[INFO] cloning repository https://github.com/yipo/rust-book-project-chapter
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/yipo/rust-book-project-chapter" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fyipo%2Frust-book-project-chapter", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fyipo%2Frust-book-project-chapter'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] e5b67d884ac02c4f8dfa40653e260ce1f135488a
[INFO] testing yipo/rust-book-project-chapter against 1.55.0 for beta-1.56-1
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fyipo%2Frust-book-project-chapter" "/workspace/builds/worker-58/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-58/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/yipo/rust-book-project-chapter 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/yipo/rust-book-project-chapter
[INFO] finished tweaking git repo https://github.com/yipo/rust-book-project-chapter
[INFO] tweaked toml for git repo https://github.com/yipo/rust-book-project-chapter written to /workspace/builds/worker-58/source/Cargo.toml
[INFO] crate git repo https://github.com/yipo/rust-book-project-chapter 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-58/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-58/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] 56cb6fe84b20c267a7e8208f37823086b1cb54e569255a30d9e3534b351f8949
[INFO] running `Command { std: "docker" "start" "-a" "56cb6fe84b20c267a7e8208f37823086b1cb54e569255a30d9e3534b351f8949", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "56cb6fe84b20c267a7e8208f37823086b1cb54e569255a30d9e3534b351f8949", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "56cb6fe84b20c267a7e8208f37823086b1cb54e569255a30d9e3534b351f8949", kill_on_drop: false }`
[INFO] [stdout] 56cb6fe84b20c267a7e8208f37823086b1cb54e569255a30d9e3534b351f8949
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-58/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-58/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] 00940bdd46390ca9ab2225f34e50b18176de5b15bbde432e6c95d15b73a21377
[INFO] running `Command { std: "docker" "start" "-a" "00940bdd46390ca9ab2225f34e50b18176de5b15bbde432e6c95d15b73a21377", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]    Compiling libc v0.2.94
[INFO] [stderr]    Compiling getrandom v0.2.2
[INFO] [stderr]    Compiling rand_core v0.6.2
[INFO] [stderr]    Compiling rand_chacha v0.3.0
[INFO] [stderr]    Compiling rand v0.8.3
[INFO] [stderr]    Compiling guessing_game v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 26.30s
[INFO] running `Command { std: "docker" "inspect" "00940bdd46390ca9ab2225f34e50b18176de5b15bbde432e6c95d15b73a21377", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "00940bdd46390ca9ab2225f34e50b18176de5b15bbde432e6c95d15b73a21377", kill_on_drop: false }`
[INFO] [stdout] 00940bdd46390ca9ab2225f34e50b18176de5b15bbde432e6c95d15b73a21377
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-58/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-58/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] 6e9c01b6e5283fc03732e6f87ae51a11481f9b58ad6b15b0882c1845cd436153
[INFO] running `Command { std: "docker" "start" "-a" "6e9c01b6e5283fc03732e6f87ae51a11481f9b58ad6b15b0882c1845cd436153", 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" "6e9c01b6e5283fc03732e6f87ae51a11481f9b58ad6b15b0882c1845cd436153", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "6e9c01b6e5283fc03732e6f87ae51a11481f9b58ad6b15b0882c1845cd436153", kill_on_drop: false }`
[INFO] [stdout] 6e9c01b6e5283fc03732e6f87ae51a11481f9b58ad6b15b0882c1845cd436153
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-58/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-58/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] 6fc23cb9ea0a15f95fdac3d1306015192cb74c17ac595878a34d11c1c647c95b
[INFO] running `Command { std: "docker" "start" "-a" "6fc23cb9ea0a15f95fdac3d1306015192cb74c17ac595878a34d11c1c647c95b", kill_on_drop: false }`
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.02s
[INFO] [stderr]      Running unittests (/opt/rustwide/target/debug/deps/guessing_game-c1b3f221f072a264)
[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" "6fc23cb9ea0a15f95fdac3d1306015192cb74c17ac595878a34d11c1c647c95b", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "6fc23cb9ea0a15f95fdac3d1306015192cb74c17ac595878a34d11c1c647c95b", kill_on_drop: false }`
[INFO] [stdout] 6fc23cb9ea0a15f95fdac3d1306015192cb74c17ac595878a34d11c1c647c95b