[INFO] cloning repository https://github.com/jdavidagudelo/rust-guessing-game
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/jdavidagudelo/rust-guessing-game" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fjdavidagudelo%2Frust-guessing-game", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fjdavidagudelo%2Frust-guessing-game'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 62791c2a5dbeec96b61d1565d20c086e0185c4db
[INFO] testing jdavidagudelo/rust-guessing-game against 1.55.0 for beta-1.56-1
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fjdavidagudelo%2Frust-guessing-game" "/workspace/builds/worker-28/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-28/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/jdavidagudelo/rust-guessing-game 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/jdavidagudelo/rust-guessing-game
[INFO] finished tweaking git repo https://github.com/jdavidagudelo/rust-guessing-game
[INFO] tweaked toml for git repo https://github.com/jdavidagudelo/rust-guessing-game written to /workspace/builds/worker-28/source/Cargo.toml
[INFO] crate git repo https://github.com/jdavidagudelo/rust-guessing-game 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] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-28/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-28/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] 95ac872a0c52948b0bfa4318fa2cfef322144cd0f6279eb51c12966e78c890d4
[INFO] running `Command { std: "docker" "start" "-a" "95ac872a0c52948b0bfa4318fa2cfef322144cd0f6279eb51c12966e78c890d4", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "95ac872a0c52948b0bfa4318fa2cfef322144cd0f6279eb51c12966e78c890d4", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "95ac872a0c52948b0bfa4318fa2cfef322144cd0f6279eb51c12966e78c890d4", kill_on_drop: false }`
[INFO] [stdout] 95ac872a0c52948b0bfa4318fa2cfef322144cd0f6279eb51c12966e78c890d4
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-28/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-28/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] 865f2168fe8c7bb80142357df467e5fb83395859533e8f88fd43c0980190d739
[INFO] running `Command { std: "docker" "start" "-a" "865f2168fe8c7bb80142357df467e5fb83395859533e8f88fd43c0980190d739", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]    Compiling libc v0.2.20
[INFO] [stderr]    Compiling rand v0.3.15
[INFO] [stderr]    Compiling guessing_game v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 3.55s
[INFO] running `Command { std: "docker" "inspect" "865f2168fe8c7bb80142357df467e5fb83395859533e8f88fd43c0980190d739", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "865f2168fe8c7bb80142357df467e5fb83395859533e8f88fd43c0980190d739", kill_on_drop: false }`
[INFO] [stdout] 865f2168fe8c7bb80142357df467e5fb83395859533e8f88fd43c0980190d739
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-28/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-28/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] 4031f3603f4dc95d88f2b8b5741139add3bf6333ac346059413cc4f873135308
[INFO] running `Command { std: "docker" "start" "-a" "4031f3603f4dc95d88f2b8b5741139add3bf6333ac346059413cc4f873135308", kill_on_drop: false }`
[INFO] [stderr]    Compiling guessing_game v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.73s
[INFO] running `Command { std: "docker" "inspect" "4031f3603f4dc95d88f2b8b5741139add3bf6333ac346059413cc4f873135308", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "4031f3603f4dc95d88f2b8b5741139add3bf6333ac346059413cc4f873135308", kill_on_drop: false }`
[INFO] [stdout] 4031f3603f4dc95d88f2b8b5741139add3bf6333ac346059413cc4f873135308
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-28/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-28/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] fb9195293a1afd861947c61819b8297b9e9df8afe5403fe18ce61f2a28673028
[INFO] running `Command { std: "docker" "start" "-a" "fb9195293a1afd861947c61819b8297b9e9df8afe5403fe18ce61f2a28673028", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 14.48s
[INFO] [stderr]      Running unittests (/opt/rustwide/target/debug/deps/guessing_game-5440fc6eaf1b1208)
[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" "fb9195293a1afd861947c61819b8297b9e9df8afe5403fe18ce61f2a28673028", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "fb9195293a1afd861947c61819b8297b9e9df8afe5403fe18ce61f2a28673028", kill_on_drop: false }`
[INFO] [stdout] fb9195293a1afd861947c61819b8297b9e9df8afe5403fe18ce61f2a28673028