[INFO] cloning repository https://github.com/MartMcMahon/rust_networking_example [INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/MartMcMahon/rust_networking_example" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FMartMcMahon%2Frust_networking_example", kill_on_drop: false }` [INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FMartMcMahon%2Frust_networking_example'... [INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }` [INFO] [stdout] 4ced6b2f51dc20e536f1e09cd977878ae81cee62 [INFO] checking MartMcMahon/rust_networking_example/4ced6b2f51dc20e536f1e09cd977878ae81cee62 against try#7014e13d5becc920d4bea3cd87942c8a13d359bf+rustflags=-Dtail_expr_drop_order for pr-129864 [INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FMartMcMahon%2Frust_networking_example" "/workspace/builds/worker-4-tc2/source", kill_on_drop: false }` [INFO] [stderr] Cloning into '/workspace/builds/worker-4-tc2/source'... [INFO] [stderr] done. [INFO] validating manifest of git repo https://github.com/MartMcMahon/rust_networking_example on toolchain 7014e13d5becc920d4bea3cd87942c8a13d359bf [INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+7014e13d5becc920d4bea3cd87942c8a13d359bf" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }` [INFO] started tweaking git repo https://github.com/MartMcMahon/rust_networking_example [INFO] finished tweaking git repo https://github.com/MartMcMahon/rust_networking_example [INFO] tweaked toml for git repo https://github.com/MartMcMahon/rust_networking_example written to /workspace/builds/worker-4-tc2/source/Cargo.toml [INFO] crate git repo https://github.com/MartMcMahon/rust_networking_example 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" "+7014e13d5becc920d4bea3cd87942c8a13d359bf" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }` [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc2/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:ceb6ea022f8a89cebbe621bb4987e73a935bd40dfbb726f832cfff4742a5b95a" "/opt/rustwide/cargo-home/bin/cargo" "+7014e13d5becc920d4bea3cd87942c8a13d359bf" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }` [INFO] [stdout] 719feade100afa0ae4e7618cf8fde8d1d46ae443e916d6ac019a9757feac066c [INFO] running `Command { std: "docker" "start" "-a" "719feade100afa0ae4e7618cf8fde8d1d46ae443e916d6ac019a9757feac066c", kill_on_drop: false }` [INFO] running `Command { std: "docker" "inspect" "719feade100afa0ae4e7618cf8fde8d1d46ae443e916d6ac019a9757feac066c", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "719feade100afa0ae4e7618cf8fde8d1d46ae443e916d6ac019a9757feac066c", kill_on_drop: false }` [INFO] [stdout] 719feade100afa0ae4e7618cf8fde8d1d46ae443e916d6ac019a9757feac066c [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc2/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 -Dtail_expr_drop_order" "-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:ceb6ea022f8a89cebbe621bb4987e73a935bd40dfbb726f832cfff4742a5b95a" "/opt/rustwide/cargo-home/bin/cargo" "+7014e13d5becc920d4bea3cd87942c8a13d359bf" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }` [INFO] [stdout] 41c935a9bae25972df16a90df0b733a33758ac378decbf6c1bd7822181faf0dc [INFO] running `Command { std: "docker" "start" "-a" "41c935a9bae25972df16a90df0b733a33758ac378decbf6c1bd7822181faf0dc", kill_on_drop: false }` [INFO] [stderr] Compiling libc v0.2.106 [INFO] [stderr] Compiling proc-macro2 v1.0.32 [INFO] [stderr] Compiling syn v1.0.81 [INFO] [stderr] Compiling parking_lot_core v0.8.5 [INFO] [stderr] Checking instant v0.1.12 [INFO] [stderr] Checking scopeguard v1.1.0 [INFO] [stderr] Checking smallvec v1.7.0 [INFO] [stderr] Compiling tokio v1.13.0 [INFO] [stderr] Checking lock_api v0.4.5 [INFO] [stderr] Checking once_cell v1.8.0 [INFO] [stderr] Checking mio v0.7.14 [INFO] [stderr] Checking num_cpus v1.13.0 [INFO] [stderr] Checking signal-hook-registry v1.4.0 [INFO] [stderr] Checking parking_lot v0.11.2 [INFO] [stderr] Compiling quote v1.0.10 [INFO] [stderr] Compiling tokio-macros v1.5.1 [INFO] [stderr] Checking rust_networking_example v0.1.0 (/opt/rustwide/workdir) [INFO] [stdout] warning: unused imports: `BufReader` and `sync::broadcast` [INFO] [stdout] --> src/client/main.rs:2:56 [INFO] [stdout] | [INFO] [stdout] 2 | io::{AsyncBufReadExt, AsyncReadExt, AsyncWriteExt, BufReader}, [INFO] [stdout] | ^^^^^^^^^ [INFO] [stdout] 3 | net::TcpStream, [INFO] [stdout] 4 | 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/client/main.rs:2:10 [INFO] [stdout] | [INFO] [stdout] 2 | io::{AsyncBufReadExt, AsyncReadExt, AsyncWriteExt, BufReader}, [INFO] [stdout] | ^^^^^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: 2 warnings emitted [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused imports: `BufReader` and `sync::broadcast` [INFO] [stdout] --> src/client/main.rs:2:56 [INFO] [stdout] | [INFO] [stdout] 2 | io::{AsyncBufReadExt, AsyncReadExt, AsyncWriteExt, BufReader}, [INFO] [stdout] | ^^^^^^^^^ [INFO] [stdout] 3 | net::TcpStream, [INFO] [stdout] 4 | 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/client/main.rs:2:10 [INFO] [stdout] | [INFO] [stdout] 2 | io::{AsyncBufReadExt, AsyncReadExt, AsyncWriteExt, BufReader}, [INFO] [stdout] | ^^^^^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `other_addr` [INFO] [stdout] --> src/server/main.rs:35:39 [INFO] [stdout] | [INFO] [stdout] 35 | let (mut msg, other_addr) = result.unwrap(); [INFO] [stdout] | ^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_other_addr` [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_variables)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: variable does not need to be mutable [INFO] [stdout] --> src/server/main.rs:35:30 [INFO] [stdout] | [INFO] [stdout] 35 | let (mut msg, other_addr) = result.unwrap(); [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: 2 warnings emitted [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `other_addr` [INFO] [stdout] --> src/server/main.rs:35:39 [INFO] [stdout] | [INFO] [stdout] 35 | let (mut msg, other_addr) = result.unwrap(); [INFO] [stdout] | ^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_other_addr` [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_variables)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: 2 warnings emitted [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: variable does not need to be mutable [INFO] [stdout] --> src/server/main.rs:35:30 [INFO] [stdout] | [INFO] [stdout] 35 | let (mut msg, other_addr) = result.unwrap(); [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: 2 warnings emitted [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] Finished `dev` profile [unoptimized + debuginfo] target(s) in 14.56s [INFO] running `Command { std: "docker" "inspect" "41c935a9bae25972df16a90df0b733a33758ac378decbf6c1bd7822181faf0dc", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "41c935a9bae25972df16a90df0b733a33758ac378decbf6c1bd7822181faf0dc", kill_on_drop: false }` [INFO] [stdout] 41c935a9bae25972df16a90df0b733a33758ac378decbf6c1bd7822181faf0dc