[INFO] cloning repository https://github.com/keepfocused/rust_tcp_listener
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/keepfocused/rust_tcp_listener" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fkeepfocused%2Frust_tcp_listener", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fkeepfocused%2Frust_tcp_listener'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] d9576650cb7f3cadafd1decd1013c0cb43180089
[INFO] building keepfocused/rust_tcp_listener against try#d79d87d4c0f7f0d0785ad6e493cf8cf718ed89a6 for pr-146237-1
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fkeepfocused%2Frust_tcp_listener" "/workspace/builds/worker-6-tc2/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-6-tc2/source'...
[INFO] [stderr] done.
[INFO] started tweaking git repo https://github.com/keepfocused/rust_tcp_listener
[INFO] finished tweaking git repo https://github.com/keepfocused/rust_tcp_listener
[INFO] tweaked toml for git repo https://github.com/keepfocused/rust_tcp_listener written to /workspace/builds/worker-6-tc2/source/Cargo.toml
[INFO] validating manifest of git repo https://github.com/keepfocused/rust_tcp_listener on toolchain d79d87d4c0f7f0d0785ad6e493cf8cf718ed89a6
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+d79d87d4c0f7f0d0785ad6e493cf8cf718ed89a6" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate git repo https://github.com/keepfocused/rust_tcp_listener 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" "+d79d87d4c0f7f0d0785ad6e493cf8cf718ed89a6" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc2/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:e90291280db7d1fac5b66fc6dad9f9662629e7365a55743daf9bdf73ebc4ea79" "/opt/rustwide/cargo-home/bin/cargo" "+d79d87d4c0f7f0d0785ad6e493cf8cf718ed89a6" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 9bedb0339feaf88dcda60dd87bb037c7896e3f8251191b30c442a1b5e8cb3790
[INFO] running `Command { std: "docker" "start" "-a" "9bedb0339feaf88dcda60dd87bb037c7896e3f8251191b30c442a1b5e8cb3790", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "9bedb0339feaf88dcda60dd87bb037c7896e3f8251191b30c442a1b5e8cb3790", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "9bedb0339feaf88dcda60dd87bb037c7896e3f8251191b30c442a1b5e8cb3790", kill_on_drop: false }`
[INFO] [stdout] 9bedb0339feaf88dcda60dd87bb037c7896e3f8251191b30c442a1b5e8cb3790
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc2/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=forbid" "-e" "RUSTDOCFLAGS=--cap-lints=forbid" "-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:e90291280db7d1fac5b66fc6dad9f9662629e7365a55743daf9bdf73ebc4ea79" "/opt/rustwide/cargo-home/bin/cargo" "+d79d87d4c0f7f0d0785ad6e493cf8cf718ed89a6" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 9d238ad77060cf207011e9789600de4f35dca67ff3e986bb442d33bdc28d7e0f
[INFO] running `Command { std: "docker" "start" "-a" "9d238ad77060cf207011e9789600de4f35dca67ff3e986bb442d33bdc28d7e0f", kill_on_drop: false }`
[INFO] [stderr]    Compiling rust_tcp_listener v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: function `handle_connection3` is never used
[INFO] [stdout]   --> src/main.rs:48:4
[INFO] [stdout]    |
[INFO] [stdout] 48 | fn handle_connection3(mut stream: TcpStream) {
[INFO] [stdout]    |    ^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `handle_connection2` is never used
[INFO] [stdout]   --> src/main.rs:67:4
[INFO] [stdout]    |
[INFO] [stdout] 67 | fn handle_connection2(mut stream: TcpStream) {
[INFO] [stdout]    |    ^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 1.13s
[INFO] running `Command { std: "docker" "inspect" "9d238ad77060cf207011e9789600de4f35dca67ff3e986bb442d33bdc28d7e0f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "9d238ad77060cf207011e9789600de4f35dca67ff3e986bb442d33bdc28d7e0f", kill_on_drop: false }`
[INFO] [stdout] 9d238ad77060cf207011e9789600de4f35dca67ff3e986bb442d33bdc28d7e0f
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc2/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=forbid" "-e" "RUSTDOCFLAGS=--cap-lints=forbid" "-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:e90291280db7d1fac5b66fc6dad9f9662629e7365a55743daf9bdf73ebc4ea79" "/opt/rustwide/cargo-home/bin/cargo" "+d79d87d4c0f7f0d0785ad6e493cf8cf718ed89a6" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 59a408b5cec85cbf393ace67a094d0ac73a005cdcbd8268a38da4d26fbef62f9
[INFO] running `Command { std: "docker" "start" "-a" "59a408b5cec85cbf393ace67a094d0ac73a005cdcbd8268a38da4d26fbef62f9", kill_on_drop: false }`
[INFO] [stderr]    Compiling rust_tcp_listener v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: function `handle_connection3` is never used
[INFO] [stdout]   --> src/main.rs:48:4
[INFO] [stdout]    |
[INFO] [stdout] 48 | fn handle_connection3(mut stream: TcpStream) {
[INFO] [stdout]    |    ^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `handle_connection2` is never used
[INFO] [stdout]   --> src/main.rs:67:4
[INFO] [stdout]    |
[INFO] [stdout] 67 | fn handle_connection2(mut stream: TcpStream) {
[INFO] [stdout]    |    ^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 0.86s
[INFO] running `Command { std: "docker" "inspect" "59a408b5cec85cbf393ace67a094d0ac73a005cdcbd8268a38da4d26fbef62f9", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "59a408b5cec85cbf393ace67a094d0ac73a005cdcbd8268a38da4d26fbef62f9", kill_on_drop: false }`
[INFO] [stdout] 59a408b5cec85cbf393ace67a094d0ac73a005cdcbd8268a38da4d26fbef62f9