[INFO] cloning repository https://github.com/CluEleSsUK/tcp-rust [INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/CluEleSsUK/tcp-rust" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FCluEleSsUK%2Ftcp-rust", kill_on_drop: false }` [INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FCluEleSsUK%2Ftcp-rust'... [INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }` [INFO] [stdout] 03f934dbb0c166b7873dba41527f8128c991c242 [INFO] checking CluEleSsUK/tcp-rust against try#3e59a8c2f14152ccc92a6c079f592dc2dc6fa93f for pr-87248 [INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FCluEleSsUK%2Ftcp-rust" "/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/CluEleSsUK/tcp-rust on toolchain 3e59a8c2f14152ccc92a6c079f592dc2dc6fa93f [INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+3e59a8c2f14152ccc92a6c079f592dc2dc6fa93f" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }` [INFO] started tweaking git repo https://github.com/CluEleSsUK/tcp-rust [INFO] finished tweaking git repo https://github.com/CluEleSsUK/tcp-rust [INFO] tweaked toml for git repo https://github.com/CluEleSsUK/tcp-rust written to /workspace/builds/worker-0/source/Cargo.toml [INFO] crate git repo https://github.com/CluEleSsUK/tcp-rust already has a lockfile, it will not be regenerated [INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+3e59a8c2f14152ccc92a6c079f592dc2dc6fa93f" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }` [INFO] [stderr] Downloading crates ... [INFO] [stderr] Downloaded tun-tap v0.1.2 [INFO] [stderr] Downloaded etherparse v0.8.3 [INFO] [stderr] Downloaded tokio-core v0.1.18 [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" "ghcr.io/rust-lang/crates-build-env/linux@sha256:34b6a614d2c27851fe6cbf88fbd1137609cefab8b10d0615aaeb6fd47975d74e" "/opt/rustwide/cargo-home/bin/cargo" "+3e59a8c2f14152ccc92a6c079f592dc2dc6fa93f" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }` [INFO] [stdout] 6ade4fcaddd743e60e54193858e15496082bce0f956ed14e46e273a930b8046c [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" "6ade4fcaddd743e60e54193858e15496082bce0f956ed14e46e273a930b8046c", kill_on_drop: false }` [INFO] running `Command { std: "docker" "inspect" "6ade4fcaddd743e60e54193858e15496082bce0f956ed14e46e273a930b8046c", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "6ade4fcaddd743e60e54193858e15496082bce0f956ed14e46e273a930b8046c", kill_on_drop: false }` [INFO] [stdout] 6ade4fcaddd743e60e54193858e15496082bce0f956ed14e46e273a930b8046c [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" "ghcr.io/rust-lang/crates-build-env/linux@sha256:34b6a614d2c27851fe6cbf88fbd1137609cefab8b10d0615aaeb6fd47975d74e" "/opt/rustwide/cargo-home/bin/cargo" "+3e59a8c2f14152ccc92a6c079f592dc2dc6fa93f" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }` [INFO] [stdout] e4444810b2189144797ee2426ae18f7c3bc84d235c5027f7e8993a2043856667 [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" "e4444810b2189144797ee2426ae18f7c3bc84d235c5027f7e8993a2043856667", kill_on_drop: false }` [INFO] [stderr] Blocking waiting for file lock on package cache [INFO] [stderr] Compiling libc v0.2.88 [INFO] [stderr] Compiling semver-parser v0.7.0 [INFO] [stderr] Checking futures v0.1.31 [INFO] [stderr] Compiling cc v1.0.67 [INFO] [stderr] Checking scoped-tls v0.1.2 [INFO] [stderr] Checking lock_api v0.3.4 [INFO] [stderr] Checking etherparse v0.8.3 [INFO] [stderr] Checking smallvec v0.6.14 [INFO] [stderr] Checking crossbeam-queue v0.2.3 [INFO] [stderr] Compiling semver v0.9.0 [INFO] [stderr] Compiling rustc_version v0.2.3 [INFO] [stderr] Compiling parking_lot_core v0.6.2 [INFO] [stderr] Compiling parking_lot v0.9.0 [INFO] [stderr] Compiling tun-tap v0.1.2 [INFO] [stderr] Checking iovec v0.1.4 [INFO] [stderr] Checking net2 v0.2.37 [INFO] [stderr] Checking num_cpus v1.13.0 [INFO] [stderr] Checking bytes v0.4.12 [INFO] [stderr] Checking tokio-executor v0.1.10 [INFO] [stderr] Checking tokio-sync v0.1.8 [INFO] [stderr] Checking mio v0.6.23 [INFO] [stderr] Checking tokio-threadpool v0.1.18 [INFO] [stderr] Checking tokio-current-thread v0.1.7 [INFO] [stderr] Checking tokio-timer v0.2.13 [INFO] [stderr] Checking tokio-io v0.1.13 [INFO] [stderr] Checking mio-uds v0.6.8 [INFO] [stderr] Checking tokio-reactor v0.1.12 [INFO] [stderr] Checking tokio-codec v0.1.2 [INFO] [stderr] Checking tokio-fs v0.1.7 [INFO] [stderr] Checking tokio-udp v0.1.6 [INFO] [stderr] Checking tokio-uds v0.2.7 [INFO] [stderr] Checking tokio-tcp v0.1.4 [INFO] [stderr] Checking tokio v0.1.22 [INFO] [stderr] Checking tokio-core v0.1.18 [INFO] [stderr] Checking tcp v0.1.0 (/opt/rustwide/workdir) [INFO] [stdout] warning: unreachable expression [INFO] [stdout] --> src/main.rs:33:5 [INFO] [stdout] | [INFO] [stdout] 21 | / loop { [INFO] [stdout] 22 | | let bytes_read = nic.recv(&mut buf[..])?; [INFO] [stdout] 23 | | let packet = Packet::new(buf, bytes_read); [INFO] [stdout] 24 | | [INFO] [stdout] ... | [INFO] [stdout] 31 | | } [INFO] [stdout] 32 | | } [INFO] [stdout] | |_____- any code following this expression is unreachable [INFO] [stdout] 33 | Result::Ok(()) [INFO] [stdout] | ^^^^^^^^^^^^^^ unreachable expression [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unreachable_code)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unreachable call [INFO] [stdout] --> src/state.rs:36:38 [INFO] [stdout] | [INFO] [stdout] 36 | TcpState::SynReceived => Result::Err(unimplemented!()), [INFO] [stdout] | ^^^^^^^^^^^ ---------------- any code following this expression is unreachable [INFO] [stdout] | | [INFO] [stdout] | unreachable call [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unreachable call [INFO] [stdout] --> src/state.rs:37:18 [INFO] [stdout] | [INFO] [stdout] 37 | _ => Result::Err(unimplemented!()), [INFO] [stdout] | ^^^^^^^^^^^ ---------------- any code following this expression is unreachable [INFO] [stdout] | | [INFO] [stdout] | unreachable call [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: variant is never constructed: `Closed` [INFO] [stdout] --> src/state.rs:12:5 [INFO] [stdout] | [INFO] [stdout] 12 | Closed, [INFO] [stdout] | ^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(dead_code)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: variant is never constructed: `SynReceived` [INFO] [stdout] --> src/state.rs:14:5 [INFO] [stdout] | [INFO] [stdout] 14 | SynReceived, [INFO] [stdout] | ^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: variant is never constructed: `Established` [INFO] [stdout] --> src/state.rs:15:5 [INFO] [stdout] | [INFO] [stdout] 15 | Established, [INFO] [stdout] | ^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unreachable expression [INFO] [stdout] --> src/main.rs:33:5 [INFO] [stdout] | [INFO] [stdout] 21 | / loop { [INFO] [stdout] 22 | | let bytes_read = nic.recv(&mut buf[..])?; [INFO] [stdout] 23 | | let packet = Packet::new(buf, bytes_read); [INFO] [stdout] 24 | | [INFO] [stdout] ... | [INFO] [stdout] 31 | | } [INFO] [stdout] 32 | | } [INFO] [stdout] | |_____- any code following this expression is unreachable [INFO] [stdout] 33 | Result::Ok(()) [INFO] [stdout] | ^^^^^^^^^^^^^^ unreachable expression [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unreachable_code)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: 6 warnings emitted [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unreachable call [INFO] [stdout] --> src/state.rs:36:38 [INFO] [stdout] | [INFO] [stdout] 36 | TcpState::SynReceived => Result::Err(unimplemented!()), [INFO] [stdout] | ^^^^^^^^^^^ ---------------- any code following this expression is unreachable [INFO] [stdout] | | [INFO] [stdout] | unreachable call [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unreachable call [INFO] [stdout] --> src/state.rs:37:18 [INFO] [stdout] | [INFO] [stdout] 37 | _ => Result::Err(unimplemented!()), [INFO] [stdout] | ^^^^^^^^^^^ ---------------- any code following this expression is unreachable [INFO] [stdout] | | [INFO] [stdout] | unreachable call [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: variant is never constructed: `Closed` [INFO] [stdout] --> src/state.rs:12:5 [INFO] [stdout] | [INFO] [stdout] 12 | Closed, [INFO] [stdout] | ^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(dead_code)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: variant is never constructed: `SynReceived` [INFO] [stdout] --> src/state.rs:14:5 [INFO] [stdout] | [INFO] [stdout] 14 | SynReceived, [INFO] [stdout] | ^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: variant is never constructed: `Established` [INFO] [stdout] --> src/state.rs:15:5 [INFO] [stdout] | [INFO] [stdout] 15 | Established, [INFO] [stdout] | ^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: 6 warnings emitted [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] Finished dev [unoptimized + debuginfo] target(s) in 24.19s [INFO] running `Command { std: "docker" "inspect" "e4444810b2189144797ee2426ae18f7c3bc84d235c5027f7e8993a2043856667", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "e4444810b2189144797ee2426ae18f7c3bc84d235c5027f7e8993a2043856667", kill_on_drop: false }` [INFO] [stdout] e4444810b2189144797ee2426ae18f7c3bc84d235c5027f7e8993a2043856667