[INFO] cloning repository https://github.com/benasvaleika/rust-tcp-chat
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/benasvaleika/rust-tcp-chat" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fbenasvaleika%2Frust-tcp-chat", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fbenasvaleika%2Frust-tcp-chat'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 0028470591b6feda5df7f468b922998a4215e8bb
[INFO] testing benasvaleika/rust-tcp-chat against beta-2022-04-10 for beta-1.61-1
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fbenasvaleika%2Frust-tcp-chat" "/workspace/builds/worker-13/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-13/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/benasvaleika/rust-tcp-chat on toolchain beta-2022-04-10
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2022-04-10" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/benasvaleika/rust-tcp-chat
[INFO] finished tweaking git repo https://github.com/benasvaleika/rust-tcp-chat
[INFO] tweaked toml for git repo https://github.com/benasvaleika/rust-tcp-chat written to /workspace/builds/worker-13/source/Cargo.toml
[INFO] crate git repo https://github.com/benasvaleika/rust-tcp-chat already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2022-04-10" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-13/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-13/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:b0c94ce3c1162fcb8e57cac5b65ec2f72eabb1eebea4fcc35e269e823f681646" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2022-04-10" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 5a909fdd9b15a3e37710c624882a8e0daf661a5977cd97cda9103f28053250b5
[INFO] running `Command { std: "docker" "start" "-a" "5a909fdd9b15a3e37710c624882a8e0daf661a5977cd97cda9103f28053250b5", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "5a909fdd9b15a3e37710c624882a8e0daf661a5977cd97cda9103f28053250b5", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "5a909fdd9b15a3e37710c624882a8e0daf661a5977cd97cda9103f28053250b5", kill_on_drop: false }`
[INFO] [stdout] 5a909fdd9b15a3e37710c624882a8e0daf661a5977cd97cda9103f28053250b5
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-13/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-13/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:b0c94ce3c1162fcb8e57cac5b65ec2f72eabb1eebea4fcc35e269e823f681646" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2022-04-10" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 0c270cc4cd32aeddd8983b30aafb94e66118e28061abff49dfff4e9506f53de6
[INFO] running `Command { std: "docker" "start" "-a" "0c270cc4cd32aeddd8983b30aafb94e66118e28061abff49dfff4e9506f53de6", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]    Compiling rust-tcp-chat v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unnecessary parentheses around `if` condition
[INFO] [stdout]   --> src/main.rs:25:8
[INFO] [stdout]    |
[INFO] [stdout] 25 |     if (args.len() != 3) {
[INFO] [stdout]    |        ^               ^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_parens)]` on by default
[INFO] [stdout] help: remove these parentheses
[INFO] [stdout]    |
[INFO] [stdout] 25 -     if (args.len() != 3) {
[INFO] [stdout] 25 +     if args.len() != 3 {
[INFO] [stdout]    | 
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 1.19s
[INFO] running `Command { std: "docker" "inspect" "0c270cc4cd32aeddd8983b30aafb94e66118e28061abff49dfff4e9506f53de6", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "0c270cc4cd32aeddd8983b30aafb94e66118e28061abff49dfff4e9506f53de6", kill_on_drop: false }`
[INFO] [stdout] 0c270cc4cd32aeddd8983b30aafb94e66118e28061abff49dfff4e9506f53de6
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-13/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-13/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:b0c94ce3c1162fcb8e57cac5b65ec2f72eabb1eebea4fcc35e269e823f681646" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2022-04-10" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 6864eef4a3d491a3f38539db79ccb4dbe773b9cffaaa020216ea2cec220c02d4
[INFO] running `Command { std: "docker" "start" "-a" "6864eef4a3d491a3f38539db79ccb4dbe773b9cffaaa020216ea2cec220c02d4", kill_on_drop: false }`
[INFO] [stderr]    Compiling rust-tcp-chat v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unnecessary parentheses around `if` condition
[INFO] [stdout]   --> src/main.rs:25:8
[INFO] [stdout]    |
[INFO] [stdout] 25 |     if (args.len() != 3) {
[INFO] [stdout]    |        ^               ^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_parens)]` on by default
[INFO] [stdout] help: remove these parentheses
[INFO] [stdout]    |
[INFO] [stdout] 25 -     if (args.len() != 3) {
[INFO] [stdout] 25 +     if args.len() != 3 {
[INFO] [stdout]    | 
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.34s
[INFO] [stderr]   Executable unittests src/main.rs (/opt/rustwide/target/debug/deps/rust_tcp_chat-708ac4552797bfda)
[INFO] running `Command { std: "docker" "inspect" "6864eef4a3d491a3f38539db79ccb4dbe773b9cffaaa020216ea2cec220c02d4", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "6864eef4a3d491a3f38539db79ccb4dbe773b9cffaaa020216ea2cec220c02d4", kill_on_drop: false }`
[INFO] [stdout] 6864eef4a3d491a3f38539db79ccb4dbe773b9cffaaa020216ea2cec220c02d4
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-13/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-13/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:b0c94ce3c1162fcb8e57cac5b65ec2f72eabb1eebea4fcc35e269e823f681646" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2022-04-10" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] 2ee724ec0add5c981a9ae77188a93189b065c132f2ff394dd2012a3e667988a0
[INFO] running `Command { std: "docker" "start" "-a" "2ee724ec0add5c981a9ae77188a93189b065c132f2ff394dd2012a3e667988a0", kill_on_drop: false }`
[INFO] [stderr] warning: unnecessary parentheses around `if` condition
[INFO] [stderr]   --> src/main.rs:25:8
[INFO] [stderr]    |
[INFO] [stderr] 25 |     if (args.len() != 3) {
[INFO] [stderr]    |        ^               ^
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(unused_parens)]` on by default
[INFO] [stderr] help: remove these parentheses
[INFO] [stderr]    |
[INFO] [stderr] 25 -     if (args.len() != 3) {
[INFO] [stderr] 25 +     if args.len() != 3 {
[INFO] [stderr]    | 
[INFO] [stderr] 
[INFO] [stderr] warning: `rust-tcp-chat` (bin "rust-tcp-chat" test) generated 1 warning
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.00s
[INFO] [stderr]      Running unittests src/main.rs (/opt/rustwide/target/debug/deps/rust_tcp_chat-708ac4552797bfda)
[INFO] [stdout] 
[INFO] [stdout] running 0 tests
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 0 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.00s
[INFO] [stdout] 
[INFO] running `Command { std: "docker" "inspect" "2ee724ec0add5c981a9ae77188a93189b065c132f2ff394dd2012a3e667988a0", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "2ee724ec0add5c981a9ae77188a93189b065c132f2ff394dd2012a3e667988a0", kill_on_drop: false }`
[INFO] [stdout] 2ee724ec0add5c981a9ae77188a93189b065c132f2ff394dd2012a3e667988a0