[INFO] cloning repository https://github.com/bartkim0426/rust-random-num-guess
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/bartkim0426/rust-random-num-guess" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fbartkim0426%2Frust-random-num-guess", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fbartkim0426%2Frust-random-num-guess'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] da6ab0956d040e46c296bedf005d30d67460e538
[INFO] testing bartkim0426/rust-random-num-guess against 1.55.0 for beta-1.56-1
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fbartkim0426%2Frust-random-num-guess" "/workspace/builds/worker-4/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-4/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/bartkim0426/rust-random-num-guess 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/bartkim0426/rust-random-num-guess
[INFO] finished tweaking git repo https://github.com/bartkim0426/rust-random-num-guess
[INFO] tweaked toml for git repo https://github.com/bartkim0426/rust-random-num-guess written to /workspace/builds/worker-4/source/Cargo.toml
[INFO] crate git repo https://github.com/bartkim0426/rust-random-num-guess 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-4/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/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] d16d63a3da90284f4ed8c4cf11575f81153016bf726ad2d610b8bc7486700303
[INFO] running `Command { std: "docker" "start" "-a" "d16d63a3da90284f4ed8c4cf11575f81153016bf726ad2d610b8bc7486700303", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "d16d63a3da90284f4ed8c4cf11575f81153016bf726ad2d610b8bc7486700303", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "d16d63a3da90284f4ed8c4cf11575f81153016bf726ad2d610b8bc7486700303", kill_on_drop: false }`
[INFO] [stdout] d16d63a3da90284f4ed8c4cf11575f81153016bf726ad2d610b8bc7486700303
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/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] b0191e915aa7a14aed1d358269b3a7063d17ecb3260805355722d142555d4ae5
[INFO] running `Command { std: "docker" "start" "-a" "b0191e915aa7a14aed1d358269b3a7063d17ecb3260805355722d142555d4ae5", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]    Compiling libc v0.2.44
[INFO] [stderr]    Compiling rand v0.4.3
[INFO] [stderr]    Compiling guessing_game v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 3.55s
[INFO] running `Command { std: "docker" "inspect" "b0191e915aa7a14aed1d358269b3a7063d17ecb3260805355722d142555d4ae5", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "b0191e915aa7a14aed1d358269b3a7063d17ecb3260805355722d142555d4ae5", kill_on_drop: false }`
[INFO] [stdout] b0191e915aa7a14aed1d358269b3a7063d17ecb3260805355722d142555d4ae5
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/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] bef1be285a033c1531050e9513e1b66fb5df0c63112f45bebbf50c62a849ace3
[INFO] running `Command { std: "docker" "start" "-a" "bef1be285a033c1531050e9513e1b66fb5df0c63112f45bebbf50c62a849ace3", kill_on_drop: false }`
[INFO] [stderr]    Compiling guessing_game v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.82s
[INFO] running `Command { std: "docker" "inspect" "bef1be285a033c1531050e9513e1b66fb5df0c63112f45bebbf50c62a849ace3", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "bef1be285a033c1531050e9513e1b66fb5df0c63112f45bebbf50c62a849ace3", kill_on_drop: false }`
[INFO] [stdout] bef1be285a033c1531050e9513e1b66fb5df0c63112f45bebbf50c62a849ace3
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/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] 9b3a7169cf87f40757f31e1c0968f2e80a3ec1cb5bb1f235e49588a228ab34af
[INFO] running `Command { std: "docker" "start" "-a" "9b3a7169cf87f40757f31e1c0968f2e80a3ec1cb5bb1f235e49588a228ab34af", kill_on_drop: false }`
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.01s
[INFO] [stdout] 
[INFO] [stderr]      Running unittests (/opt/rustwide/target/debug/deps/guessing_game-9ea7465ceecbb7bf)
[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" "9b3a7169cf87f40757f31e1c0968f2e80a3ec1cb5bb1f235e49588a228ab34af", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "9b3a7169cf87f40757f31e1c0968f2e80a3ec1cb5bb1f235e49588a228ab34af", kill_on_drop: false }`
[INFO] [stdout] 9b3a7169cf87f40757f31e1c0968f2e80a3ec1cb5bb1f235e49588a228ab34af