[INFO] cloning repository https://github.com/anowell/chess-proof
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/anowell/chess-proof" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fanowell%2Fchess-proof", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fanowell%2Fchess-proof'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 06c5130f9fe6903a42570f62a6a2d30c89194b35
[INFO] checking anowell/chess-proof against master#406e03fd02faf5cc8409a8b6b04c26990d6227e6 for pr-101437-1
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fanowell%2Fchess-proof" "/workspace/builds/worker-3/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-3/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/anowell/chess-proof on toolchain 406e03fd02faf5cc8409a8b6b04c26990d6227e6
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+406e03fd02faf5cc8409a8b6b04c26990d6227e6" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/anowell/chess-proof
[INFO] finished tweaking git repo https://github.com/anowell/chess-proof
[INFO] tweaked toml for git repo https://github.com/anowell/chess-proof written to /workspace/builds/worker-3/source/Cargo.toml
[INFO] crate git repo https://github.com/anowell/chess-proof already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+406e03fd02faf5cc8409a8b6b04c26990d6227e6" "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] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded failure_derive v0.1.8
[INFO] [stderr]   Downloaded synstructure v0.12.6
[INFO] [stderr]   Downloaded rand_pcg v0.2.1
[INFO] [stderr]   Downloaded crossbeam-channel v0.5.4
[INFO] [stderr]   Downloaded backtrace v0.3.65
[INFO] [stderr]   Downloaded quote v1.0.18
[INFO] [stderr]   Downloaded rustc-demangle v0.1.21
[INFO] [stderr]   Downloaded miniz_oxide v0.5.1
[INFO] [stderr]   Downloaded anyhow v1.0.57
[INFO] [stderr]   Downloaded object v0.28.3
[INFO] [stderr]   Downloaded gimli v0.26.1
[INFO] [stderr]   Downloaded rayon-core v1.9.2
[INFO] [stderr]   Downloaded crossbeam-epoch v0.9.8
[INFO] [stderr]   Downloaded addr2line v0.17.0
[INFO] [stderr]   Downloaded chess v3.2.0
[INFO] [stderr]   Downloaded libc v0.2.124
[INFO] [stderr]   Downloaded failure v0.1.8
[INFO] [stderr]   Downloaded rayon v1.5.2
[INFO] [stderr]   Downloaded crossbeam-utils v0.8.8
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3/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@sha256:824c28ce115f6b999260af6986f3384c158e782489540e41c0b698ca1d9fd927" "/opt/rustwide/cargo-home/bin/cargo" "+406e03fd02faf5cc8409a8b6b04c26990d6227e6" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 3b3ee3d28e8cf2e0591da57aeff94d57e8cbce6a861f342aa145b5fe8a473127
[INFO] running `Command { std: "docker" "start" "-a" "3b3ee3d28e8cf2e0591da57aeff94d57e8cbce6a861f342aa145b5fe8a473127", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "3b3ee3d28e8cf2e0591da57aeff94d57e8cbce6a861f342aa145b5fe8a473127", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "3b3ee3d28e8cf2e0591da57aeff94d57e8cbce6a861f342aa145b5fe8a473127", kill_on_drop: false }`
[INFO] [stdout] 3b3ee3d28e8cf2e0591da57aeff94d57e8cbce6a861f342aa145b5fe8a473127
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3/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" "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@sha256:824c28ce115f6b999260af6986f3384c158e782489540e41c0b698ca1d9fd927" "/opt/rustwide/cargo-home/bin/cargo" "+406e03fd02faf5cc8409a8b6b04c26990d6227e6" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 6ced6ccf622adec4a2381f3997fc93804fba2c86ae3f1fe2390a02d363f5ef3a
[INFO] running `Command { std: "docker" "start" "-a" "6ced6ccf622adec4a2381f3997fc93804fba2c86ae3f1fe2390a02d363f5ef3a", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]    Compiling memchr v2.4.1
[INFO] [stderr]    Compiling proc-macro2 v1.0.37
[INFO] [stderr]    Compiling autocfg v1.1.0
[INFO] [stderr]    Compiling unicode-xid v0.2.2
[INFO] [stderr]     Checking cfg-if v1.0.0
[INFO] [stderr]    Compiling cc v1.0.73
[INFO] [stderr]    Compiling syn v1.0.91
[INFO] [stderr]    Compiling libc v0.2.124
[INFO] [stderr]    Compiling crossbeam-utils v0.8.8
[INFO] [stderr]    Compiling failure_derive v0.1.8
[INFO] [stderr]    Compiling rand_core v0.5.1
[INFO] [stderr]    Compiling gimli v0.26.1
[INFO] [stderr]     Checking lazy_static v1.4.0
[INFO] [stderr]    Compiling adler v1.0.2
[INFO] [stderr]    Compiling rustc-demangle v0.1.21
[INFO] [stderr]    Compiling ppv-lite86 v0.2.16
[INFO] [stderr]    Compiling rayon-core v1.9.2
[INFO] [stderr]     Checking scopeguard v1.1.0
[INFO] [stderr]    Compiling anyhow v1.0.57
[INFO] [stderr]     Checking either v1.6.1
[INFO] [stderr]     Checking arrayvec v0.5.2
[INFO] [stderr]     Checking nodrop v0.1.14
[INFO] [stderr]    Compiling miniz_oxide v0.5.1
[INFO] [stderr]    Compiling rand_pcg v0.2.1
[INFO] [stderr]    Compiling memoffset v0.6.5
[INFO] [stderr]    Compiling crossbeam-epoch v0.9.8
[INFO] [stderr]    Compiling rayon v1.5.2
[INFO] [stderr]    Compiling rand_chacha v0.2.2
[INFO] [stderr]     Checking crossbeam-channel v0.5.4
[INFO] [stderr]    Compiling object v0.28.3
[INFO] [stderr]    Compiling rand v0.7.3
[INFO] [stderr]    Compiling quote v1.0.18
[INFO] [stderr]     Checking num_cpus v1.13.1
[INFO] [stderr]     Checking crossbeam-deque v0.8.1
[INFO] [stderr]    Compiling backtrace v0.3.65
[INFO] [stderr]     Checking addr2line v0.17.0
[INFO] [stderr]    Compiling synstructure v0.12.6
[INFO] [stderr]    Compiling failure v0.1.8
[INFO] [stderr]    Compiling chess v3.2.0
[INFO] [stderr]     Checking chess-proof v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 3m 13s
[INFO] running `Command { std: "docker" "inspect" "6ced6ccf622adec4a2381f3997fc93804fba2c86ae3f1fe2390a02d363f5ef3a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "6ced6ccf622adec4a2381f3997fc93804fba2c86ae3f1fe2390a02d363f5ef3a", kill_on_drop: false }`
[INFO] [stdout] 6ced6ccf622adec4a2381f3997fc93804fba2c86ae3f1fe2390a02d363f5ef3a