[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 against master#ceab6128fa48a616bfd3e3adf4bc80133b8ee223 for no-never-type-fallback [INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FT1lman%2Ftcp-groupchat" "/workspace/builds/worker-5-tc1/source", kill_on_drop: false }` [INFO] [stderr] Cloning into '/workspace/builds/worker-5-tc1/source'... [INFO] [stderr] done. [INFO] validating manifest of git repo https://github.com/T1lman/tcp-groupchat on toolchain ceab6128fa48a616bfd3e3adf4bc80133b8ee223 [INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+ceab6128fa48a616bfd3e3adf4bc80133b8ee223" "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-5-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" "+ceab6128fa48a616bfd3e3adf4bc80133b8ee223" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }` [INFO] [stderr] Downloading crates ... [INFO] [stderr] Downloaded tokio v1.18.2 [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-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" "+ceab6128fa48a616bfd3e3adf4bc80133b8ee223" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }` [INFO] [stdout] 706ec69e46e36b2c8c98ab464b963565cc15df66fc9a4ccf65df2cb136d73311 [INFO] running `Command { std: "docker" "start" "-a" "706ec69e46e36b2c8c98ab464b963565cc15df66fc9a4ccf65df2cb136d73311", kill_on_drop: false }` [INFO] running `Command { std: "docker" "inspect" "706ec69e46e36b2c8c98ab464b963565cc15df66fc9a4ccf65df2cb136d73311", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "706ec69e46e36b2c8c98ab464b963565cc15df66fc9a4ccf65df2cb136d73311", kill_on_drop: false }` [INFO] [stdout] 706ec69e46e36b2c8c98ab464b963565cc15df66fc9a4ccf65df2cb136d73311 [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-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" "+ceab6128fa48a616bfd3e3adf4bc80133b8ee223" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }` [INFO] [stdout] f413cb4fc612d0b94e7a1bd1c80b4fcb538e034a63e182ca364f1b1ac9a819cc [INFO] running `Command { std: "docker" "start" "-a" "f413cb4fc612d0b94e7a1bd1c80b4fcb538e034a63e182ca364f1b1ac9a819cc", kill_on_drop: false }` [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 serde_derive v1.0.137 [INFO] [stderr] Compiling serde v1.0.137 [INFO] [stderr] Checking once_cell v1.12.0 [INFO] [stderr] Checking parking_lot_core v0.9.3 [INFO] [stderr] Checking lock_api v0.4.7 [INFO] [stderr] Checking time v0.1.44 [INFO] [stderr] Checking signal-hook-registry v1.4.0 [INFO] [stderr] Checking num_cpus v1.13.1 [INFO] [stderr] Checking socket2 v0.4.4 [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 quote v1.0.18 [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: 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: 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: 1 warning emitted [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: 1 warning 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: 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: 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: 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: 7 warnings emitted [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] Finished `dev` profile [unoptimized + debuginfo] target(s) in 6.67s [INFO] running `Command { std: "docker" "inspect" "f413cb4fc612d0b94e7a1bd1c80b4fcb538e034a63e182ca364f1b1ac9a819cc", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "f413cb4fc612d0b94e7a1bd1c80b4fcb538e034a63e182ca364f1b1ac9a819cc", kill_on_drop: false }` [INFO] [stdout] f413cb4fc612d0b94e7a1bd1c80b4fcb538e034a63e182ca364f1b1ac9a819cc