[INFO] cloning repository https://github.com/snowdaily/rust_tcp_server_demo
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/snowdaily/rust_tcp_server_demo" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fsnowdaily%2Frust_tcp_server_demo", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fsnowdaily%2Frust_tcp_server_demo'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 82f605b72603d6807caf56cb287bbcf0ded94007
[INFO] testing snowdaily/rust_tcp_server_demo against 1.55.0 for beta-1.56-1
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fsnowdaily%2Frust_tcp_server_demo" "/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/snowdaily/rust_tcp_server_demo 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/snowdaily/rust_tcp_server_demo
[INFO] finished tweaking git repo https://github.com/snowdaily/rust_tcp_server_demo
[INFO] tweaked toml for git repo https://github.com/snowdaily/rust_tcp_server_demo written to /workspace/builds/worker-11/source/Cargo.toml
[INFO] crate git repo https://github.com/snowdaily/rust_tcp_server_demo 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-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] 980636bb95c39138a7a92ae4ba1791fca6e96bf38b136cae4e7fac4a47d8d453
[INFO] running `Command { std: "docker" "start" "-a" "980636bb95c39138a7a92ae4ba1791fca6e96bf38b136cae4e7fac4a47d8d453", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "980636bb95c39138a7a92ae4ba1791fca6e96bf38b136cae4e7fac4a47d8d453", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "980636bb95c39138a7a92ae4ba1791fca6e96bf38b136cae4e7fac4a47d8d453", kill_on_drop: false }`
[INFO] [stdout] 980636bb95c39138a7a92ae4ba1791fca6e96bf38b136cae4e7fac4a47d8d453
[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] 0137650279a0204fe485fe93f39b76f57b16a4353871026ccc65e70d6c52580a
[INFO] running `Command { std: "docker" "start" "-a" "0137650279a0204fe485fe93f39b76f57b16a4353871026ccc65e70d6c52580a", kill_on_drop: false }`
[INFO] [stderr]    Compiling tcp_server_demo v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 1.10s
[INFO] running `Command { std: "docker" "inspect" "0137650279a0204fe485fe93f39b76f57b16a4353871026ccc65e70d6c52580a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "0137650279a0204fe485fe93f39b76f57b16a4353871026ccc65e70d6c52580a", kill_on_drop: false }`
[INFO] [stdout] 0137650279a0204fe485fe93f39b76f57b16a4353871026ccc65e70d6c52580a
[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] 72e6fd40d9305f5d0e39a60aeec83025ab8135d9dee3201257a4f0ef51d15e52
[INFO] running `Command { std: "docker" "start" "-a" "72e6fd40d9305f5d0e39a60aeec83025ab8135d9dee3201257a4f0ef51d15e52", kill_on_drop: false }`
[INFO] [stderr]    Compiling tcp_server_demo v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.55s
[INFO] running `Command { std: "docker" "inspect" "72e6fd40d9305f5d0e39a60aeec83025ab8135d9dee3201257a4f0ef51d15e52", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "72e6fd40d9305f5d0e39a60aeec83025ab8135d9dee3201257a4f0ef51d15e52", kill_on_drop: false }`
[INFO] [stdout] 72e6fd40d9305f5d0e39a60aeec83025ab8135d9dee3201257a4f0ef51d15e52
[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] 84cf92532e5324f32e9a07173eeac83aa5e8e715821ab4d5164dc9719c6d80f7
[INFO] running `Command { std: "docker" "start" "-a" "84cf92532e5324f32e9a07173eeac83aa5e8e715821ab4d5164dc9719c6d80f7", kill_on_drop: false }`
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.01s
[INFO] [stderr]      Running unittests (/opt/rustwide/target/debug/deps/tcp_server_demo-bf825669833b2e71)
[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" "84cf92532e5324f32e9a07173eeac83aa5e8e715821ab4d5164dc9719c6d80f7", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "84cf92532e5324f32e9a07173eeac83aa5e8e715821ab4d5164dc9719c6d80f7", kill_on_drop: false }`
[INFO] [stdout] 84cf92532e5324f32e9a07173eeac83aa5e8e715821ab4d5164dc9719c6d80f7