[INFO] cloning repository https://github.com/izissise/rustchat
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/izissise/rustchat" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fizissise%2Frustchat", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fizissise%2Frustchat'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] db94a8af0dd1d9df974a62a7d1ff4142d6e4729e
[INFO] checking izissise/rustchat against master#ceab6128fa48a616bfd3e3adf4bc80133b8ee223 for no-never-type-fallback
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fizissise%2Frustchat" "/workspace/builds/worker-3-tc1/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-3-tc1/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/izissise/rustchat on toolchain ceab6128fa48a616bfd3e3adf4bc80133b8ee223
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+ceab6128fa48a616bfd3e3adf4bc80133b8ee223" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/izissise/rustchat
[INFO] finished tweaking git repo https://github.com/izissise/rustchat
[INFO] tweaked toml for git repo https://github.com/izissise/rustchat written to /workspace/builds/worker-3-tc1/source/Cargo.toml
[INFO] crate git repo https://github.com/izissise/rustchat 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" "+ceab6128fa48a616bfd3e3adf4bc80133b8ee223" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded tokio-reactor v0.1.1
[INFO] [stderr]   Downloaded cfg-if v0.1.3
[INFO] [stderr]   Downloaded log v0.4.1
[INFO] [stderr]   Downloaded tokio v0.1.6
[INFO] [stderr]   Downloaded memoffset v0.2.1
[INFO] [stderr]   Downloaded tokio-fs v0.1.0
[INFO] [stderr]   Downloaded byteorder v1.2.2
[INFO] [stderr]   Downloaded crossbeam-deque v0.3.1
[INFO] [stderr]   Downloaded bitflags v1.0.3
[INFO] [stderr]   Downloaded lazy_static v1.0.0
[INFO] [stderr]   Downloaded tokio-tcp v0.1.0
[INFO] [stderr]   Downloaded arrayvec v0.4.7
[INFO] [stderr]   Downloaded crossbeam-epoch v0.4.1
[INFO] [stderr]   Downloaded mio v0.6.14
[INFO] [stderr]   Downloaded libc v0.2.40
[INFO] [stderr]   Downloaded futures v0.1.21
[INFO] [stderr]   Downloaded rand v0.4.2
[INFO] [stderr]   Downloaded tokio-threadpool v0.1.3
[INFO] [stderr]   Downloaded lazycell v0.6.0
[INFO] [stderr]   Downloaded net2 v0.2.32
[INFO] [stderr]   Downloaded crossbeam-utils v0.3.2
[INFO] [stderr]   Downloaded num_cpus v1.8.0
[INFO] [stderr]   Downloaded tokio-timer v0.2.3
[INFO] [stderr]   Downloaded iovec v0.1.2
[INFO] [stderr]   Downloaded tokio-executor v0.1.2
[INFO] [stderr]   Downloaded tokio-io v0.1.6
[INFO] [stderr]   Downloaded bytes v0.4.7
[INFO] [stderr]   Downloaded tokio-udp v0.1.0
[INFO] [stderr]   Downloaded winapi v0.3.4
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc1/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@sha256:2788e3201cd34a07e3172128adcd8b3090168a8e3bcc40d7c032b9dda1df7d1c" "/opt/rustwide/cargo-home/bin/cargo" "+ceab6128fa48a616bfd3e3adf4bc80133b8ee223" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 1bc0c5a1ae74d9becf2c954d25461ba742c453180280c2c582740f0368f844f5
[INFO] running `Command { std: "docker" "start" "-a" "1bc0c5a1ae74d9becf2c954d25461ba742c453180280c2c582740f0368f844f5", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "1bc0c5a1ae74d9becf2c954d25461ba742c453180280c2c582740f0368f844f5", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "1bc0c5a1ae74d9becf2c954d25461ba742c453180280c2c582740f0368f844f5", kill_on_drop: false }`
[INFO] [stdout] 1bc0c5a1ae74d9becf2c954d25461ba742c453180280c2c582740f0368f844f5
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc1/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@sha256:2788e3201cd34a07e3172128adcd8b3090168a8e3bcc40d7c032b9dda1df7d1c" "/opt/rustwide/cargo-home/bin/cargo" "+ceab6128fa48a616bfd3e3adf4bc80133b8ee223" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 16271f74b06c90e34f8d3ebf60f0ee75e77e736995e73ca0cd18d9065bfd256b
[INFO] running `Command { std: "docker" "start" "-a" "16271f74b06c90e34f8d3ebf60f0ee75e77e736995e73ca0cd18d9065bfd256b", kill_on_drop: false }`
[INFO] [stderr]     Checking libc v0.2.40
[INFO] [stderr]     Checking cfg-if v0.1.3
[INFO] [stderr]     Checking futures v0.1.21
[INFO] [stderr]     Checking byteorder v1.2.2
[INFO] [stderr]     Checking nodrop v0.1.12
[INFO] [stderr]     Checking slab v0.4.0
[INFO] [stderr]     Checking memoffset v0.2.1
[INFO] [stderr]     Checking lazycell v0.6.0
[INFO] [stderr]     Checking scopeguard v0.3.3
[INFO] [stderr]     Checking lazy_static v1.0.0
[INFO] [stderr]     Checking log v0.4.1
[INFO] [stderr]     Checking crossbeam-utils v0.3.2
[INFO] [stderr]     Checking arrayvec v0.4.7
[INFO] [stderr]     Checking crossbeam-epoch v0.4.1
[INFO] [stderr]     Checking iovec v0.1.2
[INFO] [stderr]     Checking net2 v0.2.32
[INFO] [stderr]     Checking rand v0.4.2
[INFO] [stderr]     Checking num_cpus v1.8.0
[INFO] [stderr]     Checking bytes v0.4.7
[INFO] [stderr]     Checking crossbeam-deque v0.3.1
[INFO] [stderr]     Checking mio v0.6.14
[INFO] [stderr]     Checking tokio-executor v0.1.2
[INFO] [stderr]     Checking tokio-io v0.1.6
[INFO] [stderr]     Checking tokio-threadpool v0.1.3
[INFO] [stderr]     Checking tokio-timer v0.2.3
[INFO] [stderr]     Checking tokio-reactor v0.1.1
[INFO] [stderr]     Checking tokio-udp v0.1.0
[INFO] [stderr]     Checking tokio-tcp v0.1.0
[INFO] [stderr]     Checking tokio-fs v0.1.0
[INFO] [stderr]     Checking tokio v0.1.6
[INFO] [stderr]     Checking rustchat v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: field `clients` is never read
[INFO] [stdout]   --> src/main.rs:10:5
[INFO] [stdout]    |
[INFO] [stdout] 8  | struct Server {
[INFO] [stdout]    |        ------ field in this struct
[INFO] [stdout] 9  |     lst_socks: Vec<tokio::net::TcpListener>,
[INFO] [stdout] 10 |     clients: Vec<tokio::net::TcpStream>,
[INFO] [stdout]    |     ^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `clients` is never read
[INFO] [stdout]   --> src/main.rs:10:5
[INFO] [stdout]    |
[INFO] [stdout] 8  | struct Server {
[INFO] [stdout]    |        ------ field in this struct
[INFO] [stdout] 9  |     lst_socks: Vec<tokio::net::TcpListener>,
[INFO] [stdout] 10 |     clients: Vec<tokio::net::TcpStream>,
[INFO] [stdout]    |     ^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 1.31s
[INFO] running `Command { std: "docker" "inspect" "16271f74b06c90e34f8d3ebf60f0ee75e77e736995e73ca0cd18d9065bfd256b", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "16271f74b06c90e34f8d3ebf60f0ee75e77e736995e73ca0cd18d9065bfd256b", kill_on_drop: false }`
[INFO] [stdout] 16271f74b06c90e34f8d3ebf60f0ee75e77e736995e73ca0cd18d9065bfd256b