[INFO] fetching crate tabuleto 0.0.0...
[INFO] testing tabuleto-0.0.0 against 1.55.0 for beta-1.56-1
[INFO] extracting crate tabuleto 0.0.0 into /workspace/builds/worker-6/source
[INFO] validating manifest of crates.io crate tabuleto 0.0.0 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 crates.io crate tabuleto 0.0.0
[INFO] finished tweaking crates.io crate tabuleto 0.0.0
[INFO] tweaked toml for crates.io crate tabuleto 0.0.0 written to /workspace/builds/worker-6/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.55.0" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[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-6/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/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] b0af976190aa976eb48ea7b5484a85b5ccff319f6adef841ddccae077acc91c8
[INFO] running `Command { std: "docker" "start" "-a" "b0af976190aa976eb48ea7b5484a85b5ccff319f6adef841ddccae077acc91c8", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "b0af976190aa976eb48ea7b5484a85b5ccff319f6adef841ddccae077acc91c8", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "b0af976190aa976eb48ea7b5484a85b5ccff319f6adef841ddccae077acc91c8", kill_on_drop: false }`
[INFO] [stdout] b0af976190aa976eb48ea7b5484a85b5ccff319f6adef841ddccae077acc91c8
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/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] 8bba624bfb1433fcc47c4c9136e56a74405d3913f1afcc6b93828972f2f65a94
[INFO] running `Command { std: "docker" "start" "-a" "8bba624bfb1433fcc47c4c9136e56a74405d3913f1afcc6b93828972f2f65a94", kill_on_drop: false }`
[INFO] [stderr]    Compiling tabuleto v0.0.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.18s
[INFO] running `Command { std: "docker" "inspect" "8bba624bfb1433fcc47c4c9136e56a74405d3913f1afcc6b93828972f2f65a94", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "8bba624bfb1433fcc47c4c9136e56a74405d3913f1afcc6b93828972f2f65a94", kill_on_drop: false }`
[INFO] [stdout] 8bba624bfb1433fcc47c4c9136e56a74405d3913f1afcc6b93828972f2f65a94
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/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" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 2904e74b9b5d8b6012cb2aae8d5e65844de25110c88fe27d092d31719c77908a
[INFO] running `Command { std: "docker" "start" "-a" "2904e74b9b5d8b6012cb2aae8d5e65844de25110c88fe27d092d31719c77908a", kill_on_drop: false }`
[INFO] [stderr]    Compiling tabuleto v0.0.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.42s
[INFO] running `Command { std: "docker" "inspect" "2904e74b9b5d8b6012cb2aae8d5e65844de25110c88fe27d092d31719c77908a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "2904e74b9b5d8b6012cb2aae8d5e65844de25110c88fe27d092d31719c77908a", kill_on_drop: false }`
[INFO] [stdout] 2904e74b9b5d8b6012cb2aae8d5e65844de25110c88fe27d092d31719c77908a
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/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" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] 53af53254e4885f51dbbfbe5df70896542843c110f11602304bc14593ec19ecf
[INFO] running `Command { std: "docker" "start" "-a" "53af53254e4885f51dbbfbe5df70896542843c110f11602304bc14593ec19ecf", kill_on_drop: false }`
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.04s
[INFO] [stderr]      Running unittests (/opt/rustwide/target/debug/deps/tabuleto-7ed37630a529415c)
[INFO] [stdout] 
[INFO] [stderr]    Doc-tests tabuleto
[INFO] [stdout] running 0 tests
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 0 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.00s
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] running 0 tests
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 0 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.00s
[INFO] [stdout] 
[INFO] running `Command { std: "docker" "inspect" "53af53254e4885f51dbbfbe5df70896542843c110f11602304bc14593ec19ecf", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "53af53254e4885f51dbbfbe5df70896542843c110f11602304bc14593ec19ecf", kill_on_drop: false }`
[INFO] [stdout] 53af53254e4885f51dbbfbe5df70896542843c110f11602304bc14593ec19ecf