[INFO] cloning repository https://github.com/songhaoxin/simple-tcp-echo-server
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/songhaoxin/simple-tcp-echo-server" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fsonghaoxin%2Fsimple-tcp-echo-server", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fsonghaoxin%2Fsimple-tcp-echo-server'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] f1f95008231cdf69608ac51b88d18e0d37d91a35
[INFO] checking songhaoxin/simple-tcp-echo-server/f1f95008231cdf69608ac51b88d18e0d37d91a35 against nightly-2024-02-05 for check-cfg
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fsonghaoxin%2Fsimple-tcp-echo-server" "/workspace/builds/worker-0-tc1/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-0-tc1/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/songhaoxin/simple-tcp-echo-server on toolchain nightly-2024-02-05
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+nightly-2024-02-05" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/songhaoxin/simple-tcp-echo-server
[INFO] finished tweaking git repo https://github.com/songhaoxin/simple-tcp-echo-server
[INFO] tweaked toml for git repo https://github.com/songhaoxin/simple-tcp-echo-server written to /workspace/builds/worker-0-tc1/source/Cargo.toml
[INFO] crate git repo https://github.com/songhaoxin/simple-tcp-echo-server 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" "+nightly-2024-02-05" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-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@sha256:2788e3201cd34a07e3172128adcd8b3090168a8e3bcc40d7c032b9dda1df7d1c" "/opt/rustwide/cargo-home/bin/cargo" "+nightly-2024-02-05" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] ee2e62fae7e2d211e823dbff7457d00f81a6f20d543ed954d3ecc7a552758aa9
[INFO] running `Command { std: "docker" "start" "-a" "ee2e62fae7e2d211e823dbff7457d00f81a6f20d543ed954d3ecc7a552758aa9", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "ee2e62fae7e2d211e823dbff7457d00f81a6f20d543ed954d3ecc7a552758aa9", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "ee2e62fae7e2d211e823dbff7457d00f81a6f20d543ed954d3ecc7a552758aa9", kill_on_drop: false }`
[INFO] [stdout] ee2e62fae7e2d211e823dbff7457d00f81a6f20d543ed954d3ecc7a552758aa9
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-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=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@sha256:2788e3201cd34a07e3172128adcd8b3090168a8e3bcc40d7c032b9dda1df7d1c" "/opt/rustwide/cargo-home/bin/cargo" "+nightly-2024-02-05" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] b2631154f69b21e855790459d2204f583d7fc57a7f3cb2007ae96aece890603e
[INFO] running `Command { std: "docker" "start" "-a" "b2631154f69b21e855790459d2204f583d7fc57a7f3cb2007ae96aece890603e", kill_on_drop: false }`
[INFO] [stderr]     Checking tcp-echo-server v0.1.0 (/opt/rustwide/workdir/tcp-echo-server)
[INFO] [stderr]     Checking tcp-echo-client v0.1.0 (/opt/rustwide/workdir/tcp-echo-client)
[INFO] [stdout] warning: unreachable expression
[INFO] [stdout]   --> tcp-echo-client/src/main.rs:25:5
[INFO] [stdout]    |
[INFO] [stdout] 7  | /     loop {
[INFO] [stdout] 8  | |         let mut input = String::new();
[INFO] [stdout] 9  | |         io::stdin()
[INFO] [stdout] 10 | |             .read_line(&mut input)
[INFO] [stdout] ...  |
[INFO] [stdout] 23 | |         println!("");
[INFO] [stdout] 24 | |     }
[INFO] [stdout]    | |_____- any code following this expression is unreachable
[INFO] [stdout] 25 |       Ok(())
[INFO] [stdout]    |       ^^^^^^ unreachable expression
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unreachable_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unreachable expression
[INFO] [stdout]   --> tcp-echo-client/src/main.rs:25:5
[INFO] [stdout]    |
[INFO] [stdout] 7  | /     loop {
[INFO] [stdout] 8  | |         let mut input = String::new();
[INFO] [stdout] 9  | |         io::stdin()
[INFO] [stdout] 10 | |             .read_line(&mut input)
[INFO] [stdout] ...  |
[INFO] [stdout] 23 | |         println!("");
[INFO] [stdout] 24 | |     }
[INFO] [stdout]    | |_____- any code following this expression is unreachable
[INFO] [stdout] 25 |       Ok(())
[INFO] [stdout]    |       ^^^^^^ unreachable expression
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unreachable_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.04s
[INFO] running `Command { std: "docker" "inspect" "b2631154f69b21e855790459d2204f583d7fc57a7f3cb2007ae96aece890603e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "b2631154f69b21e855790459d2204f583d7fc57a7f3cb2007ae96aece890603e", kill_on_drop: false }`
[INFO] [stdout] b2631154f69b21e855790459d2204f583d7fc57a7f3cb2007ae96aece890603e
