[INFO] cloning repository https://github.com/adc17/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/adc17/rust_guessing_game" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fadc17%2Frust_guessing_game", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fadc17%2Frust_guessing_game'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] f3d5852c191c0a14bc2b73ea897549f3253a2380
[INFO] testing adc17/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%2Fadc17%2Frust_guessing_game" "/workspace/builds/worker-64/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-64/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/adc17/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/adc17/rust_guessing_game
[INFO] finished tweaking git repo https://github.com/adc17/rust_guessing_game
[INFO] tweaked toml for git repo https://github.com/adc17/rust_guessing_game written to /workspace/builds/worker-64/source/Cargo.toml
[INFO] crate git repo https://github.com/adc17/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-64/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-64/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] b23ffb0b1d2fff93083d8e31c44dce84951c6905344adc448e51f4911004d48e
[INFO] running `Command { std: "docker" "start" "-a" "b23ffb0b1d2fff93083d8e31c44dce84951c6905344adc448e51f4911004d48e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "b23ffb0b1d2fff93083d8e31c44dce84951c6905344adc448e51f4911004d48e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "b23ffb0b1d2fff93083d8e31c44dce84951c6905344adc448e51f4911004d48e", kill_on_drop: false }`
[INFO] [stdout] b23ffb0b1d2fff93083d8e31c44dce84951c6905344adc448e51f4911004d48e
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-64/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-64/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] 81633abe289f74141d835beffeb68a6caedc52db05a73ecbeb6c20d2b2b8f1b6
[INFO] running `Command { std: "docker" "start" "-a" "81633abe289f74141d835beffeb68a6caedc52db05a73ecbeb6c20d2b2b8f1b6", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]    Compiling libc v0.2.39
[INFO] [stderr]    Compiling rand v0.4.2
[INFO] [stderr]    Compiling rand v0.3.22
[INFO] [stderr]    Compiling guessing_game v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 35.27s
[INFO] running `Command { std: "docker" "inspect" "81633abe289f74141d835beffeb68a6caedc52db05a73ecbeb6c20d2b2b8f1b6", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "81633abe289f74141d835beffeb68a6caedc52db05a73ecbeb6c20d2b2b8f1b6", kill_on_drop: false }`
[INFO] [stdout] 81633abe289f74141d835beffeb68a6caedc52db05a73ecbeb6c20d2b2b8f1b6
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-64/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-64/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] 759bbf018df7db2c66d4a16ab8fc2409919e7e56e5c9c7f921799a1db1db59fd
[INFO] running `Command { std: "docker" "start" "-a" "759bbf018df7db2c66d4a16ab8fc2409919e7e56e5c9c7f921799a1db1db59fd", kill_on_drop: false }`
[INFO] [stderr]    Compiling guessing_game v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.50s
[INFO] running `Command { std: "docker" "inspect" "759bbf018df7db2c66d4a16ab8fc2409919e7e56e5c9c7f921799a1db1db59fd", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "759bbf018df7db2c66d4a16ab8fc2409919e7e56e5c9c7f921799a1db1db59fd", kill_on_drop: false }`
[INFO] [stdout] 759bbf018df7db2c66d4a16ab8fc2409919e7e56e5c9c7f921799a1db1db59fd
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-64/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-64/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] aaf341dcb60869e99dfdd475d1a97180b3c3751a158b97b542ef47ea564cb410
[INFO] running `Command { std: "docker" "start" "-a" "aaf341dcb60869e99dfdd475d1a97180b3c3751a158b97b542ef47ea564cb410", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 1.00s
[INFO] [stderr]      Running unittests (/opt/rustwide/target/debug/deps/guessing_game-04a3c5dc75bc1b22)
[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" "aaf341dcb60869e99dfdd475d1a97180b3c3751a158b97b542ef47ea564cb410", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "aaf341dcb60869e99dfdd475d1a97180b3c3751a158b97b542ef47ea564cb410", kill_on_drop: false }`
[INFO] [stdout] aaf341dcb60869e99dfdd475d1a97180b3c3751a158b97b542ef47ea564cb410