[INFO] cloning repository https://github.com/chennyouneng2020/rust_tcp_server
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/chennyouneng2020/rust_tcp_server" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fchennyouneng2020%2Frust_tcp_server", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fchennyouneng2020%2Frust_tcp_server'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 82d3bda37ce4d59c22228f1a129c0b6dab4643f7
[INFO] testing chennyouneng2020/rust_tcp_server against beta-2022-02-22 for beta-1.60-1
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fchennyouneng2020%2Frust_tcp_server" "/workspace/builds/worker-27/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-27/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/chennyouneng2020/rust_tcp_server on toolchain beta-2022-02-22
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2022-02-22" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/chennyouneng2020/rust_tcp_server
[INFO] finished tweaking git repo https://github.com/chennyouneng2020/rust_tcp_server
[INFO] tweaked toml for git repo https://github.com/chennyouneng2020/rust_tcp_server written to /workspace/builds/worker-27/source/Cargo.toml
[INFO] crate git repo https://github.com/chennyouneng2020/rust_tcp_server already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2022-02-22" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-27/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-27/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@sha256:0cd99ca24d8e8c98e67c542213511d985b8778b5bdcbb160e038429496686047" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2022-02-22" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 0538cca45ea4fd2d89cb69be5f6e6e8e0b18af9bb781a448a86ab6af32529bcf
[INFO] running `Command { std: "docker" "start" "-a" "0538cca45ea4fd2d89cb69be5f6e6e8e0b18af9bb781a448a86ab6af32529bcf", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "0538cca45ea4fd2d89cb69be5f6e6e8e0b18af9bb781a448a86ab6af32529bcf", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "0538cca45ea4fd2d89cb69be5f6e6e8e0b18af9bb781a448a86ab6af32529bcf", kill_on_drop: false }`
[INFO] [stdout] 0538cca45ea4fd2d89cb69be5f6e6e8e0b18af9bb781a448a86ab6af32529bcf
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-27/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-27/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@sha256:0cd99ca24d8e8c98e67c542213511d985b8778b5bdcbb160e038429496686047" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2022-02-22" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 4bcc94e0bb9bb83b8ec4d71252f65017f119928d705bd76cea0298bbd1f536ab
[INFO] running `Command { std: "docker" "start" "-a" "4bcc94e0bb9bb83b8ec4d71252f65017f119928d705bd76cea0298bbd1f536ab", kill_on_drop: false }`
[INFO] [stderr]    Compiling tcp_server v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.32s
[INFO] running `Command { std: "docker" "inspect" "4bcc94e0bb9bb83b8ec4d71252f65017f119928d705bd76cea0298bbd1f536ab", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "4bcc94e0bb9bb83b8ec4d71252f65017f119928d705bd76cea0298bbd1f536ab", kill_on_drop: false }`
[INFO] [stdout] 4bcc94e0bb9bb83b8ec4d71252f65017f119928d705bd76cea0298bbd1f536ab
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-27/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-27/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@sha256:0cd99ca24d8e8c98e67c542213511d985b8778b5bdcbb160e038429496686047" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2022-02-22" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] b6ce8075e9cda99971435591e28a95841ef05bc865e98dbb90a6fa0af59055d9
[INFO] running `Command { std: "docker" "start" "-a" "b6ce8075e9cda99971435591e28a95841ef05bc865e98dbb90a6fa0af59055d9", kill_on_drop: false }`
[INFO] [stderr]    Compiling tcp_server v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.27s
[INFO] running `Command { std: "docker" "inspect" "b6ce8075e9cda99971435591e28a95841ef05bc865e98dbb90a6fa0af59055d9", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "b6ce8075e9cda99971435591e28a95841ef05bc865e98dbb90a6fa0af59055d9", kill_on_drop: false }`
[INFO] [stdout] b6ce8075e9cda99971435591e28a95841ef05bc865e98dbb90a6fa0af59055d9
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-27/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-27/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@sha256:0cd99ca24d8e8c98e67c542213511d985b8778b5bdcbb160e038429496686047" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2022-02-22" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] 3c99cbf1bdf2a590437247763dfca2a2802ca7ad89a4bbf5c3be433d714ccaac
[INFO] running `Command { std: "docker" "start" "-a" "3c99cbf1bdf2a590437247763dfca2a2802ca7ad89a4bbf5c3be433d714ccaac", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.12s
[INFO] [stdout] 
[INFO] [stderr]      Running unittests (/opt/rustwide/target/debug/deps/tcp_server-b8728358db07f0f1)
[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" "3c99cbf1bdf2a590437247763dfca2a2802ca7ad89a4bbf5c3be433d714ccaac", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "3c99cbf1bdf2a590437247763dfca2a2802ca7ad89a4bbf5c3be433d714ccaac", kill_on_drop: false }`
[INFO] [stdout] 3c99cbf1bdf2a590437247763dfca2a2802ca7ad89a4bbf5c3be433d714ccaac