[INFO] cloning repository https://github.com/geekylink/tictactoe-ai-minmax
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/geekylink/tictactoe-ai-minmax" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fgeekylink%2Ftictactoe-ai-minmax", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fgeekylink%2Ftictactoe-ai-minmax'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] e1b0887d53c97dcd90a749baadbaa04fb61ea10b
[INFO] building geekylink/tictactoe-ai-minmax against master#11663cd3bfefef7d34e8f0892c250bf698049392+rustflags=-Dtail-expr-drop-order for pr-134523
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fgeekylink%2Ftictactoe-ai-minmax" "/workspace/builds/worker-1-tc1/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-1-tc1/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/geekylink/tictactoe-ai-minmax on toolchain 11663cd3bfefef7d34e8f0892c250bf698049392
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+11663cd3bfefef7d34e8f0892c250bf698049392" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/geekylink/tictactoe-ai-minmax
[INFO] finished tweaking git repo https://github.com/geekylink/tictactoe-ai-minmax
[INFO] tweaked toml for git repo https://github.com/geekylink/tictactoe-ai-minmax written to /workspace/builds/worker-1-tc1/source/Cargo.toml
[INFO] crate git repo https://github.com/geekylink/tictactoe-ai-minmax 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" "+11663cd3bfefef7d34e8f0892c250bf698049392" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-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:f3a9d4ad9d972b27faf3965f35b62e55ba32bbce8f20bc8fe909558a86702fde" "/opt/rustwide/cargo-home/bin/cargo" "+11663cd3bfefef7d34e8f0892c250bf698049392" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 8fbbacfe89927cd51593120b9b1d4d74d36811c1bbcaba705b43801ddef40449
[INFO] running `Command { std: "docker" "start" "-a" "8fbbacfe89927cd51593120b9b1d4d74d36811c1bbcaba705b43801ddef40449", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "8fbbacfe89927cd51593120b9b1d4d74d36811c1bbcaba705b43801ddef40449", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "8fbbacfe89927cd51593120b9b1d4d74d36811c1bbcaba705b43801ddef40449", kill_on_drop: false }`
[INFO] [stdout] 8fbbacfe89927cd51593120b9b1d4d74d36811c1bbcaba705b43801ddef40449
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-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 -Dtail-expr-drop-order" "-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:f3a9d4ad9d972b27faf3965f35b62e55ba32bbce8f20bc8fe909558a86702fde" "/opt/rustwide/cargo-home/bin/cargo" "+11663cd3bfefef7d34e8f0892c250bf698049392" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] cd4a448f8f414494b8b28adbffc32d40cc8ba55fb1a80dbb03f3764d7967be50
[INFO] running `Command { std: "docker" "start" "-a" "cd4a448f8f414494b8b28adbffc32d40cc8ba55fb1a80dbb03f3764d7967be50", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.124
[INFO] [stderr]    Compiling cfg-if v1.0.0
[INFO] [stderr]    Compiling ppv-lite86 v0.2.16
[INFO] [stderr]    Compiling unicode-width v0.1.9
[INFO] [stderr]    Compiling ansi_term v0.12.1
[INFO] [stderr]    Compiling bitflags v1.3.2
[INFO] [stderr]    Compiling vec_map v0.8.2
[INFO] [stderr]    Compiling strsim v0.8.0
[INFO] [stderr]    Compiling textwrap v0.11.0
[INFO] [stderr]    Compiling getrandom v0.2.6
[INFO] [stderr]    Compiling atty v0.2.14
[INFO] [stderr]    Compiling clap v2.34.0
[INFO] [stderr]    Compiling rand_core v0.6.3
[INFO] [stderr]    Compiling rand_chacha v0.3.1
[INFO] [stderr]    Compiling rand v0.8.5
[INFO] [stderr]    Compiling tictactoe-ai v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused variable: `next_move`
[INFO] [stdout]    --> src/main.rs:234:25
[INFO] [stdout]     |
[INFO] [stdout] 234 |             let (score, next_move) = self.min_max(max_depth, depth+1, next_player, board);
[INFO] [stdout]     |                         ^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_next_move`
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `score`
[INFO] [stdout]    --> src/main.rs:247:13
[INFO] [stdout]     |
[INFO] [stdout] 247 |        let (score, next_move) = self.min_max(max_depth, 0, player_id, Tictactoe::new_from(self));
[INFO] [stdout]     |             ^^^^^ help: if this is intentional, prefix it with an underscore: `_score`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `i`
[INFO] [stdout]    --> src/main.rs:399:13
[INFO] [stdout]     |
[INFO] [stdout] 399 |         for i in 0..iterations {
[INFO] [stdout]     |             ^ help: if this is intentional, prefix it with an underscore: `_i`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 5.53s
[INFO] running `Command { std: "docker" "inspect" "cd4a448f8f414494b8b28adbffc32d40cc8ba55fb1a80dbb03f3764d7967be50", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "cd4a448f8f414494b8b28adbffc32d40cc8ba55fb1a80dbb03f3764d7967be50", kill_on_drop: false }`
[INFO] [stdout] cd4a448f8f414494b8b28adbffc32d40cc8ba55fb1a80dbb03f3764d7967be50
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-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 -Dtail-expr-drop-order" "-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:f3a9d4ad9d972b27faf3965f35b62e55ba32bbce8f20bc8fe909558a86702fde" "/opt/rustwide/cargo-home/bin/cargo" "+11663cd3bfefef7d34e8f0892c250bf698049392" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 4d9fbeb22f211c67f748f80c337742e90cf6359a3fd546d240e2d11073fe0718
[INFO] running `Command { std: "docker" "start" "-a" "4d9fbeb22f211c67f748f80c337742e90cf6359a3fd546d240e2d11073fe0718", kill_on_drop: false }`
[INFO] [stderr]    Compiling tictactoe-ai v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused variable: `next_move`
[INFO] [stdout]    --> src/main.rs:234:25
[INFO] [stdout]     |
[INFO] [stdout] 234 |             let (score, next_move) = self.min_max(max_depth, depth+1, next_player, board);
[INFO] [stdout]     |                         ^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_next_move`
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `score`
[INFO] [stdout]    --> src/main.rs:247:13
[INFO] [stdout]     |
[INFO] [stdout] 247 |        let (score, next_move) = self.min_max(max_depth, 0, player_id, Tictactoe::new_from(self));
[INFO] [stdout]     |             ^^^^^ help: if this is intentional, prefix it with an underscore: `_score`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `i`
[INFO] [stdout]    --> src/main.rs:399:13
[INFO] [stdout]     |
[INFO] [stdout] 399 |         for i in 0..iterations {
[INFO] [stdout]     |             ^ help: if this is intentional, prefix it with an underscore: `_i`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 0.15s
[INFO] running `Command { std: "docker" "inspect" "4d9fbeb22f211c67f748f80c337742e90cf6359a3fd546d240e2d11073fe0718", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "4d9fbeb22f211c67f748f80c337742e90cf6359a3fd546d240e2d11073fe0718", kill_on_drop: false }`
[INFO] [stdout] 4d9fbeb22f211c67f748f80c337742e90cf6359a3fd546d240e2d11073fe0718