[INFO] cloning repository https://github.com/ArchDH/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/ArchDH/rust_practice" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FArchDH%2Frust_practice", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FArchDH%2Frust_practice'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] a3b6614a447bea5a0df781c125cb96380abb96e0
[INFO] testing ArchDH/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%2FArchDH%2Frust_practice" "/workspace/builds/worker-11/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-11/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/ArchDH/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/ArchDH/rust_practice
[INFO] finished tweaking git repo https://github.com/ArchDH/rust_practice
[INFO] tweaked toml for git repo https://github.com/ArchDH/rust_practice written to /workspace/builds/worker-11/source/Cargo.toml
[INFO] crate git repo https://github.com/ArchDH/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] [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-11/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-11/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] 60a1e0c724fbffd7218093f35304e6f72c8f80924ad92896b93947bf6571fc27
[INFO] running `Command { std: "docker" "start" "-a" "60a1e0c724fbffd7218093f35304e6f72c8f80924ad92896b93947bf6571fc27", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "60a1e0c724fbffd7218093f35304e6f72c8f80924ad92896b93947bf6571fc27", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "60a1e0c724fbffd7218093f35304e6f72c8f80924ad92896b93947bf6571fc27", kill_on_drop: false }`
[INFO] [stdout] 60a1e0c724fbffd7218093f35304e6f72c8f80924ad92896b93947bf6571fc27
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-11/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-11/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] fe838d04c8b8b05fcf201c97f61ba4bc2e94c6f8ee9bf60b4fd8aa9ba35967cd
[INFO] running `Command { std: "docker" "start" "-a" "fe838d04c8b8b05fcf201c97f61ba4bc2e94c6f8ee9bf60b4fd8aa9ba35967cd", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]    Compiling Rust_Practice v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 1.21s
[INFO] running `Command { std: "docker" "inspect" "fe838d04c8b8b05fcf201c97f61ba4bc2e94c6f8ee9bf60b4fd8aa9ba35967cd", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "fe838d04c8b8b05fcf201c97f61ba4bc2e94c6f8ee9bf60b4fd8aa9ba35967cd", kill_on_drop: false }`
[INFO] [stdout] fe838d04c8b8b05fcf201c97f61ba4bc2e94c6f8ee9bf60b4fd8aa9ba35967cd
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-11/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-11/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] d9ca6f656618c5d3b139922c9ab3a2c06cebcc5f1bbad3fce2cd22a407d2c143
[INFO] running `Command { std: "docker" "start" "-a" "d9ca6f656618c5d3b139922c9ab3a2c06cebcc5f1bbad3fce2cd22a407d2c143", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]    Compiling Rust_Practice v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 22.91s
[INFO] running `Command { std: "docker" "inspect" "d9ca6f656618c5d3b139922c9ab3a2c06cebcc5f1bbad3fce2cd22a407d2c143", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "d9ca6f656618c5d3b139922c9ab3a2c06cebcc5f1bbad3fce2cd22a407d2c143", kill_on_drop: false }`
[INFO] [stdout] d9ca6f656618c5d3b139922c9ab3a2c06cebcc5f1bbad3fce2cd22a407d2c143
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-11/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-11/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] ea60bc80e0d5e3aaf6dcb75bb1448cbe840f91932a12928d5f1c902f85c4438e
[INFO] running `Command { std: "docker" "start" "-a" "ea60bc80e0d5e3aaf6dcb75bb1448cbe840f91932a12928d5f1c902f85c4438e", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.14s
[INFO] [stderr]      Running unittests (/opt/rustwide/target/debug/deps/Rust_Practice-07930be3759cfcd9)
[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" "ea60bc80e0d5e3aaf6dcb75bb1448cbe840f91932a12928d5f1c902f85c4438e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "ea60bc80e0d5e3aaf6dcb75bb1448cbe840f91932a12928d5f1c902f85c4438e", kill_on_drop: false }`
[INFO] [stdout] ea60bc80e0d5e3aaf6dcb75bb1448cbe840f91932a12928d5f1c902f85c4438e