[INFO] cloning repository https://github.com/mikewallker/asynchronous-tutorial-broadcast [INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/mikewallker/asynchronous-tutorial-broadcast" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fmikewallker%2Fasynchronous-tutorial-broadcast", kill_on_drop: false }` [INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fmikewallker%2Fasynchronous-tutorial-broadcast'... [INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }` [INFO] [stdout] e906c8e5ea353e1d01afc458a38b0e9ff0921fcb [INFO] checking mikewallker/asynchronous-tutorial-broadcast against master#42f4793e5a514858221b07ac379029d90353913e for pr-148952 [INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fmikewallker%2Fasynchronous-tutorial-broadcast" "/workspace/builds/worker-0-tc1/source", kill_on_drop: false }` [INFO] [stderr] Cloning into '/workspace/builds/worker-0-tc1/source'... [INFO] [stderr] done. [INFO] started tweaking git repo https://github.com/mikewallker/asynchronous-tutorial-broadcast [INFO] finished tweaking git repo https://github.com/mikewallker/asynchronous-tutorial-broadcast [INFO] tweaked toml for git repo https://github.com/mikewallker/asynchronous-tutorial-broadcast written to /workspace/builds/worker-0-tc1/source/Cargo.toml [INFO] validating manifest of git repo https://github.com/mikewallker/asynchronous-tutorial-broadcast on toolchain 42f4793e5a514858221b07ac379029d90353913e [INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+42f4793e5a514858221b07ac379029d90353913e" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }` [INFO] crate git repo https://github.com/mikewallker/asynchronous-tutorial-broadcast 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" "+42f4793e5a514858221b07ac379029d90353913e" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }` [INFO] [stderr] Downloading crates ... [INFO] [stderr] Downloaded tokio-websockets v0.11.4 [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-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@sha256:4848fb76d95f26979359cc7e45710b1dbc8f3acb7aeedee7c460d7702230f228" "/opt/rustwide/cargo-home/bin/cargo" "+42f4793e5a514858221b07ac379029d90353913e" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }` [INFO] [stdout] a2b2091ab62f5b5bdfa6cb97b6214700574720a740ebb1dad51525fc3c2f0b82 [INFO] running `Command { std: "docker" "start" "-a" "a2b2091ab62f5b5bdfa6cb97b6214700574720a740ebb1dad51525fc3c2f0b82", kill_on_drop: false }` [INFO] running `Command { std: "docker" "inspect" "a2b2091ab62f5b5bdfa6cb97b6214700574720a740ebb1dad51525fc3c2f0b82", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "a2b2091ab62f5b5bdfa6cb97b6214700574720a740ebb1dad51525fc3c2f0b82", kill_on_drop: false }` [INFO] [stdout] a2b2091ab62f5b5bdfa6cb97b6214700574720a740ebb1dad51525fc3c2f0b82 [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-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@sha256:4848fb76d95f26979359cc7e45710b1dbc8f3acb7aeedee7c460d7702230f228" "/opt/rustwide/cargo-home/bin/cargo" "+42f4793e5a514858221b07ac379029d90353913e" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }` [INFO] [stdout] 891dcbdfa0721f5267db8bd8ee769dccc5ddfadb9429b59759f76e1bdb35ac32 [INFO] running `Command { std: "docker" "start" "-a" "891dcbdfa0721f5267db8bd8ee769dccc5ddfadb9429b59759f76e1bdb35ac32", kill_on_drop: false }` [INFO] [stderr] Checking smallvec v1.15.0 [INFO] [stderr] Checking mio v1.0.3 [INFO] [stderr] Checking signal-hook-registry v1.4.5 [INFO] [stderr] Checking socket2 v0.5.9 [INFO] [stderr] Compiling tokio-macros v2.5.0 [INFO] [stderr] Compiling futures-macro v0.3.31 [INFO] [stderr] Checking fastrand v2.3.0 [INFO] [stderr] Checking simdutf8 v0.1.5 [INFO] [stderr] Checking sha1_smol v1.0.1 [INFO] [stderr] Checking parking_lot_core v0.9.10 [INFO] [stderr] Checking parking_lot v0.12.3 [INFO] [stderr] Checking tokio v1.45.0 [INFO] [stderr] Checking futures-util v0.3.31 [INFO] [stderr] Checking tokio-util v0.7.15 [INFO] [stderr] Checking tokio-websockets v0.11.4 [INFO] [stderr] Checking chat-async v0.1.0 (/opt/rustwide/workdir) [INFO] [stdout] warning: unreachable pattern [INFO] [stdout] --> src/bin/client.rs:45:21 [INFO] [stdout] | [INFO] [stdout] 39 | Some(Ok(msg)) => { [INFO] [stdout] | ------------- matches all the relevant values [INFO] [stdout] ... [INFO] [stdout] 45 | Some(Ok(msg)) if msg.is_close() => { [INFO] [stdout] | ^^^^^^^^^^^^^ no value can reach this [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unreachable_patterns)]` (part of `#[warn(unused)]`) on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unreachable pattern [INFO] [stdout] --> src/bin/client.rs:57:21 [INFO] [stdout] | [INFO] [stdout] 57 | _ => {} [INFO] [stdout] | ^ no value can reach this [INFO] [stdout] | [INFO] [stdout] note: multiple earlier patterns match some of the same values [INFO] [stdout] --> src/bin/client.rs:57:21 [INFO] [stdout] | [INFO] [stdout] 39 | Some(Ok(msg)) => { [INFO] [stdout] | ------------- matches some of the same values [INFO] [stdout] ... [INFO] [stdout] 49 | None => { [INFO] [stdout] | ---- matches some of the same values [INFO] [stdout] ... [INFO] [stdout] 53 | Some(Err(e)) => { [INFO] [stdout] | ------------ matches some of the same values [INFO] [stdout] ... [INFO] [stdout] 57 | _ => {} [INFO] [stdout] | ^ collectively making this unreachable [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unreachable pattern [INFO] [stdout] --> src/bin/client.rs:45:21 [INFO] [stdout] | [INFO] [stdout] 39 | Some(Ok(msg)) => { [INFO] [stdout] | ------------- matches all the relevant values [INFO] [stdout] ... [INFO] [stdout] 45 | Some(Ok(msg)) if msg.is_close() => { [INFO] [stdout] | ^^^^^^^^^^^^^ no value can reach this [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unreachable_patterns)]` (part of `#[warn(unused)]`) on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unreachable pattern [INFO] [stdout] --> src/bin/client.rs:57:21 [INFO] [stdout] | [INFO] [stdout] 57 | _ => {} [INFO] [stdout] | ^ no value can reach this [INFO] [stdout] | [INFO] [stdout] note: multiple earlier patterns match some of the same values [INFO] [stdout] --> src/bin/client.rs:57:21 [INFO] [stdout] | [INFO] [stdout] 39 | Some(Ok(msg)) => { [INFO] [stdout] | ------------- matches some of the same values [INFO] [stdout] ... [INFO] [stdout] 49 | None => { [INFO] [stdout] | ---- matches some of the same values [INFO] [stdout] ... [INFO] [stdout] 53 | Some(Err(e)) => { [INFO] [stdout] | ------------ matches some of the same values [INFO] [stdout] ... [INFO] [stdout] 57 | _ => {} [INFO] [stdout] | ^ collectively making this unreachable [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] Finished `dev` profile [unoptimized + debuginfo] target(s) in 12.32s [INFO] running `Command { std: "docker" "inspect" "891dcbdfa0721f5267db8bd8ee769dccc5ddfadb9429b59759f76e1bdb35ac32", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "891dcbdfa0721f5267db8bd8ee769dccc5ddfadb9429b59759f76e1bdb35ac32", kill_on_drop: false }` [INFO] [stdout] 891dcbdfa0721f5267db8bd8ee769dccc5ddfadb9429b59759f76e1bdb35ac32