[INFO] cloning repository https://github.com/nlflint/chess_an
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/nlflint/chess_an" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fnlflint%2Fchess_an", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fnlflint%2Fchess_an'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 925349865d53916cd92c76ec103206a39b6d2e34
[INFO] testing nlflint/chess_an against 1.55.0 for beta-1.56-1
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fnlflint%2Fchess_an" "/workspace/builds/worker-5/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-5/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/nlflint/chess_an on toolchain 1.55.0
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.55.0" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/nlflint/chess_an
[INFO] finished tweaking git repo https://github.com/nlflint/chess_an
[INFO] tweaked toml for git repo https://github.com/nlflint/chess_an written to /workspace/builds/worker-5/source/Cargo.toml
[INFO] crate git repo https://github.com/nlflint/chess_an already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.55.0" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5/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:a89201d6b5b9fd45c15d5952ece0a0129e7e80cb26ec023fd59cf09bc26f1604" "/opt/rustwide/cargo-home/bin/cargo" "+1.55.0" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 9a00a75303db342aa511708c9ee08d70990e8480b97e5e22ce267be1c626f8a5
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] running `Command { std: "docker" "start" "-a" "9a00a75303db342aa511708c9ee08d70990e8480b97e5e22ce267be1c626f8a5", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "9a00a75303db342aa511708c9ee08d70990e8480b97e5e22ce267be1c626f8a5", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "9a00a75303db342aa511708c9ee08d70990e8480b97e5e22ce267be1c626f8a5", kill_on_drop: false }`
[INFO] [stdout] 9a00a75303db342aa511708c9ee08d70990e8480b97e5e22ce267be1c626f8a5
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5/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=warn" "-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:a89201d6b5b9fd45c15d5952ece0a0129e7e80cb26ec023fd59cf09bc26f1604" "/opt/rustwide/cargo-home/bin/cargo" "+1.55.0" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 945476bb09e1228a8a220ec1dd79a2857a5a7b0b16b0dc0ffce7880e8839d51b
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] running `Command { std: "docker" "start" "-a" "945476bb09e1228a8a220ec1dd79a2857a5a7b0b16b0dc0ffce7880e8839d51b", kill_on_drop: false }`
[INFO] [stderr]    Compiling chess_an v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] error: expected item, found `[`
[INFO] [stdout]  --> src/main.rs:3:1
[INFO] [stdout]   |
[INFO] [stdout] 3 | [derive(Debug, PartialEq)]
[INFO] [stdout]   | ^ expected item
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to previous error
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `chess_an` due to 2 previous errors
[INFO] running `Command { std: "docker" "inspect" "945476bb09e1228a8a220ec1dd79a2857a5a7b0b16b0dc0ffce7880e8839d51b", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "945476bb09e1228a8a220ec1dd79a2857a5a7b0b16b0dc0ffce7880e8839d51b", kill_on_drop: false }`
[INFO] [stdout] 945476bb09e1228a8a220ec1dd79a2857a5a7b0b16b0dc0ffce7880e8839d51b