[INFO] cloning repository https://github.com/FrostSTeeL/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/FrostSTeeL/guessing_game" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FFrostSTeeL%2Fguessing_game", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FFrostSTeeL%2Fguessing_game'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 72f3d0587117f9fa6f06e384f7910b7f5d89ac5b
[INFO] testing FrostSTeeL/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%2FFrostSTeeL%2Fguessing_game" "/workspace/builds/worker-35/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-35/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/FrostSTeeL/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/FrostSTeeL/guessing_game
[INFO] finished tweaking git repo https://github.com/FrostSTeeL/guessing_game
[INFO] tweaked toml for git repo https://github.com/FrostSTeeL/guessing_game written to /workspace/builds/worker-35/source/Cargo.toml
[INFO] crate git repo https://github.com/FrostSTeeL/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-35/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-35/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] b6906cfe796ca094e5836e8a77f15a429761d55f10a813490b2a4c385e194a30
[INFO] running `Command { std: "docker" "start" "-a" "b6906cfe796ca094e5836e8a77f15a429761d55f10a813490b2a4c385e194a30", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "b6906cfe796ca094e5836e8a77f15a429761d55f10a813490b2a4c385e194a30", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "b6906cfe796ca094e5836e8a77f15a429761d55f10a813490b2a4c385e194a30", kill_on_drop: false }`
[INFO] [stdout] b6906cfe796ca094e5836e8a77f15a429761d55f10a813490b2a4c385e194a30
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-35/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-35/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] 495385336bc5710b5fcf301bfae7b5ab15913c5b2e922003bed36ca579247dd0
[INFO] running `Command { std: "docker" "start" "-a" "495385336bc5710b5fcf301bfae7b5ab15913c5b2e922003bed36ca579247dd0", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]    Compiling libc v0.2.86
[INFO] [stderr]    Compiling rand_core v0.4.2
[INFO] [stderr]    Compiling rand_core v0.3.1
[INFO] [stderr]    Compiling rand v0.5.6
[INFO] [stderr]    Compiling guessing_game v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 41.96s
[INFO] running `Command { std: "docker" "inspect" "495385336bc5710b5fcf301bfae7b5ab15913c5b2e922003bed36ca579247dd0", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "495385336bc5710b5fcf301bfae7b5ab15913c5b2e922003bed36ca579247dd0", kill_on_drop: false }`
[INFO] [stdout] 495385336bc5710b5fcf301bfae7b5ab15913c5b2e922003bed36ca579247dd0
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-35/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-35/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] e95df5dc9df8792f13d6b49459f27c5d7058a01f9be4c5d6fb6234e1582e391b
[INFO] running `Command { std: "docker" "start" "-a" "e95df5dc9df8792f13d6b49459f27c5d7058a01f9be4c5d6fb6234e1582e391b", kill_on_drop: false }`
[INFO] [stderr]    Compiling guessing_game v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.59s
[INFO] running `Command { std: "docker" "inspect" "e95df5dc9df8792f13d6b49459f27c5d7058a01f9be4c5d6fb6234e1582e391b", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "e95df5dc9df8792f13d6b49459f27c5d7058a01f9be4c5d6fb6234e1582e391b", kill_on_drop: false }`
[INFO] [stdout] e95df5dc9df8792f13d6b49459f27c5d7058a01f9be4c5d6fb6234e1582e391b
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-35/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-35/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] 6e8a8b66a6c68422c8c918cfe57ae3e8bae47c7a97ca999aa1298411fc76c9b2
[INFO] running `Command { std: "docker" "start" "-a" "6e8a8b66a6c68422c8c918cfe57ae3e8bae47c7a97ca999aa1298411fc76c9b2", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 5.50s
[INFO] [stderr]      Running unittests (/opt/rustwide/target/debug/deps/guessing_game-350b6a67bab48470)
[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" "6e8a8b66a6c68422c8c918cfe57ae3e8bae47c7a97ca999aa1298411fc76c9b2", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "6e8a8b66a6c68422c8c918cfe57ae3e8bae47c7a97ca999aa1298411fc76c9b2", kill_on_drop: false }`
[INFO] [stdout] 6e8a8b66a6c68422c8c918cfe57ae3e8bae47c7a97ca999aa1298411fc76c9b2