[INFO] cloning repository https://github.com/SpecificProtagonist/connect4
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/SpecificProtagonist/connect4" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FSpecificProtagonist%2Fconnect4", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FSpecificProtagonist%2Fconnect4'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] a32c6ccde57d748e58c4ba6f6ff4131b2454d016
[INFO] checking SpecificProtagonist/connect4 against try#53184dc07942a1944769a9e15fc2cb08c9f62e9d for pr-99197
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FSpecificProtagonist%2Fconnect4" "/workspace/builds/worker-7/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-7/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/SpecificProtagonist/connect4 on toolchain 53184dc07942a1944769a9e15fc2cb08c9f62e9d
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+53184dc07942a1944769a9e15fc2cb08c9f62e9d" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/SpecificProtagonist/connect4
[INFO] finished tweaking git repo https://github.com/SpecificProtagonist/connect4
[INFO] tweaked toml for git repo https://github.com/SpecificProtagonist/connect4 written to /workspace/builds/worker-7/source/Cargo.toml
[INFO] crate git repo https://github.com/SpecificProtagonist/connect4 already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+53184dc07942a1944769a9e15fc2cb08c9f62e9d" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/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:ecb52c4cf6672b83cc996368a05b4a059042425f2b6ba9cd23a06cdead5d8d70" "/opt/rustwide/cargo-home/bin/cargo" "+53184dc07942a1944769a9e15fc2cb08c9f62e9d" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] d32f60807fa2faed6215c1f8237ce8dcfae7227006775cf40ad2039c13b46652
[INFO] running `Command { std: "docker" "start" "-a" "d32f60807fa2faed6215c1f8237ce8dcfae7227006775cf40ad2039c13b46652", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "d32f60807fa2faed6215c1f8237ce8dcfae7227006775cf40ad2039c13b46652", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "d32f60807fa2faed6215c1f8237ce8dcfae7227006775cf40ad2039c13b46652", kill_on_drop: false }`
[INFO] [stdout] d32f60807fa2faed6215c1f8237ce8dcfae7227006775cf40ad2039c13b46652
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/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:ecb52c4cf6672b83cc996368a05b4a059042425f2b6ba9cd23a06cdead5d8d70" "/opt/rustwide/cargo-home/bin/cargo" "+53184dc07942a1944769a9e15fc2cb08c9f62e9d" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] f45ea9e92a84a84ea2b8ac26f17a7ecf7baf4976909c42619bdb79962346ae14
[INFO] running `Command { std: "docker" "start" "-a" "f45ea9e92a84a84ea2b8ac26f17a7ecf7baf4976909c42619bdb79962346ae14", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.85
[INFO] [stderr]    Compiling version_check v0.9.2
[INFO] [stderr]    Compiling proc-macro2 v1.0.24
[INFO] [stderr]    Compiling const_fn v0.4.5
[INFO] [stderr]    Compiling syn v1.0.60
[INFO] [stderr]    Compiling rayon-core v1.9.0
[INFO] [stderr]    Compiling getrandom v0.2.2
[INFO] [stderr]    Compiling crossbeam-utils v0.8.1
[INFO] [stderr]    Compiling memoffset v0.6.1
[INFO] [stderr]    Compiling rayon v1.5.0
[INFO] [stderr]    Compiling proc-macro-error-attr v1.0.4
[INFO] [stderr]    Compiling proc-macro-error v1.0.4
[INFO] [stderr]    Compiling quote v1.0.8
[INFO] [stderr]     Checking crossbeam-epoch v0.9.1
[INFO] [stderr]     Checking crossbeam-channel v0.5.0
[INFO] [stderr]     Checking num_cpus v1.13.0
[INFO] [stderr]     Checking atty v0.2.14
[INFO] [stderr]     Checking clap v2.33.3
[INFO] [stderr]     Checking crossbeam-deque v0.8.0
[INFO] [stderr]    Compiling structopt-derive v0.4.14
[INFO] [stderr]     Checking structopt v0.3.21
[INFO] [stderr]     Checking connect4 v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused import: `clap`
[INFO] [stdout]  --> src/main.rs:8:17
[INFO] [stdout]   |
[INFO] [stdout] 8 | use structopt::{clap, StructOpt};
[INFO] [stdout]   |                 ^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `clap`
[INFO] [stdout]  --> src/main.rs:8:17
[INFO] [stdout]   |
[INFO] [stdout] 8 | use structopt::{clap, StructOpt};
[INFO] [stdout]   |                 ^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function `turn` is never used
[INFO] [stdout]   --> src/lib.rs:96:12
[INFO] [stdout]    |
[INFO] [stdout] 96 |     pub fn turn(&self) -> usize {
[INFO] [stdout]    |            ^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function `turn` is never used
[INFO] [stdout]   --> src/lib.rs:96:12
[INFO] [stdout]    |
[INFO] [stdout] 96 |     pub fn turn(&self) -> usize {
[INFO] [stdout]    |            ^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 2 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 2 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 8.77s
[INFO] running `Command { std: "docker" "inspect" "f45ea9e92a84a84ea2b8ac26f17a7ecf7baf4976909c42619bdb79962346ae14", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "f45ea9e92a84a84ea2b8ac26f17a7ecf7baf4976909c42619bdb79962346ae14", kill_on_drop: false }`
[INFO] [stdout] f45ea9e92a84a84ea2b8ac26f17a7ecf7baf4976909c42619bdb79962346ae14