[INFO] fetching crate engineio-rs 0.1.5... [INFO] testing engineio-rs-0.1.5 against beta-2026-04-21 for beta-1.96-1 [INFO] extracting crate engineio-rs 0.1.5 into /workspace/builds/worker-1-tc2/source [INFO] started tweaking crates.io crate engineio-rs 0.1.5 [INFO] finished tweaking crates.io crate engineio-rs 0.1.5 [INFO] tweaked toml for crates.io crate engineio-rs 0.1.5 written to /workspace/builds/worker-1-tc2/source/Cargo.toml [INFO] validating manifest of crates.io crate engineio-rs 0.1.5 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] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+beta-2026-04-21" "generate-lockfile" "--manifest-path" "Cargo.toml", kill_on_drop: false }` [INFO] [stderr] Updating crates.io index [INFO] [stderr] Locking 195 packages to latest compatible versions [INFO] [stderr] Adding base64 v0.13.1 (available: v0.22.1) [INFO] [stderr] Adding dashmap v5.5.3 (available: v6.1.0) [INFO] [stderr] Adding generic-array v0.14.7 (available: v0.14.9) [INFO] [stderr] Adding http v0.2.12 (available: v1.4.0) [INFO] [stderr] Adding reqwest v0.11.27 (available: v0.13.2) [INFO] [stderr] Adding thiserror v1.0.69 (available: v2.0.18) [INFO] [stderr] Adding tokio-tungstenite v0.17.2 (available: v0.29.0) [INFO] [stderr] Adding tungstenite v0.17.3 (available: v0.29.0) [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 }` [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_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" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }` [INFO] [stdout] cfffca87d882e7d9fd0660bf0045000d3dfd3922308234598f2c911f6efc0fa0 [INFO] running `Command { std: "docker" "start" "-a" "cfffca87d882e7d9fd0660bf0045000d3dfd3922308234598f2c911f6efc0fa0", kill_on_drop: false }` [INFO] running `Command { std: "docker" "inspect" "cfffca87d882e7d9fd0660bf0045000d3dfd3922308234598f2c911f6efc0fa0", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "cfffca87d882e7d9fd0660bf0045000d3dfd3922308234598f2c911f6efc0fa0", kill_on_drop: false }` [INFO] [stdout] cfffca87d882e7d9fd0660bf0045000d3dfd3922308234598f2c911f6efc0fa0 [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] e2ee17eb7735f66fa44a066f503c97173ccf78abe89b83c00f1212ea886ee516 [INFO] running `Command { std: "docker" "start" "-a" "e2ee17eb7735f66fa44a066f503c97173ccf78abe89b83c00f1212ea886ee516", kill_on_drop: false }` [INFO] [stderr] Compiling litemap v0.8.2 [INFO] [stderr] Compiling cc v1.2.61 [INFO] [stderr] Compiling writeable v0.6.3 [INFO] [stderr] Compiling icu_normalizer_data v2.2.0 [INFO] [stderr] Compiling icu_properties_data v2.2.0 [INFO] [stderr] Compiling typenum v1.20.0 [INFO] [stderr] Compiling zerocopy v0.8.48 [INFO] [stderr] Compiling serde_core v1.0.228 [INFO] [stderr] Compiling syn v2.0.117 [INFO] [stderr] Compiling getrandom v0.2.17 [INFO] [stderr] Compiling parking_lot_core v0.9.12 [INFO] [stderr] Compiling errno v0.3.14 [INFO] [stderr] Compiling generic-array v0.14.7 [INFO] [stderr] Compiling tracing-core v0.1.36 [INFO] [stderr] Compiling rustls v0.21.12 [INFO] [stderr] Compiling untrusted v0.7.1 [INFO] [stderr] Compiling signal-hook-registry v1.4.8 [INFO] [stderr] Compiling rustls v0.20.9 [INFO] [stderr] Compiling spin v0.5.2 [INFO] [stderr] Compiling serde v1.0.228 [INFO] [stderr] Compiling openssl-probe v0.1.6 [INFO] [stderr] Compiling rand_core v0.6.4 [INFO] [stderr] Compiling base64 v0.13.1 [INFO] [stderr] Compiling parking_lot v0.12.5 [INFO] [stderr] Compiling rustls-native-certs v0.6.3 [INFO] [stderr] Compiling utf-8 v0.7.6 [INFO] [stderr] Compiling hashbrown v0.14.5 [INFO] [stderr] Compiling ipnet v2.12.0 [INFO] [stderr] Compiling webpki-roots v0.25.4 [INFO] [stderr] Compiling adler32 v1.2.0 [INFO] [stderr] Compiling dashmap v5.5.3 [INFO] [stderr] Compiling block-buffer v0.10.4 [INFO] [stderr] Compiling crypto-common v0.1.7 [INFO] [stderr] Compiling digest v0.10.7 [INFO] [stderr] Compiling ring v0.17.14 [INFO] [stderr] Compiling ring v0.16.20 [INFO] [stderr] Compiling sha-1 v0.10.1 [INFO] [stderr] Compiling serde_json v1.0.149 [INFO] [stderr] Compiling synstructure v0.13.2 [INFO] [stderr] Compiling ppv-lite86 v0.2.21 [INFO] [stderr] Compiling zerovec-derive v0.11.3 [INFO] [stderr] Compiling displaydoc v0.2.5 [INFO] [stderr] Compiling tokio-macros v2.7.0 [INFO] [stderr] Compiling futures-macro v0.3.32 [INFO] [stderr] Compiling tracing-attributes v0.1.31 [INFO] [stderr] Compiling thiserror-impl v1.0.69 [INFO] [stderr] Compiling serde_derive v1.0.228 [INFO] [stderr] Compiling async-stream-impl v0.3.6 [INFO] [stderr] Compiling async-trait v0.1.89 [INFO] [stderr] Compiling rand_chacha v0.3.1 [INFO] [stderr] Compiling rand v0.8.6 [INFO] [stderr] Compiling zerofrom-derive v0.1.7 [INFO] [stderr] Compiling yoke-derive v0.8.2 [INFO] [stderr] Compiling async-stream v0.3.6 [INFO] [stderr] Compiling futures-util v0.3.32 [INFO] [stderr] Compiling tokio v1.52.1 [INFO] [stderr] Compiling thiserror v1.0.69 [INFO] [stderr] Compiling tracing v0.1.44 [INFO] [stderr] Compiling sct v0.7.1 [INFO] [stderr] Compiling rustls-webpki v0.101.7 [INFO] [stderr] Compiling webpki v0.22.4 [INFO] [stderr] Compiling zerofrom v0.1.7 [INFO] [stderr] Compiling yoke v0.8.2 [INFO] [stderr] Compiling zerovec v0.11.6 [INFO] [stderr] Compiling zerotrie v0.2.4 [INFO] [stderr] Compiling tinystr v0.8.3 [INFO] [stderr] Compiling potential_utf v0.1.5 [INFO] [stderr] Compiling icu_collections v2.2.0 [INFO] [stderr] Compiling icu_locale_core v2.2.0 [INFO] [stderr] Compiling icu_provider v2.2.0 [INFO] [stderr] Compiling serde_urlencoded v0.7.1 [INFO] [stderr] Compiling icu_properties v2.2.0 [INFO] [stderr] Compiling icu_normalizer v2.2.0 [INFO] [stderr] Compiling idna_adapter v1.2.1 [INFO] [stderr] Compiling idna v1.1.0 [INFO] [stderr] Compiling url v2.5.8 [INFO] [stderr] Compiling tokio-util v0.7.18 [INFO] [stderr] Compiling tokio-rustls v0.24.1 [INFO] [stderr] Compiling tokio-rustls v0.23.4 [INFO] [stderr] Compiling tungstenite v0.17.3 [INFO] [stderr] Compiling h2 v0.3.27 [INFO] [stderr] Compiling tokio-tungstenite v0.17.2 [INFO] [stderr] Compiling hyper v0.14.32 [INFO] [stderr] Compiling hyper-rustls v0.24.2 [INFO] [stderr] Compiling reqwest v0.11.27 [INFO] [stderr] Compiling engineio-rs v0.1.5 (/opt/rustwide/workdir) [INFO] [stdout] warning: unexpected `cfg` condition name: `tarpaulin` [INFO] [stdout] --> src/socket/socket.rs:301:12 [INFO] [stdout] | [INFO] [stdout] 301 | #[cfg_attr(tarpaulin, ignore)] [INFO] [stdout] | ^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = help: expected names are: `docsrs`, `feature`, and `test` and 31 more [INFO] [stdout] = help: consider using a Cargo feature instead [INFO] [stdout] = help: or consider adding in `Cargo.toml` the `check-cfg` lint config for the lint: [INFO] [stdout] [lints.rust] [INFO] [stdout] unexpected_cfgs = { level = "warn", check-cfg = ['cfg(tarpaulin)'] } [INFO] [stdout] = help: or consider adding `println!("cargo::rustc-check-cfg=cfg(tarpaulin)");` to the top of the `build.rs` [INFO] [stdout] = note: see for more information about checking conditional configuration [INFO] [stdout] = note: `#[warn(unexpected_cfgs)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] Finished `dev` profile [unoptimized + debuginfo] target(s) in 47.91s [INFO] running `Command { std: "docker" "inspect" "e2ee17eb7735f66fa44a066f503c97173ccf78abe89b83c00f1212ea886ee516", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "e2ee17eb7735f66fa44a066f503c97173ccf78abe89b83c00f1212ea886ee516", kill_on_drop: false }` [INFO] [stdout] e2ee17eb7735f66fa44a066f503c97173ccf78abe89b83c00f1212ea886ee516 [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] 1c47b4bf1cc709e8c23a65480deb0063c3523fddce874521b6057b5cf7806c40 [INFO] running `Command { std: "docker" "start" "-a" "1c47b4bf1cc709e8c23a65480deb0063c3523fddce874521b6057b5cf7806c40", kill_on_drop: false }` [INFO] [stderr] Compiling regex-syntax v0.8.10 [INFO] [stderr] Compiling tracing-serde v0.2.0 [INFO] [stderr] Compiling tracing-log v0.2.0 [INFO] [stdout] warning: unexpected `cfg` condition name: `tarpaulin` [INFO] [stdout] --> src/socket/socket.rs:301:12 [INFO] [stdout] | [INFO] [stdout] 301 | #[cfg_attr(tarpaulin, ignore)] [INFO] [stdout] | ^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = help: expected names are: `docsrs`, `feature`, and `test` and 31 more [INFO] [stdout] = help: consider using a Cargo feature instead [INFO] [stdout] = help: or consider adding in `Cargo.toml` the `check-cfg` lint config for the lint: [INFO] [stdout] [lints.rust] [INFO] [stdout] unexpected_cfgs = { level = "warn", check-cfg = ['cfg(tarpaulin)'] } [INFO] [stdout] = help: or consider adding `println!("cargo::rustc-check-cfg=cfg(tarpaulin)");` to the top of the `build.rs` [INFO] [stdout] = note: see for more information about checking conditional configuration [INFO] [stdout] = note: `#[warn(unexpected_cfgs)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] Compiling regex-automata v0.4.14 [INFO] [stderr] Compiling matchers v0.2.0 [INFO] [stderr] Compiling tracing-subscriber v0.3.23 [INFO] [stderr] Compiling engineio-rs v0.1.5 (/opt/rustwide/workdir) [INFO] [stdout] warning: unexpected `cfg` condition name: `tarpaulin` [INFO] [stdout] --> src/socket/socket.rs:301:12 [INFO] [stdout] | [INFO] [stdout] 301 | #[cfg_attr(tarpaulin, ignore)] [INFO] [stdout] | ^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = help: expected names are: `docsrs`, `feature`, and `test` and 31 more [INFO] [stdout] = help: consider using a Cargo feature instead [INFO] [stdout] = help: or consider adding in `Cargo.toml` the `check-cfg` lint config for the lint: [INFO] [stdout] [lints.rust] [INFO] [stdout] unexpected_cfgs = { level = "warn", check-cfg = ['cfg(tarpaulin)'] } [INFO] [stdout] = help: or consider adding `println!("cargo::rustc-check-cfg=cfg(tarpaulin)");` to the top of the `build.rs` [INFO] [stdout] = note: see for more information about checking conditional configuration [INFO] [stdout] = note: `#[warn(unexpected_cfgs)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] Finished `test` profile [unoptimized + debuginfo] target(s) in 9.19s [INFO] running `Command { std: "docker" "inspect" "1c47b4bf1cc709e8c23a65480deb0063c3523fddce874521b6057b5cf7806c40", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "1c47b4bf1cc709e8c23a65480deb0063c3523fddce874521b6057b5cf7806c40", kill_on_drop: false }` [INFO] [stdout] 1c47b4bf1cc709e8c23a65480deb0063c3523fddce874521b6057b5cf7806c40 [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", kill_on_drop: false }` [INFO] [stdout] b0a03c6249a6c57f2cb97ec4ed8bf6dce625c9ec782eea81742b71c1d421b1ae [INFO] running `Command { std: "docker" "start" "-a" "b0a03c6249a6c57f2cb97ec4ed8bf6dce625c9ec782eea81742b71c1d421b1ae", kill_on_drop: false }` [INFO] [stderr] warning: unexpected `cfg` condition name: `tarpaulin` [INFO] [stderr] --> src/socket/socket.rs:301:12 [INFO] [stderr] | [INFO] [stderr] 301 | #[cfg_attr(tarpaulin, ignore)] [INFO] [stderr] | ^^^^^^^^^ [INFO] [stderr] | [INFO] [stderr] = help: expected names are: `docsrs`, `feature`, and `test` and 31 more [INFO] [stderr] = help: consider using a Cargo feature instead [INFO] [stderr] = help: or consider adding in `Cargo.toml` the `check-cfg` lint config for the lint: [INFO] [stderr] [lints.rust] [INFO] [stderr] unexpected_cfgs = { level = "warn", check-cfg = ['cfg(tarpaulin)'] } [INFO] [stderr] = help: or consider adding `println!("cargo::rustc-check-cfg=cfg(tarpaulin)");` to the top of the `build.rs` [INFO] [stderr] = note: see for more information about checking conditional configuration [INFO] [stderr] = note: `#[warn(unexpected_cfgs)]` on by default [INFO] [stderr] [INFO] [stderr] warning: `engineio-rs` (lib) generated 1 warning [INFO] [stderr] warning: `engineio-rs` (lib test) generated 1 warning (1 duplicate) [INFO] [stderr] Finished `test` profile [unoptimized + debuginfo] target(s) in 0.14s [INFO] [stderr] Running unittests src/lib.rs (/opt/rustwide/target/debug/deps/engineio_rs-7e3f319cab51ea74) [INFO] [stdout] [INFO] [stdout] running 12 tests [INFO] [stdout] test packet::tests::test_build_polling_payload ... ok [INFO] [stdout] test packet::tests::test_binary_packet ... ok [INFO] [stdout] test packet::tests::test_binary_payload ... ok [INFO] [stdout] test packet::tests::test_decode_payload ... ok [INFO] [stdout] test packet::tests::test_packet_error ... ok [INFO] [stdout] test packet::tests::test_is_reflexive ... ok [INFO] [stdout] test packet::tests::test_packet_type_conversion_and_incompl_packet ... ok [INFO] [stdout] test packet::tests::test_handshake_packet ... ok [INFO] [stdout] test transports::polling::test::test_server_polling_transport ... ok [INFO] [stdout] test transports::polling::test::polling_transport_url ... ok [INFO] [stdout] test server::server::test::test_connection ... ok [INFO] [stdout] test server::server::test::test_pong_timeout ... ok [INFO] [stdout] [INFO] [stdout] test result: ok. 12 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.92s [INFO] [stdout] [INFO] [stderr] Doc-tests engineio_rs [INFO] [stdout] [INFO] [stdout] running 0 tests [INFO] [stdout] [INFO] [stdout] test result: ok. 0 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.00s [INFO] [stdout] [INFO] running `Command { std: "docker" "inspect" "b0a03c6249a6c57f2cb97ec4ed8bf6dce625c9ec782eea81742b71c1d421b1ae", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "b0a03c6249a6c57f2cb97ec4ed8bf6dce625c9ec782eea81742b71c1d421b1ae", kill_on_drop: false }` [INFO] [stdout] b0a03c6249a6c57f2cb97ec4ed8bf6dce625c9ec782eea81742b71c1d421b1ae