[INFO] cloning repository https://github.com/8845musign/rust_learn_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/8845musign/rust_learn_guessing_game" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2F8845musign%2Frust_learn_guessing_game", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2F8845musign%2Frust_learn_guessing_game'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] e192cfde68c9d674a9c02fcb010cdee0013dc9b3
[INFO] testing 8845musign/rust_learn_guessing_game against beta-2021-09-08 for beta-1.56-1
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2F8845musign%2Frust_learn_guessing_game" "/workspace/builds/worker-87/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-87/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/8845musign/rust_learn_guessing_game on toolchain beta-2021-09-08
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2021-09-08" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/8845musign/rust_learn_guessing_game
[INFO] finished tweaking git repo https://github.com/8845musign/rust_learn_guessing_game
[INFO] tweaked toml for git repo https://github.com/8845musign/rust_learn_guessing_game written to /workspace/builds/worker-87/source/Cargo.toml
[INFO] crate git repo https://github.com/8845musign/rust_learn_guessing_game already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2021-09-08" "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-87/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-87/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" "+beta-2021-09-08" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] d8b9e727a03f23b7bd78c2609a03cf479ff158c6a1eddde187cce9a64eb0f4ed
[INFO] running `Command { std: "docker" "start" "-a" "d8b9e727a03f23b7bd78c2609a03cf479ff158c6a1eddde187cce9a64eb0f4ed", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "d8b9e727a03f23b7bd78c2609a03cf479ff158c6a1eddde187cce9a64eb0f4ed", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "d8b9e727a03f23b7bd78c2609a03cf479ff158c6a1eddde187cce9a64eb0f4ed", kill_on_drop: false }`
[INFO] [stdout] d8b9e727a03f23b7bd78c2609a03cf479ff158c6a1eddde187cce9a64eb0f4ed
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-87/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-87/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" "+beta-2021-09-08" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 0934bbd50dd4d2b18ed35b27fa25d74a02761be313dfb38e14468567aa44f67b
[INFO] running `Command { std: "docker" "start" "-a" "0934bbd50dd4d2b18ed35b27fa25d74a02761be313dfb38e14468567aa44f67b", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.23
[INFO] [stderr]    Compiling rand v0.3.15
[INFO] [stderr]    Compiling rust_learn_guessing_game v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 3.32s
[INFO] running `Command { std: "docker" "inspect" "0934bbd50dd4d2b18ed35b27fa25d74a02761be313dfb38e14468567aa44f67b", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "0934bbd50dd4d2b18ed35b27fa25d74a02761be313dfb38e14468567aa44f67b", kill_on_drop: false }`
[INFO] [stdout] 0934bbd50dd4d2b18ed35b27fa25d74a02761be313dfb38e14468567aa44f67b
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-87/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-87/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" "+beta-2021-09-08" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 50aaa3ffd72980d898699fd813021a38c40384a99df5863c2c33d6b2cd659035
[INFO] running `Command { std: "docker" "start" "-a" "50aaa3ffd72980d898699fd813021a38c40384a99df5863c2c33d6b2cd659035", kill_on_drop: false }`
[INFO] [stderr]    Compiling rust_learn_guessing_game v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.39s
[INFO] running `Command { std: "docker" "inspect" "50aaa3ffd72980d898699fd813021a38c40384a99df5863c2c33d6b2cd659035", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "50aaa3ffd72980d898699fd813021a38c40384a99df5863c2c33d6b2cd659035", kill_on_drop: false }`
[INFO] [stdout] 50aaa3ffd72980d898699fd813021a38c40384a99df5863c2c33d6b2cd659035
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-87/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-87/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" "+beta-2021-09-08" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] c369a6a2b20d0b817b8b69ce9d1625474b2f6d5e13933b40b1e9cd593098e8a7
[INFO] running `Command { std: "docker" "start" "-a" "c369a6a2b20d0b817b8b69ce9d1625474b2f6d5e13933b40b1e9cd593098e8a7", kill_on_drop: false }`
[INFO] [stdout] 
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.13s
[INFO] [stdout] running 0 tests
[INFO] [stderr]      Running unittests (/opt/rustwide/target/debug/deps/rust_learn_guessing_game-3a95869180ad3fde)
[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" "c369a6a2b20d0b817b8b69ce9d1625474b2f6d5e13933b40b1e9cd593098e8a7", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "c369a6a2b20d0b817b8b69ce9d1625474b2f6d5e13933b40b1e9cd593098e8a7", kill_on_drop: false }`
[INFO] [stdout] c369a6a2b20d0b817b8b69ce9d1625474b2f6d5e13933b40b1e9cd593098e8a7