[INFO] cloning repository https://github.com/shaurya947/rust-broadcast-chat-tokio
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/shaurya947/rust-broadcast-chat-tokio" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fshaurya947%2Frust-broadcast-chat-tokio", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fshaurya947%2Frust-broadcast-chat-tokio'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] e8311168d0cc0cd8f221f3eff8cecbb5cc28ffbf
[INFO] checking shaurya947/rust-broadcast-chat-tokio against try#df1b9bf194c9183fb7c0604484171064069ce232 for pr-149195-4
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fshaurya947%2Frust-broadcast-chat-tokio" "/workspace/builds/worker-4-tc2/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-4-tc2/source'...
[INFO] [stderr] done.
[INFO] started tweaking git repo https://github.com/shaurya947/rust-broadcast-chat-tokio
[INFO] finished tweaking git repo https://github.com/shaurya947/rust-broadcast-chat-tokio
[INFO] tweaked toml for git repo https://github.com/shaurya947/rust-broadcast-chat-tokio written to /workspace/builds/worker-4-tc2/source/Cargo.toml
[INFO] validating manifest of git repo https://github.com/shaurya947/rust-broadcast-chat-tokio on toolchain df1b9bf194c9183fb7c0604484171064069ce232
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+df1b9bf194c9183fb7c0604484171064069ce232" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate git repo https://github.com/shaurya947/rust-broadcast-chat-tokio 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" "+df1b9bf194c9183fb7c0604484171064069ce232" "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] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded tokio-websockets v0.3.3
[INFO] [stderr]   Downloaded syn v2.0.27
[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@sha256:29356a839a4d14451438f794ce8414e707d72405f44418718d724d22562fe786" "/opt/rustwide/cargo-home/bin/cargo" "+df1b9bf194c9183fb7c0604484171064069ce232" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 842f306d42234e722fc5e3cd1cd31b1190b63cd4ce42d75cba0c7caddc10f3cf
[INFO] running `Command { std: "docker" "start" "-a" "842f306d42234e722fc5e3cd1cd31b1190b63cd4ce42d75cba0c7caddc10f3cf", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "842f306d42234e722fc5e3cd1cd31b1190b63cd4ce42d75cba0c7caddc10f3cf", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "842f306d42234e722fc5e3cd1cd31b1190b63cd4ce42d75cba0c7caddc10f3cf", kill_on_drop: false }`
[INFO] [stdout] 842f306d42234e722fc5e3cd1cd31b1190b63cd4ce42d75cba0c7caddc10f3cf
[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" "-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@sha256:29356a839a4d14451438f794ce8414e707d72405f44418718d724d22562fe786" "/opt/rustwide/cargo-home/bin/cargo" "+df1b9bf194c9183fb7c0604484171064069ce232" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 0db33ffb0bc2af0a20cf08053f2fc6da2ef4bb3ce677664584e8ab32d25b35bf
[INFO] running `Command { std: "docker" "start" "-a" "0db33ffb0bc2af0a20cf08053f2fc6da2ef4bb3ce677664584e8ab32d25b35bf", kill_on_drop: false }`
[INFO] [stderr]    Compiling quote v1.0.32
[INFO] [stderr]     Checking pin-project-lite v0.2.10
[INFO] [stderr]    Compiling tokio v1.29.1
[INFO] [stderr]    Compiling slab v0.4.8
[INFO] [stderr]    Compiling futures-task v0.3.28
[INFO] [stderr]     Checking bytes v1.4.0
[INFO] [stderr]     Checking socket2 v0.4.9
[INFO] [stderr]     Checking signal-hook-registry v1.4.1
[INFO] [stderr]     Checking num_cpus v1.16.0
[INFO] [stderr]    Compiling syn v2.0.27
[INFO] [stderr]    Compiling httparse v1.8.0
[INFO] [stderr]    Compiling futures-util v0.3.28
[INFO] [stderr]     Checking tracing v0.1.37
[INFO] [stderr]     Checking fastrand v2.0.0
[INFO] [stderr]     Checking base64 v0.21.2
[INFO] [stderr]     Checking http v0.2.9
[INFO] [stderr]    Compiling tokio-macros v2.1.0
[INFO] [stderr]    Compiling futures-macro v0.3.28
[INFO] [stderr]     Checking tokio-util v0.7.8
[INFO] [stderr]     Checking tokio-websockets v0.3.3
[INFO] [stderr]     Checking rust-broadcast-chat v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 12.69s
[INFO] running `Command { std: "docker" "inspect" "0db33ffb0bc2af0a20cf08053f2fc6da2ef4bb3ce677664584e8ab32d25b35bf", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "0db33ffb0bc2af0a20cf08053f2fc6da2ef4bb3ce677664584e8ab32d25b35bf", kill_on_drop: false }`
[INFO] [stdout] 0db33ffb0bc2af0a20cf08053f2fc6da2ef4bb3ce677664584e8ab32d25b35bf