30a83137", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "630ad12ff4c88ae9ae44bc61d083f3b6140e0bb1ad7293fd0154c9be30a83137", kill_on_drop: false }`
[INFO] [stdout] 630ad12ff4c88ae9ae44bc61d083f3b6140e0bb1ad7293fd0154c9be30a83137
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-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@sha256:023092b8bfa974c7f3e45c5ce651cc8dd3afd5e76915d5995b8dacd3032bf956" "/opt/rustwide/cargo-home/bin/cargo" "+6d05c430d2f0573bf98320bb1d2457a72ea1e67f" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] cf43b5fde850bf9658e1da1b8f8e50704fb38887ed207237f3cc38f0e9521a8b
[INFO] running `Command { std: "docker" "start" "-a" "cf43b5fde850bf9658e1da1b8f8e50704fb38887ed207237f3cc38f0e9521a8b", kill_on_drop: false }`
[INFO] [stderr] warning: file `/opt/rustwide/workdir/src/main.rs` found to be present in multiple build targets:
[INFO] [stderr]   * `lib` target `libc4`
[INFO] [stderr]   * `bin` target `connect-4`
[INFO] [stderr]    Compiling libc v0.2.58
[INFO] [stderr]     Checking spin v0.5.0
[INFO] [stderr]    Compiling autocfg v0.1.4
[INFO] [stderr]     Checking ppv-lite86 v0.2.5
[INFO] [stderr]     Checking numtoa v0.1.0
[INFO] [stderr]     Checking either v1.5.2
[INFO] [stderr]     Checking lazy_static v1.3.0
[INFO] [stderr]     Checking itertools v0.8.0
[INFO] [stderr]    Compiling rand_chacha v0.2.0
[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] [stdout] warning: function `main` is never used
[INFO] [stdout]   --> src/main.rs:21:4
[INFO] [stdout]    |
[INFO] [stdout] 21 | fn main() {
[INFO] [stdout]    |    ^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `player_move` is never used
[INFO] [stdout]   --> src/cli.rs:23:4
[INFO] [stdout]    |
[INFO] [stdout] 23 | fn player_move<F: Fn(&Game) -> ()>(game: &mut Game, input: &mut io::Lines<io::StdinLock<'_>>, print_board: F) -> Result<(usize, usize), D...
[INFO] [stdout]    |    ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `mcts_move` is never used
[INFO] [stdout]   --> src/cli.rs:84:4
[INFO] [stdout]    |
[INFO] [stdout] 84 | fn mcts_move(game: &mut Game, mcts: &MCTS) -> (usize, usize) {
[INFO] [stdout]    |    ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `hbot_move` is never used
[INFO] [stdout]    --> src/cli.rs:110:4
[INFO] [stdout]     |
[INFO] [stdout] 110 | fn hbot_move(game: &mut Game) -> (usize, usize) {
[INFO] [stdout]     |    ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `print_board_top` is never used
[INFO] [stdout]    --> src/cli.rs:115:4
[INFO] [stdout]     |
[INFO] [stdout] 115 | fn print_board_top(cols: usize) {
[INFO] [stdout]     |    ^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `print_board` is never used
[INFO] [stdout]    --> src/cli.rs:119:4
[INFO] [stdout]     |
[INFO] [stdout] 119 | fn print_board(game: &Game, last_move: Option<(usize, usize)>) {
[INFO] [stdout]     |    ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: enum `Opponent` is never used
[INFO] [stdout]    --> src/cli.rs:129:6
[INFO] [stdout]     |
[INFO] [stdout] 129 | enum Opponent {
[INFO] [stdout]     |      ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `select_opponent` is never used
[INFO] [stdout]    --> src/cli.rs:134:4
[INFO] [stdout]     |
[INFO] [stdout] 134 | fn select_opponent(input: &mut io::Lines<io::StdinLock<'_>>) -> Result<Opponent, Done> {
[INFO] [stdout]     |    ^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `start` is never used
[INFO] [stdout]    --> src/cli.rs:182:8
[INFO] [stdout]     |
[INFO] [stdout] 182 | pub fn start() {
[INFO] [stdout]     |        ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 9 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 1.89s
[INFO] running `Command { std: "docker" "inspect" "cf43b5fde850bf9658e1da1b8f8e50704fb38887ed207237f3cc38f0e9521a8b", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "cf43b5fde850bf9658e1da1b8f8e50704fb38887ed207237f3cc38f0e9521a8b", kill_on_drop: false }`
[INFO] [stdout] cf43b5fde850bf9658e1da1b8f8e50704fb38887ed207237f3cc38f0e9521a8b