[INFO] cloning repository https://github.com/baptistecolin/rust_practice
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/baptistecolin/rust_practice" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fbaptistecolin%2Frust_practice", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fbaptistecolin%2Frust_practice'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 6039466c95ec892cc88a580760ad4e59fbdfef4b
[INFO] testing baptistecolin/rust_practice against 1.55.0 for beta-1.56-1
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fbaptistecolin%2Frust_practice" "/workspace/builds/worker-14/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-14/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/baptistecolin/rust_practice 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/baptistecolin/rust_practice
[INFO] finished tweaking git repo https://github.com/baptistecolin/rust_practice
[INFO] tweaked toml for git repo https://github.com/baptistecolin/rust_practice written to /workspace/builds/worker-14/source/Cargo.toml
[INFO] crate git repo https://github.com/baptistecolin/rust_practice 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-14/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-14/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] 460b83c3539eac5714f70d8a8a6167e7a81c2b2e02bd17831c33b54c9495e0b7
[INFO] running `Command { std: "docker" "start" "-a" "460b83c3539eac5714f70d8a8a6167e7a81c2b2e02bd17831c33b54c9495e0b7", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "460b83c3539eac5714f70d8a8a6167e7a81c2b2e02bd17831c33b54c9495e0b7", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "460b83c3539eac5714f70d8a8a6167e7a81c2b2e02bd17831c33b54c9495e0b7", kill_on_drop: false }`
[INFO] [stdout] 460b83c3539eac5714f70d8a8a6167e7a81c2b2e02bd17831c33b54c9495e0b7
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-14/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-14/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] 8be1c4dbc8790e94c3a85c700b8d192929fb25aef03ad45aa743d7d8980c781f
[INFO] running `Command { std: "docker" "start" "-a" "8be1c4dbc8790e94c3a85c700b8d192929fb25aef03ad45aa743d7d8980c781f", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.33
[INFO] [stderr]    Compiling rand v0.3.17
[INFO] [stderr]    Compiling guessing_game v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 2.92s
[INFO] running `Command { std: "docker" "inspect" "8be1c4dbc8790e94c3a85c700b8d192929fb25aef03ad45aa743d7d8980c781f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "8be1c4dbc8790e94c3a85c700b8d192929fb25aef03ad45aa743d7d8980c781f", kill_on_drop: false }`
[INFO] [stdout] 8be1c4dbc8790e94c3a85c700b8d192929fb25aef03ad45aa743d7d8980c781f
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-14/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-14/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] d23abf862d6aff16a8976f555249080c863ff5c72c42b2218d15d54b3ce49a50
[INFO] running `Command { std: "docker" "start" "-a" "d23abf862d6aff16a8976f555249080c863ff5c72c42b2218d15d54b3ce49a50", kill_on_drop: false }`
[INFO] [stderr]    Compiling guessing_game v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.71s
[INFO] running `Command { std: "docker" "inspect" "d23abf862d6aff16a8976f555249080c863ff5c72c42b2218d15d54b3ce49a50", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "d23abf862d6aff16a8976f555249080c863ff5c72c42b2218d15d54b3ce49a50", kill_on_drop: false }`
[INFO] [stdout] d23abf862d6aff16a8976f555249080c863ff5c72c42b2218d15d54b3ce49a50
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-14/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-14/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] 125a7faf2897bf7220664678eef0e628e6abdf53a9db60e56c5fff3c53df4996
[INFO] running `Command { std: "docker" "start" "-a" "125a7faf2897bf7220664678eef0e628e6abdf53a9db60e56c5fff3c53df4996", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stdout] 
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.15s
[INFO] [stdout] running 0 tests
[INFO] [stderr]      Running unittests (/opt/rustwide/target/debug/deps/guessing_game-f4283031c46aec6d)
[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" "125a7faf2897bf7220664678eef0e628e6abdf53a9db60e56c5fff3c53df4996", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "125a7faf2897bf7220664678eef0e628e6abdf53a9db60e56c5fff3c53df4996", kill_on_drop: false }`
[INFO] [stdout] 125a7faf2897bf7220664678eef0e628e6abdf53a9db60e56c5fff3c53df4996