[INFO] cloning repository https://github.com/xobs/websocket-server-example
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/xobs/websocket-server-example" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fxobs%2Fwebsocket-server-example", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fxobs%2Fwebsocket-server-example'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 25c5ee6a1481b5dba626b8b9f99de5cd7023ddd1
[INFO] checking xobs/websocket-server-example against master#ceab6128fa48a616bfd3e3adf4bc80133b8ee223 for no-never-type-fallback
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fxobs%2Fwebsocket-server-example" "/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/xobs/websocket-server-example 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/xobs/websocket-server-example
[INFO] finished tweaking git repo https://github.com/xobs/websocket-server-example
[INFO] tweaked toml for git repo https://github.com/xobs/websocket-server-example written to /workspace/builds/worker-3-tc1/source/Cargo.toml
[INFO] crate git repo https://github.com/xobs/websocket-server-example 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]     Updating crates.io index
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded failure v0.1.8
[INFO] [stderr]   Downloaded which v2.0.1
[INFO] [stderr]   Downloaded xous v0.9.7
[INFO] [stderr]   Downloaded backtrace v0.3.65
[INFO] [stderr]   Downloaded object v0.28.3
[INFO] [stderr]   Downloaded gimli v0.26.1
[INFO] [stderr]   Downloaded xous-macros v0.1.0
[INFO] [stderr]   Downloaded debug-here v0.2.2
[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] cdc7e18cf2e382fbc75f6e6881019733c8c9310a1df97bc318e01196201f544f
[INFO] running `Command { std: "docker" "start" "-a" "cdc7e18cf2e382fbc75f6e6881019733c8c9310a1df97bc318e01196201f544f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "cdc7e18cf2e382fbc75f6e6881019733c8c9310a1df97bc318e01196201f544f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "cdc7e18cf2e382fbc75f6e6881019733c8c9310a1df97bc318e01196201f544f", kill_on_drop: false }`
[INFO] [stdout] cdc7e18cf2e382fbc75f6e6881019733c8c9310a1df97bc318e01196201f544f
[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] 48e2924deb8b72392668c68e6d9a25e389c0018956ba456c189343b146daf2f6
[INFO] running `Command { std: "docker" "start" "-a" "48e2924deb8b72392668c68e6d9a25e389c0018956ba456c189343b146daf2f6", kill_on_drop: false }`
[INFO] [stderr]    Compiling memchr v2.4.1
[INFO] [stderr]    Compiling cc v1.0.73
[INFO] [stderr]    Compiling libc v0.2.124
[INFO] [stderr]     Checking gimli v0.26.1
[INFO] [stderr]    Compiling proc-macro2 v1.0.37
[INFO] [stderr]    Compiling rand_core v0.5.1
[INFO] [stderr]    Compiling unicode-xid v0.2.2
[INFO] [stderr]     Checking rustc-demangle v0.1.21
[INFO] [stderr]    Compiling ppv-lite86 v0.2.16
[INFO] [stderr]    Compiling syn v1.0.91
[INFO] [stderr]    Compiling xous v0.9.7
[INFO] [stderr]     Checking hex v0.4.3
[INFO] [stderr]     Checking miniz_oxide v0.5.1
[INFO] [stderr]    Compiling rand_pcg v0.2.1
[INFO] [stderr]    Compiling rand_chacha v0.2.2
[INFO] [stderr]    Compiling rand v0.7.3
[INFO] [stderr]     Checking object v0.28.3
[INFO] [stderr]    Compiling quote v1.0.18
[INFO] [stderr]    Compiling backtrace v0.3.65
[INFO] [stderr]     Checking addr2line v0.17.0
[INFO] [stderr]     Checking failure v0.1.8
[INFO] [stderr]     Checking which v2.0.1
[INFO] [stderr]     Checking debug-here v0.2.2
[INFO] [stderr]    Compiling xous-macros v0.1.0
[INFO] [stderr]     Checking websocket-demo v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: fields `receivers` and `cid` are never read
[INFO] [stdout]    --> src/lib.rs:116:5
[INFO] [stdout]     |
[INFO] [stdout] 115 | pub struct WebSocketService {
[INFO] [stdout]     |            ---------------- fields in this struct
[INFO] [stdout] 116 |     receivers: Arc<Mutex<HashMap<WebSocketFd, WebSocketReceiver>>>,
[INFO] [stdout]     |     ^^^^^^^^^
[INFO] [stdout] 117 |     cid: xous::CID,
[INFO] [stdout]     |     ^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `WebSocketService` has a derived impl for the trait `Clone`, but this is intentionally ignored during dead code analysis
[INFO] [stdout]     = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `fd` is never read
[INFO] [stdout]    --> src/lib.rs:135:5
[INFO] [stdout]     |
[INFO] [stdout] 134 | pub struct WebSocketStream {
[INFO] [stdout]     |            --------------- field in this struct
[INFO] [stdout] 135 |     fd: WebSocketFd,
[INFO] [stdout]     |     ^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: fields `receivers` and `cid` are never read
[INFO] [stdout]    --> src/lib.rs:116:5
[INFO] [stdout]     |
[INFO] [stdout] 115 | pub struct WebSocketService {
[INFO] [stdout]     |            ---------------- fields in this struct
[INFO] [stdout] 116 |     receivers: Arc<Mutex<HashMap<WebSocketFd, WebSocketReceiver>>>,
[INFO] [stdout]     |     ^^^^^^^^^
[INFO] [stdout] 117 |     cid: xous::CID,
[INFO] [stdout]     |     ^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `WebSocketService` has a derived impl for the trait `Clone`, but this is intentionally ignored during dead code analysis
[INFO] [stdout]     = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `fd` is never read
[INFO] [stdout]    --> src/lib.rs:135:5
[INFO] [stdout]     |
[INFO] [stdout] 134 | pub struct WebSocketStream {
[INFO] [stdout]     |            --------------- field in this struct
[INFO] [stdout] 135 |     fd: WebSocketFd,
[INFO] [stdout]     |     ^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 2 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 2 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 3.68s
[INFO] running `Command { std: "docker" "inspect" "48e2924deb8b72392668c68e6d9a25e389c0018956ba456c189343b146daf2f6", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "48e2924deb8b72392668c68e6d9a25e389c0018956ba456c189343b146daf2f6", kill_on_drop: false }`
[INFO] [stdout] 48e2924deb8b72392668c68e6d9a25e389c0018956ba456c189343b146daf2f6