[INFO] cloning repository https://github.com/walterlbh/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/walterlbh/guessing_game" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fwalterlbh%2Fguessing_game", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fwalterlbh%2Fguessing_game'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 7e5f716fdf285386f26389d7f951e96223625000
[INFO] testing walterlbh/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%2Fwalterlbh%2Fguessing_game" "/workspace/builds/worker-45/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-45/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/walterlbh/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/walterlbh/guessing_game
[INFO] finished tweaking git repo https://github.com/walterlbh/guessing_game
[INFO] tweaked toml for git repo https://github.com/walterlbh/guessing_game written to /workspace/builds/worker-45/source/Cargo.toml
[INFO] crate git repo https://github.com/walterlbh/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] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded libc v0.2.26
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-45/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-45/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] bfb7dd54db6c0c0346be22541436f1e86810cc3d83cdc9998d17ac584b24a039
[INFO] running `Command { std: "docker" "start" "-a" "bfb7dd54db6c0c0346be22541436f1e86810cc3d83cdc9998d17ac584b24a039", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "bfb7dd54db6c0c0346be22541436f1e86810cc3d83cdc9998d17ac584b24a039", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "bfb7dd54db6c0c0346be22541436f1e86810cc3d83cdc9998d17ac584b24a039", kill_on_drop: false }`
[INFO] [stdout] bfb7dd54db6c0c0346be22541436f1e86810cc3d83cdc9998d17ac584b24a039
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-45/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-45/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] 319ade5a0f3cab45afbde4efe221ce228a8521ae0a1a2045b80e59a9054908ec
[INFO] running `Command { std: "docker" "start" "-a" "319ade5a0f3cab45afbde4efe221ce228a8521ae0a1a2045b80e59a9054908ec", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]    Compiling libc v0.2.26
[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 14.02s
[INFO] running `Command { std: "docker" "inspect" "319ade5a0f3cab45afbde4efe221ce228a8521ae0a1a2045b80e59a9054908ec", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "319ade5a0f3cab45afbde4efe221ce228a8521ae0a1a2045b80e59a9054908ec", kill_on_drop: false }`
[INFO] [stdout] 319ade5a0f3cab45afbde4efe221ce228a8521ae0a1a2045b80e59a9054908ec
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-45/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-45/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] 41c6dd150449ef4a73ed4cff69d2cc4e82fd97930a66034e05c92e56162bee79
[INFO] running `Command { std: "docker" "start" "-a" "41c6dd150449ef4a73ed4cff69d2cc4e82fd97930a66034e05c92e56162bee79", kill_on_drop: false }`
[INFO] [stderr]    Compiling guessing_game v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.54s
[INFO] running `Command { std: "docker" "inspect" "41c6dd150449ef4a73ed4cff69d2cc4e82fd97930a66034e05c92e56162bee79", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "41c6dd150449ef4a73ed4cff69d2cc4e82fd97930a66034e05c92e56162bee79", kill_on_drop: false }`
[INFO] [stdout] 41c6dd150449ef4a73ed4cff69d2cc4e82fd97930a66034e05c92e56162bee79
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-45/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-45/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] 08208b8c3370c66c685689458b6c33a6b304fc9a3934ec74bddc9a00867b6a1c
[INFO] running `Command { std: "docker" "start" "-a" "08208b8c3370c66c685689458b6c33a6b304fc9a3934ec74bddc9a00867b6a1c", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 20.98s
[INFO] [stderr]      Running unittests (/opt/rustwide/target/debug/deps/guessing_game-5a0c0e142f9344bd)
[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" "08208b8c3370c66c685689458b6c33a6b304fc9a3934ec74bddc9a00867b6a1c", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "08208b8c3370c66c685689458b6c33a6b304fc9a3934ec74bddc9a00867b6a1c", kill_on_drop: false }`
[INFO] [stdout] 08208b8c3370c66c685689458b6c33a6b304fc9a3934ec74bddc9a00867b6a1c