[INFO] cloning repository https://github.com/0xlucius/rusty-chat-server
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/0xlucius/rusty-chat-server" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2F0xlucius%2Frusty-chat-server", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2F0xlucius%2Frusty-chat-server'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] ba57cfb647a26f52d991543e296b7e562bc73c9b
[INFO] testing 0xlucius/rusty-chat-server against 1.55.0 for beta-1.56-1
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2F0xlucius%2Frusty-chat-server" "/workspace/builds/worker-64/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-64/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/0xlucius/rusty-chat-server 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/0xlucius/rusty-chat-server
[INFO] finished tweaking git repo https://github.com/0xlucius/rusty-chat-server
[INFO] tweaked toml for git repo https://github.com/0xlucius/rusty-chat-server written to /workspace/builds/worker-64/source/Cargo.toml
[INFO] crate git repo https://github.com/0xlucius/rusty-chat-server 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] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-64/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-64/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] 3fb62023160dc8fc2c3b7e4ec008219b04598a5245caec637d525464ceb24706
[INFO] running `Command { std: "docker" "start" "-a" "3fb62023160dc8fc2c3b7e4ec008219b04598a5245caec637d525464ceb24706", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "3fb62023160dc8fc2c3b7e4ec008219b04598a5245caec637d525464ceb24706", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "3fb62023160dc8fc2c3b7e4ec008219b04598a5245caec637d525464ceb24706", kill_on_drop: false }`
[INFO] [stdout] 3fb62023160dc8fc2c3b7e4ec008219b04598a5245caec637d525464ceb24706
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-64/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-64/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] dd11ddb13b5a62bab653924e298abbc92eee6b7236facd0c22ee17d297d4b01c
[INFO] running `Command { std: "docker" "start" "-a" "dd11ddb13b5a62bab653924e298abbc92eee6b7236facd0c22ee17d297d4b01c", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.99
[INFO] [stderr]    Compiling proc-macro2 v1.0.28
[INFO] [stderr]    Compiling unicode-xid v0.2.2
[INFO] [stderr]    Compiling syn v1.0.74
[INFO] [stderr]    Compiling memchr v2.4.0
[INFO] [stderr]    Compiling once_cell v1.8.0
[INFO] [stderr]    Compiling pin-project-lite v0.2.7
[INFO] [stderr]    Compiling instant v0.1.10
[INFO] [stderr]    Compiling tokio v1.9.0
[INFO] [stderr]    Compiling lock_api v0.4.4
[INFO] [stderr]    Compiling quote v1.0.9
[INFO] [stderr]    Compiling parking_lot_core v0.8.3
[INFO] [stderr]    Compiling num_cpus v1.13.0
[INFO] [stderr]    Compiling mio v0.7.13
[INFO] [stderr]    Compiling signal-hook-registry v1.4.0
[INFO] [stderr]    Compiling parking_lot v0.11.1
[INFO] [stderr]    Compiling tokio-macros v1.3.0
[INFO] [stderr]    Compiling chat-server v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] error: no rules expected the token `result`
[INFO] [stdout]   --> src/main.rs:25:17
[INFO] [stdout]    |
[INFO] [stdout] 25 | /                 tokio::select! {
[INFO] [stdout] 26 | |                     result = reader.read_line(&mut line) -> {
[INFO] [stdout] 27 | |                         if result.unwrap() == 0 {
[INFO] [stdout] 28 | |                             break;
[INFO] [stdout] ...  |
[INFO] [stdout] 37 | |                     }
[INFO] [stdout] 38 | |                 }
[INFO] [stdout]    | |_________________^ no rules expected this token in macro call
[INFO] [stdout]    |
[INFO] [stdout]    = note: this error originates in the macro `tokio::select` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `AsyncWriteExt`
[INFO] [stdout]  --> src/main.rs:1:35
[INFO] [stdout]   |
[INFO] [stdout] 1 | use tokio::{io::{AsyncBufReadExt, AsyncWriteExt, BufReader}, net::TcpListener, sync::broadcast};
[INFO] [stdout]   |                                   ^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `AsyncBufReadExt`
[INFO] [stdout]  --> src/main.rs:1:18
[INFO] [stdout]   |
[INFO] [stdout] 1 | use tokio::{io::{AsyncBufReadExt, AsyncWriteExt, BufReader}, net::TcpListener, sync::broadcast};
[INFO] [stdout]   |                  ^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to previous error; 2 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `chat-server` due to 2 previous errors; 2 warnings emitted
[INFO] running `Command { std: "docker" "inspect" "dd11ddb13b5a62bab653924e298abbc92eee6b7236facd0c22ee17d297d4b01c", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "dd11ddb13b5a62bab653924e298abbc92eee6b7236facd0c22ee17d297d4b01c", kill_on_drop: false }`
[INFO] [stdout] dd11ddb13b5a62bab653924e298abbc92eee6b7236facd0c22ee17d297d4b01c