[INFO] cloning repository https://github.com/EmilyWinjum/connect-four-ish
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/EmilyWinjum/connect-four-ish" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FEmilyWinjum%2Fconnect-four-ish", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FEmilyWinjum%2Fconnect-four-ish'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 15ad39ab03a24f851a72359b1d115e2dcf9c8a10
[INFO] checking EmilyWinjum/connect-four-ish against try#3f7b27fe41ccd116a4c0829bd9a14b65bada4578 for pr-96970
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FEmilyWinjum%2Fconnect-four-ish" "/workspace/builds/worker-10/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-10/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/EmilyWinjum/connect-four-ish on toolchain 3f7b27fe41ccd116a4c0829bd9a14b65bada4578
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+3f7b27fe41ccd116a4c0829bd9a14b65bada4578" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/EmilyWinjum/connect-four-ish
[INFO] finished tweaking git repo https://github.com/EmilyWinjum/connect-four-ish
[INFO] tweaked toml for git repo https://github.com/EmilyWinjum/connect-four-ish written to /workspace/builds/worker-10/source/Cargo.toml
[INFO] crate git repo https://github.com/EmilyWinjum/connect-four-ish already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+3f7b27fe41ccd116a4c0829bd9a14b65bada4578" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `Command { std: "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" "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:d190cb871061d98bc6d0581d85cb2ecb09a0f8a142ba5463de30be9999fc3251" "/opt/rustwide/cargo-home/bin/cargo" "+3f7b27fe41ccd116a4c0829bd9a14b65bada4578" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 94e24c71a83fa6b446efbfc7165844a5c506bf9a2e88f0e68ca4da719a85b5b0
[INFO] running `Command { std: "docker" "start" "-a" "94e24c71a83fa6b446efbfc7165844a5c506bf9a2e88f0e68ca4da719a85b5b0", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "94e24c71a83fa6b446efbfc7165844a5c506bf9a2e88f0e68ca4da719a85b5b0", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "94e24c71a83fa6b446efbfc7165844a5c506bf9a2e88f0e68ca4da719a85b5b0", kill_on_drop: false }`
[INFO] [stdout] 94e24c71a83fa6b446efbfc7165844a5c506bf9a2e88f0e68ca4da719a85b5b0
[INFO] running `Command { std: "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" "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" "--user" "0:0" "--network" "none" "ghcr.io/rust-lang/crates-build-env/linux@sha256:d190cb871061d98bc6d0581d85cb2ecb09a0f8a142ba5463de30be9999fc3251" "/opt/rustwide/cargo-home/bin/cargo" "+3f7b27fe41ccd116a4c0829bd9a14b65bada4578" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 0ac2d6bb3e79f1c05e739b3dafa01187ec1fab8011d77f373fe101606a7273c3
[INFO] running `Command { std: "docker" "start" "-a" "0ac2d6bb3e79f1c05e739b3dafa01187ec1fab8011d77f373fe101606a7273c3", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Checking connect_four v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: field is never read: `humans`
[INFO] [stdout]   --> src/game.rs:64:9
[INFO] [stdout]    |
[INFO] [stdout] 64 |         humans: usize, // contains the number of human players for the game
[INFO] [stdout]    |         ^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field is never read: `humans`
[INFO] [stdout]   --> src/game.rs:64:9
[INFO] [stdout]    |
[INFO] [stdout] 64 |         humans: usize, // contains the number of human players for the game
[INFO] [stdout]    |         ^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 5.45s
[INFO] running `Command { std: "docker" "inspect" "0ac2d6bb3e79f1c05e739b3dafa01187ec1fab8011d77f373fe101606a7273c3", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "0ac2d6bb3e79f1c05e739b3dafa01187ec1fab8011d77f373fe101606a7273c3", kill_on_drop: false }`
[INFO] [stdout] 0ac2d6bb3e79f1c05e739b3dafa01187ec1fab8011d77f373fe101606a7273c3