[INFO] cloning repository https://github.com/NikhilArroju/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/NikhilArroju/guessing_game" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FNikhilArroju%2Fguessing_game", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FNikhilArroju%2Fguessing_game'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 485955a1fc2a8cf5df37322e3e3293309984b075
[INFO] testing NikhilArroju/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%2FNikhilArroju%2Fguessing_game" "/workspace/builds/worker-71/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-71/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/NikhilArroju/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/NikhilArroju/guessing_game
[INFO] finished tweaking git repo https://github.com/NikhilArroju/guessing_game
[INFO] tweaked toml for git repo https://github.com/NikhilArroju/guessing_game written to /workspace/builds/worker-71/source/Cargo.toml
[INFO] crate git repo https://github.com/NikhilArroju/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] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-71/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-71/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] d8b7de898f7b48bdaa2eccc992ab87c633e6e67d8bbaf5dce6181c3720355b30
[INFO] running `Command { std: "docker" "start" "-a" "d8b7de898f7b48bdaa2eccc992ab87c633e6e67d8bbaf5dce6181c3720355b30", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "d8b7de898f7b48bdaa2eccc992ab87c633e6e67d8bbaf5dce6181c3720355b30", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "d8b7de898f7b48bdaa2eccc992ab87c633e6e67d8bbaf5dce6181c3720355b30", kill_on_drop: false }`
[INFO] [stdout] d8b7de898f7b48bdaa2eccc992ab87c633e6e67d8bbaf5dce6181c3720355b30
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-71/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-71/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] 96a7f6ee92b3ebd3cde1da475ffd93f5b0b1ee2c9e99c02be7808de06f9a2fe1
[INFO] running `Command { std: "docker" "start" "-a" "96a7f6ee92b3ebd3cde1da475ffd93f5b0b1ee2c9e99c02be7808de06f9a2fe1", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]    Compiling libc v0.2.69
[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 2m 24s
[INFO] running `Command { std: "docker" "inspect" "96a7f6ee92b3ebd3cde1da475ffd93f5b0b1ee2c9e99c02be7808de06f9a2fe1", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "96a7f6ee92b3ebd3cde1da475ffd93f5b0b1ee2c9e99c02be7808de06f9a2fe1", kill_on_drop: false }`
[INFO] [stdout] 96a7f6ee92b3ebd3cde1da475ffd93f5b0b1ee2c9e99c02be7808de06f9a2fe1
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-71/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-71/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] 7427b15b5797a2b8768fbb7660ca6abd3d9d81a49516cac8872ad5d9bbe064c3
[INFO] running `Command { std: "docker" "start" "-a" "7427b15b5797a2b8768fbb7660ca6abd3d9d81a49516cac8872ad5d9bbe064c3", kill_on_drop: false }`
[INFO] [stderr]    Compiling guessing_game v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.49s
[INFO] running `Command { std: "docker" "inspect" "7427b15b5797a2b8768fbb7660ca6abd3d9d81a49516cac8872ad5d9bbe064c3", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "7427b15b5797a2b8768fbb7660ca6abd3d9d81a49516cac8872ad5d9bbe064c3", kill_on_drop: false }`
[INFO] [stdout] 7427b15b5797a2b8768fbb7660ca6abd3d9d81a49516cac8872ad5d9bbe064c3
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-71/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-71/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] 661cf69bc44df421377692c8dcd9587d7a1217ac90dc78d9dbdffd155cea44c9
[INFO] running `Command { std: "docker" "start" "-a" "661cf69bc44df421377692c8dcd9587d7a1217ac90dc78d9dbdffd155cea44c9", kill_on_drop: false }`
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.02s
[INFO] [stdout] 
[INFO] [stderr]      Running unittests (/opt/rustwide/target/debug/deps/guessing_game-08539e47064529e6)
[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" "661cf69bc44df421377692c8dcd9587d7a1217ac90dc78d9dbdffd155cea44c9", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "661cf69bc44df421377692c8dcd9587d7a1217ac90dc78d9dbdffd155cea44c9", kill_on_drop: false }`
[INFO] [stdout] 661cf69bc44df421377692c8dcd9587d7a1217ac90dc78d9dbdffd155cea44c9