[INFO] fetching crate arbor 0.1.0...
[INFO] testing arbor-0.1.0 against 1.55.0 for beta-1.56-1
[INFO] extracting crate arbor 0.1.0 into /workspace/builds/worker-15/source
[INFO] validating manifest of crates.io crate arbor 0.1.0 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 arbor 0.1.0
[INFO] finished tweaking crates.io crate arbor 0.1.0
[INFO] tweaked toml for crates.io crate arbor 0.1.0 written to /workspace/builds/worker-15/source/Cargo.toml
[INFO] crate crates.io crate arbor 0.1.0 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-15/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-15/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] 20ee0964f10fc0ebd3caa8b80669b33f44c5dd6952be0211a679a0f9c44c3105
[INFO] running `Command { std: "docker" "start" "-a" "20ee0964f10fc0ebd3caa8b80669b33f44c5dd6952be0211a679a0f9c44c3105", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "20ee0964f10fc0ebd3caa8b80669b33f44c5dd6952be0211a679a0f9c44c3105", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "20ee0964f10fc0ebd3caa8b80669b33f44c5dd6952be0211a679a0f9c44c3105", kill_on_drop: false }`
[INFO] [stdout] 20ee0964f10fc0ebd3caa8b80669b33f44c5dd6952be0211a679a0f9c44c3105
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-15/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-15/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] 213da3b02caa7823be99b589ba2f30c060e0587e69a33e7425da593f250ffbd1
[INFO] running `Command { std: "docker" "start" "-a" "213da3b02caa7823be99b589ba2f30c060e0587e69a33e7425da593f250ffbd1", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.88
[INFO] [stderr]    Compiling getrandom v0.2.2
[INFO] [stderr]    Compiling syn v1.0.64
[INFO] [stderr]    Compiling const_fn v0.4.5
[INFO] [stderr]    Compiling standback v0.2.15
[INFO] [stderr]    Compiling time v0.2.25
[INFO] [stderr]    Compiling quote v1.0.9
[INFO] [stderr]    Compiling rand_core v0.6.2
[INFO] [stderr]    Compiling rand_chacha v0.3.0
[INFO] [stderr]    Compiling rand_xorshift v0.3.0
[INFO] [stderr]    Compiling rand v0.8.3
[INFO] [stderr]    Compiling time-macros-impl v0.1.1
[INFO] [stderr]    Compiling time-macros v0.1.1
[INFO] [stderr]    Compiling arbor v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 15.64s
[INFO] running `Command { std: "docker" "inspect" "213da3b02caa7823be99b589ba2f30c060e0587e69a33e7425da593f250ffbd1", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "213da3b02caa7823be99b589ba2f30c060e0587e69a33e7425da593f250ffbd1", kill_on_drop: false }`
[INFO] [stdout] 213da3b02caa7823be99b589ba2f30c060e0587e69a33e7425da593f250ffbd1
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-15/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-15/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] f8a374e9150e767960d2f71d90275b1f94657c8a8372370aa7c662268d0edd6a
[INFO] running `Command { std: "docker" "start" "-a" "f8a374e9150e767960d2f71d90275b1f94657c8a8372370aa7c662268d0edd6a", kill_on_drop: false }`
[INFO] [stderr]    Compiling arbor v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.96s
[INFO] running `Command { std: "docker" "inspect" "f8a374e9150e767960d2f71d90275b1f94657c8a8372370aa7c662268d0edd6a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "f8a374e9150e767960d2f71d90275b1f94657c8a8372370aa7c662268d0edd6a", kill_on_drop: false }`
[INFO] [stdout] f8a374e9150e767960d2f71d90275b1f94657c8a8372370aa7c662268d0edd6a
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-15/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-15/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] cf2c66cf4ec8376aec21568f2ccd7b4c0cab9a995bc651a05d237f43ab430552
[INFO] running `Command { std: "docker" "start" "-a" "cf2c66cf4ec8376aec21568f2ccd7b4c0cab9a995bc651a05d237f43ab430552", kill_on_drop: false }`
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.02s
[INFO] [stderr]      Running unittests (/opt/rustwide/target/debug/deps/arbor-d6078acf8d48ae64)
[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] [stderr]      Running unittests (/opt/rustwide/target/debug/deps/connect4-2c23f3807922f411)
[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] [stderr]      Running unittests (/opt/rustwide/target/debug/deps/mancala-29ff1cf719600f07)
[INFO] [stdout] 
[INFO] [stdout] running 6 tests
[INFO] [stdout] test test::mancala_free_move_1 ... ok
[INFO] [stdout] test test::mancala_left_capture ... ok
[INFO] [stdout] test test::mancala_free_move_2 ... ok
[INFO] [stdout] test test::mancala_right_capture ... ok
[INFO] [stdout] test test::mancala_best_move_free_turn ... ok
[INFO] [stdout] test test::mancala_best_move_split ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 6 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 1.00s
[INFO] [stdout] 
[INFO] [stderr]      Running unittests (/opt/rustwide/target/debug/deps/reversi-33c83e6c8c0e8759)
[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] [stderr]      Running unittests (/opt/rustwide/target/debug/deps/tictactoe-165f1d2330b60031)
[INFO] [stdout] 
[INFO] [stdout] running 4 tests
[INFO] [stdout] test test::tictactoe_best_even ... ok
[INFO] [stdout] test test::tictactoe_best_even2 ... ok
[INFO] [stdout] test test::tictactoe_best_obvious ... ok
[INFO] [stdout] test test::tictactoe_best_split ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 4 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 1.00s
[INFO] [stdout] 
[INFO] [stderr]    Doc-tests arbor
[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" "cf2c66cf4ec8376aec21568f2ccd7b4c0cab9a995bc651a05d237f43ab430552", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "cf2c66cf4ec8376aec21568f2ccd7b4c0cab9a995bc651a05d237f43ab430552", kill_on_drop: false }`
[INFO] [stdout] cf2c66cf4ec8376aec21568f2ccd7b4c0cab9a995bc651a05d237f43ab430552