[INFO] cloning repository https://github.com/T1lman/tcp-groupchat [INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/T1lman/tcp-groupchat" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FT1lman%2Ftcp-groupchat", kill_on_drop: false }` [INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FT1lman%2Ftcp-groupchat'... [INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }` [INFO] [stdout] 359b4dcafbe8f0cd0a79d223ac3ef2ba2c5f704c [INFO] checking T1lman/tcp-groupchat/359b4dcafbe8f0cd0a79d223ac3ef2ba2c5f704c against master#ab869e094a907cc5d19b4080f22eccaf347f1f95 for pr-129604 [INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FT1lman%2Ftcp-groupchat" "/workspace/builds/worker-4-tc1/source", kill_on_drop: false }` [INFO] [stderr] Cloning into '/workspace/builds/worker-4-tc1/source'... [INFO] [stderr] done. [INFO] validating manifest of git repo https://github.com/T1lman/tcp-groupchat on toolchain ab869e094a907cc5d19b4080f22eccaf347f1f95 [INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+ab869e094a907cc5d19b4080f22eccaf347f1f95" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }` [INFO] started tweaking git repo https://github.com/T1lman/tcp-groupchat [INFO] finished tweaking git repo https://github.com/T1lman/tcp-groupchat [INFO] tweaked toml for git repo https://github.com/T1lman/tcp-groupchat written to /workspace/builds/worker-4-tc1/source/Cargo.toml [INFO] crate git repo https://github.com/T1lman/tcp-groupchat 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" "+ab869e094a907cc5d19b4080f22eccaf347f1f95" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }` [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-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@sha256:923055f121b5182466d55868a8b05e67af8ba4a3a3f6bad814e953ca3cd3ac2a" "/opt/rustwide/cargo-home/bin/cargo" "+ab869e094a907cc5d19b4080f22eccaf347f1f95" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }` [INFO] [stdout] a01ba5b91a6c7a5123ccf393297d3c3565132e7d1a5ebaae2eb78000a55d7347 [INFO] running `Command { std: "docker" "start" "-a" "a01ba5b91a6c7a5123ccf393297d3c3565132e7d1a5ebaae2eb78000a55d7347", kill_on_drop: false }` [INFO] running `Command { std: "docker" "inspect" "a01ba5b91a6c7a5123ccf393297d3c3565132e7d1a5ebaae2eb78000a55d7347", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "a01ba5b91a6c7a5123ccf393297d3c3565132e7d1a5ebaae2eb78000a55d7347", kill_on_drop: false }` [INFO] [stdout] a01ba5b91a6c7a5123ccf393297d3c3565132e7d1a5ebaae2eb78000a55d7347 [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-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@sha256:923055f121b5182466d55868a8b05e67af8ba4a3a3f6bad814e953ca3cd3ac2a" "/opt/rustwide/cargo-home/bin/cargo" "+ab869e094a907cc5d19b4080f22eccaf347f1f95" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }` [INFO] [stdout] 649b0b7c2ba11d09d6616dc438c372e132ef4ef73892e762197a1e473a546d2b [INFO] running `Command { std: "docker" "start" "-a" "649b0b7c2ba11d09d6616dc438c372e132ef4ef73892e762197a1e473a546d2b", kill_on_drop: false }` [INFO] [stderr] Compiling libc v0.2.126 [INFO] [stderr] Compiling proc-macro2 v1.0.39 [INFO] [stderr] Compiling unicode-ident v1.0.0 [INFO] [stderr] Compiling syn v1.0.95 [INFO] [stderr] Compiling num-traits v0.2.15 [INFO] [stderr] Compiling lock_api v0.4.7 [INFO] [stderr] Compiling parking_lot_core v0.9.3 [INFO] [stderr] Compiling log v0.4.17 [INFO] [stderr] Compiling serde_derive v1.0.137 [INFO] [stderr] Compiling num-integer v0.1.45 [INFO] [stderr] Checking scopeguard v1.1.0 [INFO] [stderr] Compiling memchr v2.5.0 [INFO] [stderr] Checking smallvec v1.8.0 [INFO] [stderr] Compiling serde v1.0.137 [INFO] [stderr] Checking bytes v1.1.0 [INFO] [stderr] Checking once_cell v1.12.0 [INFO] [stderr] Checking pin-project-lite v0.2.9 [INFO] [stderr] Compiling quote v1.0.18 [INFO] [stderr] Checking num_cpus v1.13.1 [INFO] [stderr] Checking time v0.1.44 [INFO] [stderr] Checking socket2 v0.4.4 [INFO] [stderr] Checking signal-hook-registry v1.4.0 [INFO] [stderr] Checking mio v0.8.3 [INFO] [stderr] Checking parking_lot v0.12.1 [INFO] [stderr] Checking chrono v0.4.19 [INFO] [stderr] Compiling tokio-macros v1.7.0 [INFO] [stderr] Checking tokio v1.18.2 [INFO] [stderr] Checking bincode v1.3.3 [INFO] [stderr] Checking communication-protocol v0.1.0 (/opt/rustwide/workdir) [INFO] [stdout] warning: unused variable: `socket` [INFO] [stdout] --> src/bin/server/main.rs:29:9 [INFO] [stdout] | [INFO] [stdout] 29 | mut socket: net::TcpStream, [INFO] [stdout] | ^^^^^^ help: if this is intentional, prefix it with an underscore: `_socket` [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_variables)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `recv` [INFO] [stdout] --> src/bin/server/main.rs:30:5 [INFO] [stdout] | [INFO] [stdout] 30 | recv: Receiver, [INFO] [stdout] | ^^^^ help: if this is intentional, prefix it with an underscore: `_recv` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `send` [INFO] [stdout] --> src/bin/server/main.rs:31:5 [INFO] [stdout] | [INFO] [stdout] 31 | send: Sender, [INFO] [stdout] | ^^^^ help: if this is intentional, prefix it with an underscore: `_send` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: variable does not need to be mutable [INFO] [stdout] --> src/bin/server/main.rs:29:5 [INFO] [stdout] | [INFO] [stdout] 29 | mut socket: net::TcpStream, [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: variable does not need to be mutable [INFO] [stdout] --> src/bin/server/main.rs:35:47 [INFO] [stdout] | [INFO] [stdout] 35 | async fn handle_read(mut read: OwnedReadHalf, mut sender: Sender) { [INFO] [stdout] | ----^^^^^^ [INFO] [stdout] | | [INFO] [stdout] | help: remove this `mut` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: variable does not need to be mutable [INFO] [stdout] --> src/bin/client/main.rs:7:9 [INFO] [stdout] | [INFO] [stdout] 7 | let mut stream = tokio::net::TcpStream::connect("localhost:8080") [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: `receiver` [INFO] [stdout] --> src/bin/server/main.rs:12:18 [INFO] [stdout] | [INFO] [stdout] 12 | let (sender, receiver) = broadcast::channel(100); [INFO] [stdout] | ^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_receiver` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: 1 warning emitted [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: function `handle_connection` is never used [INFO] [stdout] --> src/bin/server/main.rs:28:10 [INFO] [stdout] | [INFO] [stdout] 28 | async fn handle_connection( [INFO] [stdout] | ^^^^^^^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(dead_code)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `socket` [INFO] [stdout] --> src/bin/server/main.rs:29:9 [INFO] [stdout] | [INFO] [stdout] 29 | mut socket: net::TcpStream, [INFO] [stdout] | ^^^^^^ help: if this is intentional, prefix it with an underscore: `_socket` [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_variables)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `recv` [INFO] [stdout] --> src/bin/server/main.rs:30:5 [INFO] [stdout] | [INFO] [stdout] 30 | recv: Receiver, [INFO] [stdout] | ^^^^ help: if this is intentional, prefix it with an underscore: `_recv` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `send` [INFO] [stdout] --> src/bin/server/main.rs:31:5 [INFO] [stdout] | [INFO] [stdout] 31 | send: Sender, [INFO] [stdout] | ^^^^ help: if this is intentional, prefix it with an underscore: `_send` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: variable does not need to be mutable [INFO] [stdout] --> src/bin/server/main.rs:29:5 [INFO] [stdout] | [INFO] [stdout] 29 | mut socket: net::TcpStream, [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: variable does not need to be mutable [INFO] [stdout] --> src/bin/server/main.rs:35:47 [INFO] [stdout] | [INFO] [stdout] 35 | async fn handle_read(mut read: OwnedReadHalf, mut sender: Sender) { [INFO] [stdout] | ----^^^^^^ [INFO] [stdout] | | [INFO] [stdout] | help: remove this `mut` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: 7 warnings emitted [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `receiver` [INFO] [stdout] --> src/bin/server/main.rs:12:18 [INFO] [stdout] | [INFO] [stdout] 12 | let (sender, receiver) = broadcast::channel(100); [INFO] [stdout] | ^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_receiver` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: variable does not need to be mutable [INFO] [stdout] --> src/bin/client/main.rs:7:9 [INFO] [stdout] | [INFO] [stdout] 7 | let mut stream = tokio::net::TcpStream::connect("localhost:8080") [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: function `handle_connection` is never used [INFO] [stdout] --> src/bin/server/main.rs:28:10 [INFO] [stdout] | [INFO] [stdout] 28 | async fn handle_connection( [INFO] [stdout] | ^^^^^^^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(dead_code)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: 7 warnings emitted [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: 1 warning emitted [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] Finished `dev` profile [unoptimized + debuginfo] target(s) in 22.19s [INFO] running `Command { std: "docker" "inspect" "649b0b7c2ba11d09d6616dc438c372e132ef4ef73892e762197a1e473a546d2b", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "649b0b7c2ba11d09d6616dc438c372e132ef4ef73892e762197a1e473a546d2b", kill_on_drop: false }` [INFO] [stdout] 649b0b7c2ba11d09d6616dc438c372e132ef4ef73892e762197a1e473a546d2b