[INFO] cloning repository https://github.com/skade/async-chat-template
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/skade/async-chat-template" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fskade%2Fasync-chat-template", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fskade%2Fasync-chat-template'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 34de1c6aa9bee1f05c2dabde4b0f73d9621e046f
[INFO] checking skade/async-chat-template against master#8a65ee08296b36342bf7c3cdc15312ccbc357227 for pr-142704
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fskade%2Fasync-chat-template" "/workspace/builds/worker-1-tc1/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-1-tc1/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/skade/async-chat-template on toolchain 8a65ee08296b36342bf7c3cdc15312ccbc357227
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+8a65ee08296b36342bf7c3cdc15312ccbc357227" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/skade/async-chat-template
[INFO] finished tweaking git repo https://github.com/skade/async-chat-template
[INFO] tweaked toml for git repo https://github.com/skade/async-chat-template written to /workspace/builds/worker-1-tc1/source/Cargo.toml
[INFO] crate git repo https://github.com/skade/async-chat-template 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" "+8a65ee08296b36342bf7c3cdc15312ccbc357227" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded broadcaster v1.0.0
[INFO] [stderr]   Downloaded async-task v1.3.1
[INFO] [stderr]   Downloaded async-std v1.5.0
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-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@sha256:90999bfc7ae267e83380e433d8e61a7c072ca6729e92edbae886d3423b3a6f4c" "/opt/rustwide/cargo-home/bin/cargo" "+8a65ee08296b36342bf7c3cdc15312ccbc357227" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] a3986c19a65be1eff3e419a020da1fd6f7d8cc59bd1a574504a6affe195c67dd
[INFO] running `Command { std: "docker" "start" "-a" "a3986c19a65be1eff3e419a020da1fd6f7d8cc59bd1a574504a6affe195c67dd", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "a3986c19a65be1eff3e419a020da1fd6f7d8cc59bd1a574504a6affe195c67dd", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "a3986c19a65be1eff3e419a020da1fd6f7d8cc59bd1a574504a6affe195c67dd", kill_on_drop: false }`
[INFO] [stdout] a3986c19a65be1eff3e419a020da1fd6f7d8cc59bd1a574504a6affe195c67dd
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-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@sha256:90999bfc7ae267e83380e433d8e61a7c072ca6729e92edbae886d3423b3a6f4c" "/opt/rustwide/cargo-home/bin/cargo" "+8a65ee08296b36342bf7c3cdc15312ccbc357227" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] d75dec797482f27350e831bb53eccd36ef1f64368a62f47c0898ced2ab9ee0d9
[INFO] running `Command { std: "docker" "start" "-a" "d75dec797482f27350e831bb53eccd36ef1f64368a62f47c0898ced2ab9ee0d9", kill_on_drop: false }`
[INFO] [stderr]     Checking cfg-if v0.1.10
[INFO] [stderr]    Compiling libc v0.2.66
[INFO] [stderr]    Compiling proc-macro2 v1.0.8
[INFO] [stderr]    Compiling autocfg v0.1.7
[INFO] [stderr]    Compiling semver-parser v0.7.0
[INFO] [stderr]    Compiling unicode-xid v0.2.0
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[INFO] [stderr]    Compiling log v0.4.8
[INFO] [stderr]     Checking scopeguard v1.0.0
[INFO] [stderr]    Compiling proc-macro-nested v0.1.3
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[INFO] [stderr]     Checking slab v0.4.2
[INFO] [stderr]     Checking futures-core v0.3.4
[INFO] [stderr]    Compiling semver v0.9.0
[INFO] [stderr]     Checking futures-sink v0.3.4
[INFO] [stderr]     Checking smallvec v1.2.0
[INFO] [stderr]    Compiling crossbeam-utils v0.7.0
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[INFO] [stderr]     Checking broadcaster v1.0.0
[INFO] [stderr]     Checking async-std v1.5.0
[INFO] [stderr]     Checking async-chat-template v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused import: `async_std::io::BufReader`
[INFO] [stdout]  --> src/main.rs:5:5
[INFO] [stdout]   |
[INFO] [stdout] 5 | use async_std::io::BufReader;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `async_std::io::BufReader`
[INFO] [stdout]  --> src/main.rs:5:5
[INFO] [stdout]   |
[INFO] [stdout] 5 | use async_std::io::BufReader;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `stream`
[INFO] [stdout]   --> src/main.rs:47:21
[INFO] [stdout]    |
[INFO] [stdout] 47 | async fn client(mut stream: TcpStream, broker_connection: Sender<ClientEvent>) -> io::Result<()> {
[INFO] [stdout]    |                     ^^^^^^ help: if this is intentional, prefix it with an underscore: `_stream`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `broker_connection`
[INFO] [stdout]   --> src/main.rs:47:40
[INFO] [stdout]    |
[INFO] [stdout] 47 | async fn client(mut stream: TcpStream, broker_connection: Sender<ClientEvent>) -> io::Result<()> {
[INFO] [stdout]    |                                        ^^^^^^^^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_broker_connection`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]   --> src/main.rs:47:17
[INFO] [stdout]    |
[INFO] [stdout] 47 | async fn client(mut stream: TcpStream, broker_connection: Sender<ClientEvent>) -> io::Result<()> {
[INFO] [stdout]    |                 ----^^^^^^
[INFO] [stdout]    |                 |
[INFO] [stdout]    |                 help: remove this `mut`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_mut)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `broker_sender`
[INFO] [stdout]   --> src/main.rs:71:14
[INFO] [stdout]    |
[INFO] [stdout] 71 |         let (broker_sender, broker_receiver) = channel(10);
[INFO] [stdout]    |              ^^^^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_broker_sender`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `stream`
[INFO] [stdout]   --> src/main.rs:75:24
[INFO] [stdout]    |
[INFO] [stdout] 75 |         while let Some(stream) = incoming.next().await {
[INFO] [stdout]    |                        ^^^^^^ help: if this is intentional, prefix it with an underscore: `_stream`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variants `Connect`, `Message`, and `Disconnect` are never constructed
[INFO] [stdout]   --> src/main.rs:24:4
[INFO] [stdout]    |
[INFO] [stdout] 23 | enum ClientEvent {
[INFO] [stdout]    |      ----------- variants in this enum
[INFO] [stdout] 24 |    Connect(Client),
[INFO] [stdout]    |    ^^^^^^^
[INFO] [stdout] 25 |    Message { name: String, msg: String },
[INFO] [stdout]    |    ^^^^^^^
[INFO] [stdout] 26 |    Disconnect { name: String },
[INFO] [stdout]    |    ^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `client` is never used
[INFO] [stdout]   --> src/main.rs:47:10
[INFO] [stdout]    |
[INFO] [stdout] 47 | async fn client(mut stream: TcpStream, broker_connection: Sender<ClientEvent>) -> io::Result<()> {
[INFO] [stdout]    |          ^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `stream`
[INFO] [stdout]   --> src/main.rs:47:21
[INFO] [stdout]    |
[INFO] [stdout] 47 | async fn client(mut stream: TcpStream, broker_connection: Sender<ClientEvent>) -> io::Result<()> {
[INFO] [stdout]    |                     ^^^^^^ help: if this is intentional, prefix it with an underscore: `_stream`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `broker_connection`
[INFO] [stdout]   --> src/main.rs:47:40
[INFO] [stdout]    |
[INFO] [stdout] 47 | async fn client(mut stream: TcpStream, broker_connection: Sender<ClientEvent>) -> io::Result<()> {
[INFO] [stdout]    |                                        ^^^^^^^^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_broker_connection`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]   --> src/main.rs:47:17
[INFO] [stdout]    |
[INFO] [stdout] 47 | async fn client(mut stream: TcpStream, broker_connection: Sender<ClientEvent>) -> io::Result<()> {
[INFO] [stdout]    |                 ----^^^^^^
[INFO] [stdout]    |                 |
[INFO] [stdout]    |                 help: remove this `mut`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_mut)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `broker_sender`
[INFO] [stdout]   --> src/main.rs:71:14
[INFO] [stdout]    |
[INFO] [stdout] 71 |         let (broker_sender, broker_receiver) = channel(10);
[INFO] [stdout]    |              ^^^^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_broker_sender`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `stream`
[INFO] [stdout]   --> src/main.rs:75:24
[INFO] [stdout]    |
[INFO] [stdout] 75 |         while let Some(stream) = incoming.next().await {
[INFO] [stdout]    |                        ^^^^^^ help: if this is intentional, prefix it with an underscore: `_stream`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variants `Connect`, `Message`, and `Disconnect` are never constructed
[INFO] [stdout]   --> src/main.rs:24:4
[INFO] [stdout]    |
[INFO] [stdout] 23 | enum ClientEvent {
[INFO] [stdout]    |      ----------- variants in this enum
[INFO] [stdout] 24 |    Connect(Client),
[INFO] [stdout]    |    ^^^^^^^
[INFO] [stdout] 25 |    Message { name: String, msg: String },
[INFO] [stdout]    |    ^^^^^^^
[INFO] [stdout] 26 |    Disconnect { name: String },
[INFO] [stdout]    |    ^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `client` is never used
[INFO] [stdout]   --> src/main.rs:47:10
[INFO] [stdout]    |
[INFO] [stdout] 47 | async fn client(mut stream: TcpStream, broker_connection: Sender<ClientEvent>) -> io::Result<()> {
[INFO] [stdout]    |          ^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 16.60s
[INFO] running `Command { std: "docker" "inspect" "d75dec797482f27350e831bb53eccd36ef1f64368a62f47c0898ced2ab9ee0d9", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "d75dec797482f27350e831bb53eccd36ef1f64368a62f47c0898ced2ab9ee0d9", kill_on_drop: false }`
[INFO] [stdout] d75dec797482f27350e831bb53eccd36ef1f64368a62f47c0898ced2ab9ee0d9
