[INFO] cloning repository https://github.com/baizetianxia/baizetianxia-polkadot_rust_class03_homewor
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/baizetianxia/baizetianxia-polkadot_rust_class03_homewor" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fbaizetianxia%2Fbaizetianxia-polkadot_rust_class03_homewor", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fbaizetianxia%2Fbaizetianxia-polkadot_rust_class03_homewor'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 4c20ee700adfcc20a1e3a7f425f630d7f56901a8
[INFO] testing baizetianxia/baizetianxia-polkadot_rust_class03_homewor against 1.55.0 for beta-1.56-1
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fbaizetianxia%2Fbaizetianxia-polkadot_rust_class03_homewor" "/workspace/builds/worker-1/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-1/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/baizetianxia/baizetianxia-polkadot_rust_class03_homewor 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/baizetianxia/baizetianxia-polkadot_rust_class03_homewor
[INFO] finished tweaking git repo https://github.com/baizetianxia/baizetianxia-polkadot_rust_class03_homewor
[INFO] tweaked toml for git repo https://github.com/baizetianxia/baizetianxia-polkadot_rust_class03_homewor written to /workspace/builds/worker-1/source/Cargo.toml
[INFO] crate git repo https://github.com/baizetianxia/baizetianxia-polkadot_rust_class03_homewor 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-1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1/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] aee944e3706eee4c449ddd2522d2c441d6339e54d887fde2f8c58fa771fa08a6
[INFO] running `Command { std: "docker" "start" "-a" "aee944e3706eee4c449ddd2522d2c441d6339e54d887fde2f8c58fa771fa08a6", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "aee944e3706eee4c449ddd2522d2c441d6339e54d887fde2f8c58fa771fa08a6", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "aee944e3706eee4c449ddd2522d2c441d6339e54d887fde2f8c58fa771fa08a6", kill_on_drop: false }`
[INFO] [stdout] aee944e3706eee4c449ddd2522d2c441d6339e54d887fde2f8c58fa771fa08a6
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1/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] 9ccb5f0630d2f9cc827dc8e023ae5156fc044e19be09580a9f387aec064969af
[INFO] running `Command { std: "docker" "start" "-a" "9ccb5f0630d2f9cc827dc8e023ae5156fc044e19be09580a9f387aec064969af", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]    Compiling tcp_server_client v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 1.54s
[INFO] running `Command { std: "docker" "inspect" "9ccb5f0630d2f9cc827dc8e023ae5156fc044e19be09580a9f387aec064969af", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "9ccb5f0630d2f9cc827dc8e023ae5156fc044e19be09580a9f387aec064969af", kill_on_drop: false }`
[INFO] [stdout] 9ccb5f0630d2f9cc827dc8e023ae5156fc044e19be09580a9f387aec064969af
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1/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] 6542efdc00f32483df77b18fc44395c48aeeb17c3c5e986a7b5140f837760089
[INFO] running `Command { std: "docker" "start" "-a" "6542efdc00f32483df77b18fc44395c48aeeb17c3c5e986a7b5140f837760089", kill_on_drop: false }`
[INFO] [stderr]    Compiling tcp_server_client v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.58s
[INFO] running `Command { std: "docker" "inspect" "6542efdc00f32483df77b18fc44395c48aeeb17c3c5e986a7b5140f837760089", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "6542efdc00f32483df77b18fc44395c48aeeb17c3c5e986a7b5140f837760089", kill_on_drop: false }`
[INFO] [stdout] 6542efdc00f32483df77b18fc44395c48aeeb17c3c5e986a7b5140f837760089
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1/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] 9bb27f7d95f182e9ed526750d232541c93b69064d44ea5d0212da90f8f115e85
[INFO] running `Command { std: "docker" "start" "-a" "9bb27f7d95f182e9ed526750d232541c93b69064d44ea5d0212da90f8f115e85", 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 0.27s
[INFO] [stdout] running 0 tests
[INFO] [stderr]      Running unittests (/opt/rustwide/target/debug/deps/tcp_server_client-d99ffff9966f6a67)
[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" "9bb27f7d95f182e9ed526750d232541c93b69064d44ea5d0212da90f8f115e85", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "9bb27f7d95f182e9ed526750d232541c93b69064d44ea5d0212da90f8f115e85", kill_on_drop: false }`
[INFO] [stdout] 9bb27f7d95f182e9ed526750d232541c93b69064d44ea5d0212da90f8f115e85