[INFO] cloning repository https://github.com/grajnikanth/rust_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/grajnikanth/rust_chat_server" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fgrajnikanth%2Frust_chat_server", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fgrajnikanth%2Frust_chat_server'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 9d0b7dd703746b1d3d4d9aee2f3054a598b28b39
[INFO] testing grajnikanth/rust_chat_server against try#dec9417b8611e34e787a3e4c37686b5131f9e5c5 for pr-154210-1
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fgrajnikanth%2Frust_chat_server" "/workspace/builds/worker-7-tc2/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-7-tc2/source'...
[INFO] [stderr] done.
[INFO] started tweaking git repo https://github.com/grajnikanth/rust_chat_server
[INFO] finished tweaking git repo https://github.com/grajnikanth/rust_chat_server
[INFO] tweaked toml for git repo https://github.com/grajnikanth/rust_chat_server written to /workspace/builds/worker-7-tc2/source/Cargo.toml
[INFO] validating manifest of git repo https://github.com/grajnikanth/rust_chat_server on toolchain dec9417b8611e34e787a3e4c37686b5131f9e5c5
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+dec9417b8611e34e787a3e4c37686b5131f9e5c5" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate git repo https://github.com/grajnikanth/rust_chat_server 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" "+dec9417b8611e34e787a3e4c37686b5131f9e5c5" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-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:d429b63d4308055ea97f60fb1d3dfca48854a00942f1bd2ad806beaf015945ec" "/opt/rustwide/cargo-home/bin/cargo" "+dec9417b8611e34e787a3e4c37686b5131f9e5c5" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 01b3195e33da50abb56f962712593b946adca301f1842a9b19e89b2d9dfbc52c
[INFO] running `Command { std: "docker" "start" "-a" "01b3195e33da50abb56f962712593b946adca301f1842a9b19e89b2d9dfbc52c", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "01b3195e33da50abb56f962712593b946adca301f1842a9b19e89b2d9dfbc52c", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "01b3195e33da50abb56f962712593b946adca301f1842a9b19e89b2d9dfbc52c", kill_on_drop: false }`
[INFO] [stdout] 01b3195e33da50abb56f962712593b946adca301f1842a9b19e89b2d9dfbc52c
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-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:d429b63d4308055ea97f60fb1d3dfca48854a00942f1bd2ad806beaf015945ec" "/opt/rustwide/cargo-home/bin/cargo" "+dec9417b8611e34e787a3e4c37686b5131f9e5c5" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 0f7a5da4da61d92c5512da6e25eddd1462d70303b172c50f06805db1efc4b10f
[INFO] running `Command { std: "docker" "start" "-a" "0f7a5da4da61d92c5512da6e25eddd1462d70303b172c50f06805db1efc4b10f", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.126
[INFO] [stderr]    Compiling proc-macro2 v1.0.39
[INFO] [stderr]    Compiling unicode-ident v1.0.0
[INFO] [stderr]    Compiling parking_lot_core v0.9.3
[INFO] [stderr]    Compiling log v0.4.17
[INFO] [stderr]    Compiling syn v1.0.96
[INFO] [stderr]    Compiling smallvec v1.8.0
[INFO] [stderr]    Compiling scopeguard v1.1.0
[INFO] [stderr]    Compiling memchr v2.5.0
[INFO] [stderr]    Compiling pin-project-lite v0.2.9
[INFO] [stderr]    Compiling once_cell v1.12.0
[INFO] [stderr]    Compiling bytes v1.1.0
[INFO] [stderr]    Compiling lock_api v0.4.7
[INFO] [stderr]    Compiling mio v0.8.3
[INFO] [stderr]    Compiling socket2 v0.4.4
[INFO] [stderr]    Compiling num_cpus v1.13.1
[INFO] [stderr]    Compiling signal-hook-registry v1.4.0
[INFO] [stderr]    Compiling quote v1.0.18
[INFO] [stderr]    Compiling parking_lot v0.12.1
[INFO] [stderr]    Compiling tokio-macros v1.7.0
[INFO] [stderr]    Compiling tokio v1.19.0
[INFO] [stderr]    Compiling chat-server v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused variable: `rx`
[INFO] [stdout]   --> src/main.rs:30:14
[INFO] [stdout]    |
[INFO] [stdout] 30 |     let (tx, rx) = broadcast::channel(10);
[INFO] [stdout]    |              ^^ help: if this is intentional, prefix it with an underscore: `_rx`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 13.84s
[INFO] running `Command { std: "docker" "inspect" "0f7a5da4da61d92c5512da6e25eddd1462d70303b172c50f06805db1efc4b10f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "0f7a5da4da61d92c5512da6e25eddd1462d70303b172c50f06805db1efc4b10f", kill_on_drop: false }`
[INFO] [stdout] 0f7a5da4da61d92c5512da6e25eddd1462d70303b172c50f06805db1efc4b10f
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-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:d429b63d4308055ea97f60fb1d3dfca48854a00942f1bd2ad806beaf015945ec" "/opt/rustwide/cargo-home/bin/cargo" "+dec9417b8611e34e787a3e4c37686b5131f9e5c5" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] a8e2cf8eddfb875b21b064f06526a8800f9bd3bb33d647c1b79eb2bb4e7e26be
[INFO] running `Command { std: "docker" "start" "-a" "a8e2cf8eddfb875b21b064f06526a8800f9bd3bb33d647c1b79eb2bb4e7e26be", kill_on_drop: false }`
[INFO] [stderr]    Compiling chat-server v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused variable: `rx`
[INFO] [stdout]   --> src/main.rs:30:14
[INFO] [stdout]    |
[INFO] [stdout] 30 |     let (tx, rx) = broadcast::channel(10);
[INFO] [stdout]    |              ^^ help: if this is intentional, prefix it with an underscore: `_rx`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 0.45s
[INFO] running `Command { std: "docker" "inspect" "a8e2cf8eddfb875b21b064f06526a8800f9bd3bb33d647c1b79eb2bb4e7e26be", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "a8e2cf8eddfb875b21b064f06526a8800f9bd3bb33d647c1b79eb2bb4e7e26be", kill_on_drop: false }`
[INFO] [stdout] a8e2cf8eddfb875b21b064f06526a8800f9bd3bb33d647c1b79eb2bb4e7e26be
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-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:d429b63d4308055ea97f60fb1d3dfca48854a00942f1bd2ad806beaf015945ec" "/opt/rustwide/cargo-home/bin/cargo" "+dec9417b8611e34e787a3e4c37686b5131f9e5c5" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] 0ced592f80e421eaeb6cf5f2fe1e0eab0a6db7133999d1497389ea7a04c5e674
[INFO] running `Command { std: "docker" "start" "-a" "0ced592f80e421eaeb6cf5f2fe1e0eab0a6db7133999d1497389ea7a04c5e674", kill_on_drop: false }`
[INFO] [stderr] warning: unused variable: `rx`
[INFO] [stderr]   --> src/main.rs:30:14
[INFO] [stderr]    |
[INFO] [stderr] 30 |     let (tx, rx) = broadcast::channel(10);
[INFO] [stderr]    |              ^^ help: if this is intentional, prefix it with an underscore: `_rx`
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(unused_variables)]` (part of `#[warn(unused)]`) on by default
[INFO] [stderr] 
[INFO] [stderr] warning: `chat-server` (bin "chat-server" test) generated 1 warning (run `cargo fix --bin "chat-server" -p chat-server --tests` to apply 1 suggestion)
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 0.08s
[INFO] [stderr]      Running unittests src/main.rs (/opt/rustwide/target/debug/deps/chat_server-e1632ccbba505925)
[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" "0ced592f80e421eaeb6cf5f2fe1e0eab0a6db7133999d1497389ea7a04c5e674", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "0ced592f80e421eaeb6cf5f2fe1e0eab0a6db7133999d1497389ea7a04c5e674", kill_on_drop: false }`
[INFO] [stdout] 0ced592f80e421eaeb6cf5f2fe1e0eab0a6db7133999d1497389ea7a04c5e674