[INFO] cloning repository https://github.com/karuppiah7890/tcp-chat-server
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/karuppiah7890/tcp-chat-server" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fkaruppiah7890%2Ftcp-chat-server", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fkaruppiah7890%2Ftcp-chat-server'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] d33890066e47ae9d5d5690f4ea2003cfecfcac4f
[INFO] checking karuppiah7890/tcp-chat-server against master#dfd7b8d03fb93d0e03147d28b3be6d93260fa94d for pr-87050
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fkaruppiah7890%2Ftcp-chat-server" "/workspace/builds/worker-2/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-2/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/karuppiah7890/tcp-chat-server on toolchain dfd7b8d03fb93d0e03147d28b3be6d93260fa94d
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+dfd7b8d03fb93d0e03147d28b3be6d93260fa94d" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/karuppiah7890/tcp-chat-server
[INFO] finished tweaking git repo https://github.com/karuppiah7890/tcp-chat-server
[INFO] tweaked toml for git repo https://github.com/karuppiah7890/tcp-chat-server written to /workspace/builds/worker-2/source/Cargo.toml
[INFO] crate git repo https://github.com/karuppiah7890/tcp-chat-server already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+dfd7b8d03fb93d0e03147d28b3be6d93260fa94d" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/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@sha256:34b6a614d2c27851fe6cbf88fbd1137609cefab8b10d0615aaeb6fd47975d74e" "/opt/rustwide/cargo-home/bin/cargo" "+dfd7b8d03fb93d0e03147d28b3be6d93260fa94d" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] [stdout] 7db963d1c7f13f5a2b80b413e3a45f206182431866fdb161c4ef732c19f86d27
[INFO] running `Command { std: "docker" "start" "-a" "7db963d1c7f13f5a2b80b413e3a45f206182431866fdb161c4ef732c19f86d27", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "7db963d1c7f13f5a2b80b413e3a45f206182431866fdb161c4ef732c19f86d27", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "7db963d1c7f13f5a2b80b413e3a45f206182431866fdb161c4ef732c19f86d27", kill_on_drop: false }`
[INFO] [stdout] 7db963d1c7f13f5a2b80b413e3a45f206182431866fdb161c4ef732c19f86d27
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/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" "ghcr.io/rust-lang/crates-build-env/linux@sha256:34b6a614d2c27851fe6cbf88fbd1137609cefab8b10d0615aaeb6fd47975d74e" "/opt/rustwide/cargo-home/bin/cargo" "+dfd7b8d03fb93d0e03147d28b3be6d93260fa94d" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] f9a8bf75369ca94996b76a3e9fca8cef8720eeb6bc3bab7f4e9972e41cbb9ea2
[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" "f9a8bf75369ca94996b76a3e9fca8cef8720eeb6bc3bab7f4e9972e41cbb9ea2", kill_on_drop: false }`
[INFO] [stderr]     Checking tcp-server v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.35s
[INFO] running `Command { std: "docker" "inspect" "f9a8bf75369ca94996b76a3e9fca8cef8720eeb6bc3bab7f4e9972e41cbb9ea2", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "f9a8bf75369ca94996b76a3e9fca8cef8720eeb6bc3bab7f4e9972e41cbb9ea2", kill_on_drop: false }`
[INFO] [stdout] f9a8bf75369ca94996b76a3e9fca8cef8720eeb6bc3bab7f4e9972e41cbb9ea2