[INFO] fetching crate yet_another_guessing_game 0.1.0...
[INFO] testing yet_another_guessing_game-0.1.0 against 1.55.0 for beta-1.56-1
[INFO] extracting crate yet_another_guessing_game 0.1.0 into /workspace/builds/worker-5/source
[INFO] validating manifest of crates.io crate yet_another_guessing_game 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 yet_another_guessing_game 0.1.0
[INFO] finished tweaking crates.io crate yet_another_guessing_game 0.1.0
[INFO] tweaked toml for crates.io crate yet_another_guessing_game 0.1.0 written to /workspace/builds/worker-5/source/Cargo.toml
[INFO] crate crates.io crate yet_another_guessing_game 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-5/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5/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] 58d29450fa7bb464b38b671ae0a44a8fab9d826be3fb6477c2d80fb0dbdc472c
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] running `Command { std: "docker" "start" "-a" "58d29450fa7bb464b38b671ae0a44a8fab9d826be3fb6477c2d80fb0dbdc472c", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "58d29450fa7bb464b38b671ae0a44a8fab9d826be3fb6477c2d80fb0dbdc472c", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "58d29450fa7bb464b38b671ae0a44a8fab9d826be3fb6477c2d80fb0dbdc472c", kill_on_drop: false }`
[INFO] [stdout] 58d29450fa7bb464b38b671ae0a44a8fab9d826be3fb6477c2d80fb0dbdc472c
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5/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] 76b329fcd1dc52a894080329af9dca0ac58fd2f30c08b334c7c7a8d8e0317ffe
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] running `Command { std: "docker" "start" "-a" "76b329fcd1dc52a894080329af9dca0ac58fd2f30c08b334c7c7a8d8e0317ffe", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.97
[INFO] [stderr]    Compiling getrandom v0.2.3
[INFO] [stderr]    Compiling rand_core v0.6.3
[INFO] [stderr]    Compiling rand_chacha v0.3.1
[INFO] [stderr]    Compiling rand v0.8.4
[INFO] [stderr]    Compiling yet_another_guessing_game v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 5.51s
[INFO] running `Command { std: "docker" "inspect" "76b329fcd1dc52a894080329af9dca0ac58fd2f30c08b334c7c7a8d8e0317ffe", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "76b329fcd1dc52a894080329af9dca0ac58fd2f30c08b334c7c7a8d8e0317ffe", kill_on_drop: false }`
[INFO] [stdout] 76b329fcd1dc52a894080329af9dca0ac58fd2f30c08b334c7c7a8d8e0317ffe
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5/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] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] [stdout] aa0dee21eaeaf8c8d88244173fe93082cd728078ebf5a9f15ece11f0d66fea1a
[INFO] running `Command { std: "docker" "start" "-a" "aa0dee21eaeaf8c8d88244173fe93082cd728078ebf5a9f15ece11f0d66fea1a", kill_on_drop: false }`
[INFO] [stderr]    Compiling yet_another_guessing_game v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.47s
[INFO] running `Command { std: "docker" "inspect" "aa0dee21eaeaf8c8d88244173fe93082cd728078ebf5a9f15ece11f0d66fea1a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "aa0dee21eaeaf8c8d88244173fe93082cd728078ebf5a9f15ece11f0d66fea1a", kill_on_drop: false }`
[INFO] [stdout] aa0dee21eaeaf8c8d88244173fe93082cd728078ebf5a9f15ece11f0d66fea1a
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5/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] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] [stdout] 187146d2c8e2dc13a7e072f4c696a4513bf3e7050195695f9a8082acf6b29510
[INFO] running `Command { std: "docker" "start" "-a" "187146d2c8e2dc13a7e072f4c696a4513bf3e7050195695f9a8082acf6b29510", kill_on_drop: false }`
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.01s
[INFO] [stderr]      Running unittests (/opt/rustwide/target/debug/deps/yet_another_guessing_game-a6d8d4bdd07cee6c)
[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" "187146d2c8e2dc13a7e072f4c696a4513bf3e7050195695f9a8082acf6b29510", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "187146d2c8e2dc13a7e072f4c696a4513bf3e7050195695f9a8082acf6b29510", kill_on_drop: false }`
[INFO] [stdout] 187146d2c8e2dc13a7e072f4c696a4513bf3e7050195695f9a8082acf6b29510