[INFO] cloning repository https://github.com/shuilianyu/rust-tcp-server
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/shuilianyu/rust-tcp-server" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fshuilianyu%2Frust-tcp-server", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fshuilianyu%2Frust-tcp-server'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] fa2ceb7eb09d4d5dc2635282a7b1bb1290759e08
[INFO] testing shuilianyu/rust-tcp-server against beta-2022-02-22 for beta-1.60-1
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fshuilianyu%2Frust-tcp-server" "/workspace/builds/worker-28/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-28/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/shuilianyu/rust-tcp-server on toolchain beta-2022-02-22
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2022-02-22" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/shuilianyu/rust-tcp-server
[INFO] finished tweaking git repo https://github.com/shuilianyu/rust-tcp-server
[INFO] tweaked toml for git repo https://github.com/shuilianyu/rust-tcp-server written to /workspace/builds/worker-28/source/Cargo.toml
[INFO] crate git repo https://github.com/shuilianyu/rust-tcp-server already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2022-02-22" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-28/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-28/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@sha256:0cd99ca24d8e8c98e67c542213511d985b8778b5bdcbb160e038429496686047" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2022-02-22" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 83c41a6fd5074a45e57485fa0ea5726dfb69c7ebefcd4987cf70deea506ca849
[INFO] running `Command { std: "docker" "start" "-a" "83c41a6fd5074a45e57485fa0ea5726dfb69c7ebefcd4987cf70deea506ca849", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "83c41a6fd5074a45e57485fa0ea5726dfb69c7ebefcd4987cf70deea506ca849", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "83c41a6fd5074a45e57485fa0ea5726dfb69c7ebefcd4987cf70deea506ca849", kill_on_drop: false }`
[INFO] [stdout] 83c41a6fd5074a45e57485fa0ea5726dfb69c7ebefcd4987cf70deea506ca849
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-28/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-28/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@sha256:0cd99ca24d8e8c98e67c542213511d985b8778b5bdcbb160e038429496686047" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2022-02-22" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 8ca2beeab2cbc8122495aa66fdf1c478729062b20548a0f5a5f13fcf88a78bcd
[INFO] running `Command { std: "docker" "start" "-a" "8ca2beeab2cbc8122495aa66fdf1c478729062b20548a0f5a5f13fcf88a78bcd", kill_on_drop: false }`
[INFO] [stderr]    Compiling tcpTest v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unnecessary parentheses around `if` condition
[INFO] [stdout]   --> src/main.rs:21:12
[INFO] [stdout]    |
[INFO] [stdout] 21 |         if (bytes_read > 10) {
[INFO] [stdout]    |            ^               ^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_parens)]` on by default
[INFO] [stdout] help: remove these parentheses
[INFO] [stdout]    |
[INFO] [stdout] 21 -         if (bytes_read > 10) {
[INFO] [stdout] 21 +         if bytes_read > 10 {
[INFO] [stdout]    | 
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: crate `tcpTest` should have a snake case name
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(non_snake_case)]` on by default
[INFO] [stdout]   = help: convert the identifier to snake case: `tcp_test`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 2 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.96s
[INFO] running `Command { std: "docker" "inspect" "8ca2beeab2cbc8122495aa66fdf1c478729062b20548a0f5a5f13fcf88a78bcd", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "8ca2beeab2cbc8122495aa66fdf1c478729062b20548a0f5a5f13fcf88a78bcd", kill_on_drop: false }`
[INFO] [stdout] 8ca2beeab2cbc8122495aa66fdf1c478729062b20548a0f5a5f13fcf88a78bcd
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-28/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-28/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@sha256:0cd99ca24d8e8c98e67c542213511d985b8778b5bdcbb160e038429496686047" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2022-02-22" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 1114732db82f1197acb31d7c315eed936d7e4335c7a406d89a520a18cb248c31
[INFO] running `Command { std: "docker" "start" "-a" "1114732db82f1197acb31d7c315eed936d7e4335c7a406d89a520a18cb248c31", kill_on_drop: false }`
[INFO] [stderr]    Compiling tcpTest v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unnecessary parentheses around `if` condition
[INFO] [stdout]   --> src/main.rs:21:12
[INFO] [stdout]    |
[INFO] [stdout] 21 |         if (bytes_read > 10) {
[INFO] [stdout]    |            ^               ^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_parens)]` on by default
[INFO] [stdout] help: remove these parentheses
[INFO] [stdout]    |
[INFO] [stdout] 21 -         if (bytes_read > 10) {
[INFO] [stdout] 21 +         if bytes_read > 10 {
[INFO] [stdout]    | 
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: crate `tcpTest` should have a snake case name
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(non_snake_case)]` on by default
[INFO] [stdout]   = help: convert the identifier to snake case: `tcp_test`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 2 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.43s
[INFO] running `Command { std: "docker" "inspect" "1114732db82f1197acb31d7c315eed936d7e4335c7a406d89a520a18cb248c31", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "1114732db82f1197acb31d7c315eed936d7e4335c7a406d89a520a18cb248c31", kill_on_drop: false }`
[INFO] [stdout] 1114732db82f1197acb31d7c315eed936d7e4335c7a406d89a520a18cb248c31
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-28/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-28/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@sha256:0cd99ca24d8e8c98e67c542213511d985b8778b5bdcbb160e038429496686047" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2022-02-22" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] 8af8b802fb71d57353da1f8a4e37487e960c6962e3f1f023a41db0894fbceb31
[INFO] running `Command { std: "docker" "start" "-a" "8af8b802fb71d57353da1f8a4e37487e960c6962e3f1f023a41db0894fbceb31", kill_on_drop: false }`
[INFO] [stderr] warning: unnecessary parentheses around `if` condition
[INFO] [stderr]   --> src/main.rs:21:12
[INFO] [stderr]    |
[INFO] [stderr] 21 |         if (bytes_read > 10) {
[INFO] [stderr]    |            ^               ^
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(unused_parens)]` on by default
[INFO] [stderr] help: remove these parentheses
[INFO] [stderr]    |
[INFO] [stderr] 21 -         if (bytes_read > 10) {
[INFO] [stderr] 21 +         if bytes_read > 10 {
[INFO] [stderr]    | 
[INFO] [stderr] 
[INFO] [stderr] warning: crate `tcpTest` should have a snake case name
[INFO] [stderr]   |
[INFO] [stderr]   = note: `#[warn(non_snake_case)]` on by default
[INFO] [stderr]   = help: convert the identifier to snake case: `tcp_test`
[INFO] [stderr] 
[INFO] [stderr] warning: `tcpTest` (bin "tcpTest" test) generated 2 warnings
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.00s
[INFO] [stderr]      Running unittests (/opt/rustwide/target/debug/deps/tcpTest-a36ede21bde3f667)
[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" "8af8b802fb71d57353da1f8a4e37487e960c6962e3f1f023a41db0894fbceb31", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "8af8b802fb71d57353da1f8a4e37487e960c6962e3f1f023a41db0894fbceb31", kill_on_drop: false }`
[INFO] [stdout] 8af8b802fb71d57353da1f8a4e37487e960c6962e3f1f023a41db0894fbceb31