[INFO] cloning repository https://github.com/ckass19/Reversi-with-MTCS
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/ckass19/Reversi-with-MTCS" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fckass19%2FReversi-with-MTCS", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fckass19%2FReversi-with-MTCS'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] b69bafde861b4b9e54597776979427740d6b09d1
[INFO] building ckass19/Reversi-with-MTCS 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%2Fckass19%2FReversi-with-MTCS" "/workspace/builds/worker-5-tc1/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-5-tc1/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/ckass19/Reversi-with-MTCS 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/ckass19/Reversi-with-MTCS
[INFO] finished tweaking git repo https://github.com/ckass19/Reversi-with-MTCS
[INFO] tweaked toml for git repo https://github.com/ckass19/Reversi-with-MTCS written to /workspace/builds/worker-5-tc1/source/Cargo.toml
[INFO] crate git repo https://github.com/ckass19/Reversi-with-MTCS 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] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-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] 77ebcc7a196e724b314f9fc9a9b241574cd5472ab5a6f6b70c302d5fc4120cc5
[INFO] running `Command { std: "docker" "start" "-a" "77ebcc7a196e724b314f9fc9a9b241574cd5472ab5a6f6b70c302d5fc4120cc5", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "77ebcc7a196e724b314f9fc9a9b241574cd5472ab5a6f6b70c302d5fc4120cc5", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "77ebcc7a196e724b314f9fc9a9b241574cd5472ab5a6f6b70c302d5fc4120cc5", kill_on_drop: false }`
[INFO] [stdout] 77ebcc7a196e724b314f9fc9a9b241574cd5472ab5a6f6b70c302d5fc4120cc5
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-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] 5cd7ce51ab45b7b0a37607ac4b511eabdc1a1b6b2ed3047d19682fdde51f6903
[INFO] running `Command { std: "docker" "start" "-a" "5cd7ce51ab45b7b0a37607ac4b511eabdc1a1b6b2ed3047d19682fdde51f6903", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.74
[INFO] [stderr]    Compiling getrandom v0.1.14
[INFO] [stderr]    Compiling cfg-if v0.1.10
[INFO] [stderr]    Compiling unicode-xid v0.0.4
[INFO] [stderr]    Compiling quote v0.3.15
[INFO] [stderr]    Compiling ppv-lite86 v0.2.8
[INFO] [stderr]    Compiling synom v0.11.3
[INFO] [stderr]    Compiling syn v0.11.11
[INFO] [stderr]    Compiling rand_core v0.5.1
[INFO] [stderr]    Compiling rand_chacha v0.2.2
[INFO] [stderr]    Compiling rand v0.7.3
[INFO] [stderr]    Compiling enum-display-derive v0.1.0
[INFO] [stderr]    Compiling final_project v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: field `next_player` is never read
[INFO] [stdout]    --> src/game.rs:100:9
[INFO] [stdout]     |
[INFO] [stdout] 98  | pub struct Board{
[INFO] [stdout]     |            ----- field in this struct
[INFO] [stdout] 99  |     pub current_player: Player,
[INFO] [stdout] 100 |     pub next_player: Player,
[INFO] [stdout]     |         ^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `Board` has derived impls for the traits `Debug` and `Clone`, but these are intentionally ignored during dead code analysis
[INFO] [stdout]     = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 1.47s
[INFO] running `Command { std: "docker" "inspect" "5cd7ce51ab45b7b0a37607ac4b511eabdc1a1b6b2ed3047d19682fdde51f6903", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "5cd7ce51ab45b7b0a37607ac4b511eabdc1a1b6b2ed3047d19682fdde51f6903", kill_on_drop: false }`
[INFO] [stdout] 5cd7ce51ab45b7b0a37607ac4b511eabdc1a1b6b2ed3047d19682fdde51f6903
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-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] 37631e8d528b1c8eda42fda0192757bac19a5921831c4a5858d58212b960ef38
[INFO] running `Command { std: "docker" "start" "-a" "37631e8d528b1c8eda42fda0192757bac19a5921831c4a5858d58212b960ef38", kill_on_drop: false }`
[INFO] [stderr]    Compiling final_project v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: field `next_player` is never read
[INFO] [stdout]    --> src/game.rs:100:9
[INFO] [stdout]     |
[INFO] [stdout] 98  | pub struct Board{
[INFO] [stdout]     |            ----- field in this struct
[INFO] [stdout] 99  |     pub current_player: Player,
[INFO] [stdout] 100 |     pub next_player: Player,
[INFO] [stdout]     |         ^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `Board` has derived impls for the traits `Debug` and `Clone`, but these are intentionally ignored during dead code analysis
[INFO] [stdout]     = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 0.13s
[INFO] running `Command { std: "docker" "inspect" "37631e8d528b1c8eda42fda0192757bac19a5921831c4a5858d58212b960ef38", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "37631e8d528b1c8eda42fda0192757bac19a5921831c4a5858d58212b960ef38", kill_on_drop: false }`
[INFO] [stdout] 37631e8d528b1c8eda42fda0192757bac19a5921831c4a5858d58212b960ef38