[INFO] cloning repository https://github.com/whathegithub/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/whathegithub/Tcp_server" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fwhathegithub%2FTcp_server", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fwhathegithub%2FTcp_server'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] d95acc423244c6dab6e90b52f96aedfcbc869ad5
[INFO] checking whathegithub/Tcp_server against master#0d37dca25a51fb900a402c94c8818ad1c2789e30 for pr-77526
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fwhathegithub%2FTcp_server" "/workspace/builds/worker-0/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-0/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/whathegithub/Tcp_server on toolchain 0d37dca25a51fb900a402c94c8818ad1c2789e30
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+0d37dca25a51fb900a402c94c8818ad1c2789e30" "read-manifest" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/whathegithub/Tcp_server
[INFO] finished tweaking git repo https://github.com/whathegithub/Tcp_server
[INFO] tweaked toml for git repo https://github.com/whathegithub/Tcp_server written to /workspace/builds/worker-0/source/Cargo.toml
[INFO] crate git repo https://github.com/whathegithub/Tcp_server already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+0d37dca25a51fb900a402c94c8818ad1c2789e30" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/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" "rustops/crates-build-env@sha256:d92eaeed33fa75130ca1ee6c8a01d1ffb62bac859dfdfb3450e3e5d1c0146529" "/opt/rustwide/cargo-home/bin/cargo" "+0d37dca25a51fb900a402c94c8818ad1c2789e30" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 885918ada4c98f5ee9de0ffb1644202c86cca95cfc82552234e5a760c923ca28
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] running `Command { std: "docker" "start" "-a" "885918ada4c98f5ee9de0ffb1644202c86cca95cfc82552234e5a760c923ca28", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "885918ada4c98f5ee9de0ffb1644202c86cca95cfc82552234e5a760c923ca28", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "885918ada4c98f5ee9de0ffb1644202c86cca95cfc82552234e5a760c923ca28", kill_on_drop: false }`
[INFO] [stdout] 885918ada4c98f5ee9de0ffb1644202c86cca95cfc82552234e5a760c923ca28
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/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" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--user" "0:0" "--network" "none" "rustops/crates-build-env@sha256:d92eaeed33fa75130ca1ee6c8a01d1ffb62bac859dfdfb3450e3e5d1c0146529" "/opt/rustwide/cargo-home/bin/cargo" "+0d37dca25a51fb900a402c94c8818ad1c2789e30" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 0993c7a94da6f441515a5e0fca8a7c5f2a7ec4296b4869a1429bb2d7e843797e
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] running `Command { std: "docker" "start" "-a" "0993c7a94da6f441515a5e0fca8a7c5f2a7ec4296b4869a1429bb2d7e843797e", kill_on_drop: false }`
[INFO] [stderr]     Checking tcp_server v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused variable: `e`
[INFO] [stdout]   --> src/main.rs:23:17
[INFO] [stdout]    |
[INFO] [stdout] 23 |             Err(e) => {
[INFO] [stdout]    |                 ^ help: if this is intentional, prefix it with an underscore: `_e`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `handClientMsg` should have a snake case name
[INFO] [stdout]   --> src/main.rs:32:4
[INFO] [stdout]    |
[INFO] [stdout] 32 | fn handClientMsg(mut stream : TcpStream) {
[INFO] [stdout]    |    ^^^^^^^^^^^^^ help: convert the identifier to snake case: `hand_client_msg`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(non_snake_case)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `e`
[INFO] [stdout]   --> src/main.rs:23:17
[INFO] [stdout]    |
[INFO] [stdout] 23 |             Err(e) => {
[INFO] [stdout]    |                 ^ help: if this is intentional, prefix it with an underscore: `_e`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `handClientMsg` should have a snake case name
[INFO] [stdout]   --> src/main.rs:32:4
[INFO] [stdout]    |
[INFO] [stdout] 32 | fn handClientMsg(mut stream : TcpStream) {
[INFO] [stdout]    |    ^^^^^^^^^^^^^ help: convert the identifier to snake case: `hand_client_msg`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(non_snake_case)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 2 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 2 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.56s
[INFO] running `Command { std: "docker" "inspect" "0993c7a94da6f441515a5e0fca8a7c5f2a7ec4296b4869a1429bb2d7e843797e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "0993c7a94da6f441515a5e0fca8a7c5f2a7ec4296b4869a1429bb2d7e843797e", kill_on_drop: false }`
[INFO] [stdout] 0993c7a94da6f441515a5e0fca8a7c5f2a7ec4296b4869a1429bb2d7e843797e