[INFO] cloning repository https://github.com/slient2010/tcp_demo_raw
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/slient2010/tcp_demo_raw" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fslient2010%2Ftcp_demo_raw", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fslient2010%2Ftcp_demo_raw'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 50887adb6ba48d2398166b21996eda218255af8f
[INFO] building slient2010/tcp_demo_raw against master#44f415c1d617ebc7b931a243b7b321ef8a6ca47c for pr-142134-abi-ast-error
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fslient2010%2Ftcp_demo_raw" "/workspace/builds/worker-6-tc1/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-6-tc1/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/slient2010/tcp_demo_raw on toolchain 44f415c1d617ebc7b931a243b7b321ef8a6ca47c
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+44f415c1d617ebc7b931a243b7b321ef8a6ca47c" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/slient2010/tcp_demo_raw
[INFO] finished tweaking git repo https://github.com/slient2010/tcp_demo_raw
[INFO] tweaked toml for git repo https://github.com/slient2010/tcp_demo_raw written to /workspace/builds/worker-6-tc1/source/Cargo.toml
[INFO] crate git repo https://github.com/slient2010/tcp_demo_raw already has a lockfile, it will not be regenerated
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+44f415c1d617ebc7b931a243b7b321ef8a6ca47c" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc1/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:eea15d5475069c3ef791f10c2c6b5af2ee421ef2da1e680ecce1cba46243983b" "/opt/rustwide/cargo-home/bin/cargo" "+44f415c1d617ebc7b931a243b7b321ef8a6ca47c" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 6c8cf64d9ab935e1723b86c0a8a5c47f7bfb381361c88da6ae4973a5516bafbb
[INFO] running `Command { std: "docker" "start" "-a" "6c8cf64d9ab935e1723b86c0a8a5c47f7bfb381361c88da6ae4973a5516bafbb", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "6c8cf64d9ab935e1723b86c0a8a5c47f7bfb381361c88da6ae4973a5516bafbb", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "6c8cf64d9ab935e1723b86c0a8a5c47f7bfb381361c88da6ae4973a5516bafbb", kill_on_drop: false }`
[INFO] [stdout] 6c8cf64d9ab935e1723b86c0a8a5c47f7bfb381361c88da6ae4973a5516bafbb
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc1/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" "RUSTDOCFLAGS=--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:eea15d5475069c3ef791f10c2c6b5af2ee421ef2da1e680ecce1cba46243983b" "/opt/rustwide/cargo-home/bin/cargo" "+44f415c1d617ebc7b931a243b7b321ef8a6ca47c" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] ffcffedd7b7f2f178ce7329ff78e9b320dd65fd0784423bff97646ac549b3592
[INFO] running `Command { std: "docker" "start" "-a" "ffcffedd7b7f2f178ce7329ff78e9b320dd65fd0784423bff97646ac549b3592", kill_on_drop: false }`
[INFO] [stderr]    Compiling proc-macro2 v1.0.86
[INFO] [stderr]    Compiling unicode-ident v1.0.13
[INFO] [stderr]    Compiling version_check v0.9.5
[INFO] [stderr]    Compiling syn v1.0.109
[INFO] [stderr]    Compiling libc v0.2.159
[INFO] [stderr]    Compiling serde v1.0.210
[INFO] [stderr]    Compiling unicode-segmentation v1.12.0
[INFO] [stderr]    Compiling unicode-width v0.1.14
[INFO] [stderr]    Compiling vec_map v0.8.2
[INFO] [stderr]    Compiling serde_json v1.0.128
[INFO] [stderr]    Compiling strsim v0.8.0
[INFO] [stderr]    Compiling ansi_term v0.12.1
[INFO] [stderr]    Compiling bitflags v1.3.2
[INFO] [stderr]    Compiling lazy_static v1.5.0
[INFO] [stderr]    Compiling ryu v1.0.18
[INFO] [stderr]    Compiling memchr v2.7.4
[INFO] [stderr]    Compiling itoa v1.0.11
[INFO] [stderr]    Compiling textwrap v0.11.0
[INFO] [stderr]    Compiling heck v0.3.3
[INFO] [stderr]    Compiling proc-macro-error-attr v1.0.4
[INFO] [stderr]    Compiling proc-macro-error v1.0.4
[INFO] [stderr]    Compiling quote v1.0.37
[INFO] [stderr]    Compiling atty v0.2.14
[INFO] [stderr]    Compiling syn v2.0.79
[INFO] [stderr]    Compiling clap v2.34.0
[INFO] [stderr]    Compiling serde_derive v1.0.210
[INFO] [stderr]    Compiling structopt-derive v0.4.18
[INFO] [stderr]    Compiling structopt v0.3.26
[INFO] [stderr]    Compiling tcp_demo_raw v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused variable: `send_server`
[INFO] [stdout]   --> src/bin/client.rs:23:9
[INFO] [stdout]    |
[INFO] [stdout] 23 |     let send_server = &args.message.as_bytes();
[INFO] [stdout]    |         ^^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_send_server`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 9.52s
[INFO] running `Command { std: "docker" "inspect" "ffcffedd7b7f2f178ce7329ff78e9b320dd65fd0784423bff97646ac549b3592", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "ffcffedd7b7f2f178ce7329ff78e9b320dd65fd0784423bff97646ac549b3592", kill_on_drop: false }`
[INFO] [stdout] ffcffedd7b7f2f178ce7329ff78e9b320dd65fd0784423bff97646ac549b3592
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc1/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" "RUSTDOCFLAGS=--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:eea15d5475069c3ef791f10c2c6b5af2ee421ef2da1e680ecce1cba46243983b" "/opt/rustwide/cargo-home/bin/cargo" "+44f415c1d617ebc7b931a243b7b321ef8a6ca47c" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] b0a024383c968e986b8bbeac1ed907401100f522cb081357b3b66bd513ecce3a
[INFO] running `Command { std: "docker" "start" "-a" "b0a024383c968e986b8bbeac1ed907401100f522cb081357b3b66bd513ecce3a", kill_on_drop: false }`
[INFO] [stderr]    Compiling tcp_demo_raw v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused variable: `send_server`
[INFO] [stdout]   --> src/bin/client.rs:23:9
[INFO] [stdout]    |
[INFO] [stdout] 23 |     let send_server = &args.message.as_bytes();
[INFO] [stdout]    |         ^^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_send_server`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 0.20s
[INFO] running `Command { std: "docker" "inspect" "b0a024383c968e986b8bbeac1ed907401100f522cb081357b3b66bd513ecce3a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "b0a024383c968e986b8bbeac1ed907401100f522cb081357b3b66bd513ecce3a", kill_on_drop: false }`
[INFO] [stdout] b0a024383c968e986b8bbeac1ed907401100f522cb081357b3b66bd513ecce3a