[INFO] cloning repository https://github.com/LittleBigProgramming/RustGuessingGame
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/LittleBigProgramming/RustGuessingGame" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FLittleBigProgramming%2FRustGuessingGame", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FLittleBigProgramming%2FRustGuessingGame'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 92522163c53b85f31a012dc9200789c8667110ee
[INFO] testing LittleBigProgramming/RustGuessingGame against 1.55.0 for beta-1.56-1
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FLittleBigProgramming%2FRustGuessingGame" "/workspace/builds/worker-91/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-91/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/LittleBigProgramming/RustGuessingGame 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/LittleBigProgramming/RustGuessingGame
[INFO] finished tweaking git repo https://github.com/LittleBigProgramming/RustGuessingGame
[INFO] tweaked toml for git repo https://github.com/LittleBigProgramming/RustGuessingGame written to /workspace/builds/worker-91/source/Cargo.toml
[INFO] crate git repo https://github.com/LittleBigProgramming/RustGuessingGame 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] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-91/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-91/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] 8da1d8e848fee139413b13ea969ba301d87329bc43944a744d48cf905f8274b2
[INFO] running `Command { std: "docker" "start" "-a" "8da1d8e848fee139413b13ea969ba301d87329bc43944a744d48cf905f8274b2", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "8da1d8e848fee139413b13ea969ba301d87329bc43944a744d48cf905f8274b2", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "8da1d8e848fee139413b13ea969ba301d87329bc43944a744d48cf905f8274b2", kill_on_drop: false }`
[INFO] [stdout] 8da1d8e848fee139413b13ea969ba301d87329bc43944a744d48cf905f8274b2
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-91/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-91/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] 2c8d76ec9d89f392cc9cb74dd9829769c2219cdfad8900f8ad2e2513d133ea96
[INFO] running `Command { std: "docker" "start" "-a" "2c8d76ec9d89f392cc9cb74dd9829769c2219cdfad8900f8ad2e2513d133ea96", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]    Compiling libc v0.2.44
[INFO] [stderr]    Compiling rand v0.4.3
[INFO] [stderr]    Compiling rand v0.3.22
[INFO] [stderr]    Compiling guessing_game v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 1m 35s
[INFO] running `Command { std: "docker" "inspect" "2c8d76ec9d89f392cc9cb74dd9829769c2219cdfad8900f8ad2e2513d133ea96", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "2c8d76ec9d89f392cc9cb74dd9829769c2219cdfad8900f8ad2e2513d133ea96", kill_on_drop: false }`
[INFO] [stdout] 2c8d76ec9d89f392cc9cb74dd9829769c2219cdfad8900f8ad2e2513d133ea96
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-91/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-91/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] 26539d63e4eaf6f80f2c08a4f3705ad643bd7a3d3c05b0f7845d3d4a1cdd13bc
[INFO] running `Command { std: "docker" "start" "-a" "26539d63e4eaf6f80f2c08a4f3705ad643bd7a3d3c05b0f7845d3d4a1cdd13bc", kill_on_drop: false }`
[INFO] [stderr]    Compiling guessing_game v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.52s
[INFO] running `Command { std: "docker" "inspect" "26539d63e4eaf6f80f2c08a4f3705ad643bd7a3d3c05b0f7845d3d4a1cdd13bc", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "26539d63e4eaf6f80f2c08a4f3705ad643bd7a3d3c05b0f7845d3d4a1cdd13bc", kill_on_drop: false }`
[INFO] [stdout] 26539d63e4eaf6f80f2c08a4f3705ad643bd7a3d3c05b0f7845d3d4a1cdd13bc
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-91/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-91/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] 114827feeb1a177f2e067c6b96acad4069f334a7eb106a756003c9fc4cb27feb
[INFO] running `Command { std: "docker" "start" "-a" "114827feeb1a177f2e067c6b96acad4069f334a7eb106a756003c9fc4cb27feb", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.04s
[INFO] [stdout] 
[INFO] [stderr]      Running unittests (/opt/rustwide/target/debug/deps/guessing_game-58a933d8eb8497ef)
[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" "114827feeb1a177f2e067c6b96acad4069f334a7eb106a756003c9fc4cb27feb", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "114827feeb1a177f2e067c6b96acad4069f334a7eb106a756003c9fc4cb27feb", kill_on_drop: false }`
[INFO] [stdout] 114827feeb1a177f2e067c6b96acad4069f334a7eb106a756003c9fc4cb27feb