[INFO] fetching crate wsio-server 0.12.1...
[INFO] testing wsio-server-0.12.1 against beta-2026-04-21 for beta-1.96-2
[INFO] extracting crate wsio-server 0.12.1 into /workspace/builds/worker-1-tc2/source
[INFO] started tweaking crates.io crate wsio-server 0.12.1
[INFO] finished tweaking crates.io crate wsio-server 0.12.1
[INFO] tweaked toml for crates.io crate wsio-server 0.12.1 written to /workspace/builds/worker-1-tc2/source/Cargo.toml
[INFO] validating manifest of crates.io crate wsio-server 0.12.1 on toolchain beta-2026-04-21
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+beta-2026-04-21" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate crates.io crate wsio-server 0.12.1 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" "+beta-2026-04-21" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
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[INFO] running `Command { std: "docker" "start" "-a" "97c5126df0db28c3196fe9849f07f986846e02e5bfea5f156988dd59ff8f706e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "97c5126df0db28c3196fe9849f07f986846e02e5bfea5f156988dd59ff8f706e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "97c5126df0db28c3196fe9849f07f986846e02e5bfea5f156988dd59ff8f706e", kill_on_drop: false }`
[INFO] [stdout] 97c5126df0db28c3196fe9849f07f986846e02e5bfea5f156988dd59ff8f706e
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-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=warn" "-e" "RUSTDOCFLAGS=--cap-lints=warn" "-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" "+beta-2026-04-21" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 836f0a72e537eba7ce3919591170c696c13f17161f417c3d807892f99f904b2d
[INFO] running `Command { std: "docker" "start" "-a" "836f0a72e537eba7ce3919591170c696c13f17161f417c3d807892f99f904b2d", kill_on_drop: false }`
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[INFO] [stderr]    Compiling idna v1.1.0
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[INFO] [stderr]    Compiling wsio-core v0.12.4
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[INFO] [stderr]    Compiling wsio-server v0.12.1 (/opt/rustwide/workdir)
[INFO] [stdout] warning: field `init_timeout_task` is never read
[INFO] [stdout]   --> src/connection/mod.rs:95:5
[INFO] [stdout]    |
[INFO] [stdout] 88 | pub struct WsIoServerConnection {
[INFO] [stdout]    |            -------------------- field in this struct
[INFO] [stdout] ...
[INFO] [stdout] 95 |     init_timeout_task: Mutex<Option<JoinHandle<()>>>,
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated items `new`, `handle_event_packet`, `handle_init_packet`, `cleanup`, `handle_incoming_packet`, and `init` are never used
[INFO] [stdout]    --> src/connection/mod.rs:113:19
[INFO] [stdout]     |
[INFO] [stdout] 111 | impl WsIoServerConnection {
[INFO] [stdout]     | ------------------------- associated items in this implementation
[INFO] [stdout] 112 |     #[inline]
[INFO] [stdout] 113 |     pub(crate) fn new(
[INFO] [stdout]     |                   ^^^
[INFO] [stdout] ...
[INFO] [stdout] 142 |     fn handle_event_packet(self: &Arc<Self>, event: &str, packet_data: Option<Vec<u8>>) -> Result<()> {
[INFO] [stdout]     |        ^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 154 |     async fn handle_init_packet(self: &Arc<Self>, packet_data: Option<&[u8]>) -> Result<()> {
[INFO] [stdout]     |              ^^^^^^^^^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 226 |     pub(crate) async fn cleanup(self: &Arc<Self>) {
[INFO] [stdout]     |                         ^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 280 |     pub(crate) async fn handle_incoming_packet(self: &Arc<Self>, encoded_packet: &[u8]) -> Result<()> {
[INFO] [stdout]     |                         ^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 300 |     pub(crate) async fn init(self: &Arc<Self>) -> Result<()> {
[INFO] [stdout]     |                         ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: static `NEXT_CONNECTION_ID` is never used
[INFO] [stdout]    --> src/connection/mod.rs:456:8
[INFO] [stdout]     |
[INFO] [stdout] 456 | static NEXT_CONNECTION_ID: LazyLock<AtomicU64> = LazyLock::new(|| AtomicU64::new(0));
[INFO] [stdout]     |        ^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: methods `handle_upgraded_request`, `handle_on_upgrade_request`, `insert_connection`, and `remove_connection` are never used
[INFO] [stdout]    --> src/namespace/mod.rs:96:14
[INFO] [stdout]     |
[INFO] [stdout]  82 | impl WsIoServerNamespace {
[INFO] [stdout]     | ------------------------ methods in this implementation
[INFO] [stdout] ...
[INFO] [stdout]  96 |     async fn handle_upgraded_request(
[INFO] [stdout]     |              ^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 202 |     pub(crate) async fn handle_on_upgrade_request(
[INFO] [stdout]     |                         ^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 217 |     pub(crate) fn insert_connection(&self, connection: Arc<WsIoServerConnection>) {
[INFO] [stdout]     |                   ^^^^^^^^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 228 |     pub(crate) fn remove_connection(&self, id: u64) {
[INFO] [stdout]     |                   ^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `check_header_value` is never used
[INFO] [stdout]   --> src/request.rs:25:4
[INFO] [stdout]    |
[INFO] [stdout] 25 | fn check_header_value<ReqBody>(request: &Request<ReqBody>, name: HeaderName, expected_value: &[u8]) -> bool {
[INFO] [stdout]    |    ^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `dispatch_request` is never used
[INFO] [stdout]   --> src/request.rs:32:21
[INFO] [stdout]    |
[INFO] [stdout] 32 | pub(super) async fn dispatch_request<ReqBody, ResBody: Default, E: Send>(
[INFO] [stdout]    |                     ^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `respond` is never used
[INFO] [stdout]   --> src/request.rs:91:4
[INFO] [stdout]    |
[INFO] [stdout] 91 | fn respond<ResBody: Default, E: Send>(status: StatusCode) -> Result<Response<ResBody>, E> {
[INFO] [stdout]    |    ^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: methods `insert_connection_id` and `remove_connection_id` are never used
[INFO] [stdout]    --> src/runtime.rs:102:19
[INFO] [stdout]     |
[INFO] [stdout]  46 | impl WsIoServerRuntime {
[INFO] [stdout]     | ---------------------- methods in this implementation
[INFO] [stdout] ...
[INFO] [stdout] 102 |     pub(crate) fn insert_connection_id(&self, id: u64) {
[INFO] [stdout]     |                   ^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 131 |     pub(crate) fn remove_connection_id(&self, id: u64) {
[INFO] [stdout]     |                   ^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 17.26s
[INFO] running `Command { std: "docker" "inspect" "836f0a72e537eba7ce3919591170c696c13f17161f417c3d807892f99f904b2d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "836f0a72e537eba7ce3919591170c696c13f17161f417c3d807892f99f904b2d", kill_on_drop: false }`
[INFO] [stdout] 836f0a72e537eba7ce3919591170c696c13f17161f417c3d807892f99f904b2d
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-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=warn" "-e" "RUSTDOCFLAGS=--cap-lints=warn" "-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" "+beta-2026-04-21" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 89ee4d85d3b325e099a09af2b4b522d10e12d4fcb6e63905baf6cb9a43669b27
[INFO] running `Command { std: "docker" "start" "-a" "89ee4d85d3b325e099a09af2b4b522d10e12d4fcb6e63905baf6cb9a43669b27", kill_on_drop: false }`
[INFO] [stderr]    Compiling socket2 v0.6.3
[INFO] [stderr]    Compiling mio v1.1.1
[INFO] [stderr]    Compiling parking_lot_core v0.9.12
[INFO] [stderr]    Compiling serde_json v1.0.149
[INFO] [stderr]    Compiling serde v1.0.228
[INFO] [stderr]    Compiling futures-channel v0.3.32
[INFO] [stderr]    Compiling tracing v0.1.44
[INFO] [stderr]    Compiling tungstenite v0.28.0
[INFO] [stderr]    Compiling http-body-util v0.1.3
[INFO] [stderr]    Compiling serde_path_to_error v0.1.20
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[INFO] [stderr]    Compiling idna_adapter v1.2.1
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[INFO] [stderr]    Compiling idna v1.1.0
[INFO] [stderr]    Compiling serde_urlencoded v0.7.1
[INFO] [stderr]    Compiling url v2.5.8
[INFO] [stderr]    Compiling hyper v1.8.1
[INFO] [stderr]    Compiling tokio-util v0.7.18
[INFO] [stderr]    Compiling tokio-tungstenite v0.28.0
[INFO] [stderr]    Compiling tower v0.5.3
[INFO] [stderr]    Compiling tokio-tungstenite v0.29.0
[INFO] [stderr]    Compiling wsio-core v0.12.4
[INFO] [stderr]    Compiling hyper-util v0.1.20
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[INFO] [stderr]    Compiling wsio-server v0.12.1 (/opt/rustwide/workdir)
[INFO] [stdout] warning: field `init_timeout_task` is never read
[INFO] [stdout]   --> src/connection/mod.rs:95:5
[INFO] [stdout]    |
[INFO] [stdout] 88 | pub struct WsIoServerConnection {
[INFO] [stdout]    |            -------------------- field in this struct
[INFO] [stdout] ...
[INFO] [stdout] 95 |     init_timeout_task: Mutex<Option<JoinHandle<()>>>,
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated items `new`, `handle_event_packet`, `handle_init_packet`, `cleanup`, `handle_incoming_packet`, and `init` are never used
[INFO] [stdout]    --> src/connection/mod.rs:113:19
[INFO] [stdout]     |
[INFO] [stdout] 111 | impl WsIoServerConnection {
[INFO] [stdout]     | ------------------------- associated items in this implementation
[INFO] [stdout] 112 |     #[inline]
[INFO] [stdout] 113 |     pub(crate) fn new(
[INFO] [stdout]     |                   ^^^
[INFO] [stdout] ...
[INFO] [stdout] 142 |     fn handle_event_packet(self: &Arc<Self>, event: &str, packet_data: Option<Vec<u8>>) -> Result<()> {
[INFO] [stdout]     |        ^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 154 |     async fn handle_init_packet(self: &Arc<Self>, packet_data: Option<&[u8]>) -> Result<()> {
[INFO] [stdout]     |              ^^^^^^^^^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 226 |     pub(crate) async fn cleanup(self: &Arc<Self>) {
[INFO] [stdout]     |                         ^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 280 |     pub(crate) async fn handle_incoming_packet(self: &Arc<Self>, encoded_packet: &[u8]) -> Result<()> {
[INFO] [stdout]     |                         ^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 300 |     pub(crate) async fn init(self: &Arc<Self>) -> Result<()> {
[INFO] [stdout]     |                         ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: static `NEXT_CONNECTION_ID` is never used
[INFO] [stdout]    --> src/connection/mod.rs:456:8
[INFO] [stdout]     |
[INFO] [stdout] 456 | static NEXT_CONNECTION_ID: LazyLock<AtomicU64> = LazyLock::new(|| AtomicU64::new(0));
[INFO] [stdout]     |        ^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: methods `handle_upgraded_request`, `handle_on_upgrade_request`, `insert_connection`, and `remove_connection` are never used
[INFO] [stdout]    --> src/namespace/mod.rs:96:14
[INFO] [stdout]     |
[INFO] [stdout]  82 | impl WsIoServerNamespace {
[INFO] [stdout]     | ------------------------ methods in this implementation
[INFO] [stdout] ...
[INFO] [stdout]  96 |     async fn handle_upgraded_request(
[INFO] [stdout]     |              ^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 202 |     pub(crate) async fn handle_on_upgrade_request(
[INFO] [stdout]     |                         ^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 217 |     pub(crate) fn insert_connection(&self, connection: Arc<WsIoServerConnection>) {
[INFO] [stdout]     |                   ^^^^^^^^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 228 |     pub(crate) fn remove_connection(&self, id: u64) {
[INFO] [stdout]     |                   ^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `check_header_value` is never used
[INFO] [stdout]   --> src/request.rs:25:4
[INFO] [stdout]    |
[INFO] [stdout] 25 | fn check_header_value<ReqBody>(request: &Request<ReqBody>, name: HeaderName, expected_value: &[u8]) -> bool {
[INFO] [stdout]    |    ^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `dispatch_request` is never used
[INFO] [stdout]   --> src/request.rs:32:21
[INFO] [stdout]    |
[INFO] [stdout] 32 | pub(super) async fn dispatch_request<ReqBody, ResBody: Default, E: Send>(
[INFO] [stdout]    |                     ^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `respond` is never used
[INFO] [stdout]   --> src/request.rs:91:4
[INFO] [stdout]    |
[INFO] [stdout] 91 | fn respond<ResBody: Default, E: Send>(status: StatusCode) -> Result<Response<ResBody>, E> {
[INFO] [stdout]    |    ^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: methods `insert_connection_id` and `remove_connection_id` are never used
[INFO] [stdout]    --> src/runtime.rs:102:19
[INFO] [stdout]     |
[INFO] [stdout]  46 | impl WsIoServerRuntime {
[INFO] [stdout]     | ---------------------- methods in this implementation
[INFO] [stdout] ...
[INFO] [stdout] 102 |     pub(crate) fn insert_connection_id(&self, id: u64) {
[INFO] [stdout]     |                   ^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 131 |     pub(crate) fn remove_connection_id(&self, id: u64) {
[INFO] [stdout]     |                   ^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0599]: no variant, associated function, or constant named `Msgpack` found for enum `wsio_core::packet::codecs::WsIoPacketCodec` in the current scope
[INFO] [stdout]    --> src/builder.rs:123:44
[INFO] [stdout]     |
[INFO] [stdout] 123 |             .packet_codec(WsIoPacketCodec::Msgpack)
[INFO] [stdout]     |                                            ^^^^^^^ variant, associated function, or constant not found in `wsio_core::packet::codecs::WsIoPacketCodec`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0599]: no variant, associated function, or constant named `Msgpack` found for enum `wsio_core::packet::codecs::WsIoPacketCodec` in the current scope
[INFO] [stdout]    --> src/builder.rs:139:64
[INFO] [stdout]     |
[INFO] [stdout] 139 |         assert!(matches!(config.packet_codec, WsIoPacketCodec::Msgpack));
[INFO] [stdout]     |                                                                ^^^^^^^ variant, associated function, or constant not found in `wsio_core::packet::codecs::WsIoPacketCodec`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0599]: no variant, associated function, or constant named `Msgpack` found for enum `wsio_core::packet::codecs::WsIoPacketCodec` in the current scope
[INFO] [stdout]    --> src/namespace/builder.rs:201:44
[INFO] [stdout]     |
[INFO] [stdout] 201 |             .packet_codec(WsIoPacketCodec::Msgpack)
[INFO] [stdout]     |                                            ^^^^^^^ variant, associated function, or constant not found in `wsio_core::packet::codecs::WsIoPacketCodec`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0599]: no variant, associated function, or constant named `Msgpack` found for enum `wsio_core::packet::codecs::WsIoPacketCodec` in the current scope
[INFO] [stdout]    --> src/namespace/builder.rs:215:64
[INFO] [stdout]     |
[INFO] [stdout] 215 |         assert!(matches!(config.packet_codec, WsIoPacketCodec::Msgpack));
[INFO] [stdout]     |                                                                ^^^^^^^ variant, associated function, or constant not found in `wsio_core::packet::codecs::WsIoPacketCodec`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] For more information about this error, try `rustc --explain E0599`.
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `wsio-server` (lib test) due to 4 previous errors
[INFO] running `Command { std: "docker" "inspect" "89ee4d85d3b325e099a09af2b4b522d10e12d4fcb6e63905baf6cb9a43669b27", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "89ee4d85d3b325e099a09af2b4b522d10e12d4fcb6e63905baf6cb9a43669b27", kill_on_drop: false }`
[INFO] [stdout] 89ee4d85d3b325e099a09af2b4b522d10e12d4fcb6e63905baf6cb9a43669b27
