[INFO] fetching crate rs_poker 4.1.0...
[INFO] testing rs_poker-4.1.0 against 1.91.0 for beta-1.92-2
[INFO] extracting crate rs_poker 4.1.0 into /workspace/builds/worker-3-tc1/source
[INFO] removed /workspace/builds/worker-3-tc1/source/.cargo/config.toml
[INFO] started tweaking crates.io crate rs_poker 4.1.0
[INFO] removed 0 missing examples
[INFO] finished tweaking crates.io crate rs_poker 4.1.0
[INFO] tweaked toml for crates.io crate rs_poker 4.1.0 written to /workspace/builds/worker-3-tc1/source/Cargo.toml
[INFO] validating manifest of crates.io crate rs_poker 4.1.0 on toolchain 1.91.0
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+1.91.0" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate crates.io crate rs_poker 4.1.0 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" "+1.91.0" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded anstream v0.6.19
[INFO] [stderr]   Downloaded little-sorry v1.1.0
[INFO] [stderr]   Downloaded anstyle-query v1.1.3
[INFO] [stderr]   Downloaded anstyle-wincon v3.0.9
[INFO] [stderr]   Downloaded tikv-jemallocator v0.6.0
[INFO] [stderr]   Downloaded clap v4.5.39
[INFO] [stderr]   Downloaded rand_distr v0.5.1
[INFO] [stderr]   Downloaded jiff-static v0.2.14
[INFO] [stderr]   Downloaded cc v1.2.25
[INFO] [stderr]   Downloaded clap_builder v4.5.39
[INFO] [stderr]   Downloaded jiff v0.2.14
[INFO] [stderr]   Downloaded tikv-jemalloc-sys v0.6.0+5.3.0-1-ge13ca993e8ccb9ba9847cc330696e02839f328f7
[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@sha256:4848fb76d95f26979359cc7e45710b1dbc8f3acb7aeedee7c460d7702230f228" "/opt/rustwide/cargo-home/bin/cargo" "+1.91.0" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 79e9df0f46a449dc34df1e45b24fcd60579ea616d8c64e44c47cfe17653f228c
[INFO] running `Command { std: "docker" "start" "-a" "79e9df0f46a449dc34df1e45b24fcd60579ea616d8c64e44c47cfe17653f228c", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "79e9df0f46a449dc34df1e45b24fcd60579ea616d8c64e44c47cfe17653f228c", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "79e9df0f46a449dc34df1e45b24fcd60579ea616d8c64e44c47cfe17653f228c", kill_on_drop: false }`
[INFO] [stdout] 79e9df0f46a449dc34df1e45b24fcd60579ea616d8c64e44c47cfe17653f228c
[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=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@sha256:4848fb76d95f26979359cc7e45710b1dbc8f3acb7aeedee7c460d7702230f228" "/opt/rustwide/cargo-home/bin/cargo" "+1.91.0" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 13d18910efdfe88abd5e0b00355285b5d6fd569c58d0bdd933feb56b3ed78862
[INFO] running `Command { std: "docker" "start" "-a" "13d18910efdfe88abd5e0b00355285b5d6fd569c58d0bdd933feb56b3ed78862", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.172
[INFO] [stderr]    Compiling zerocopy v0.8.25
[INFO] [stderr]    Compiling getrandom v0.3.3
[INFO] [stderr]    Compiling rawpointer v0.2.1
[INFO] [stderr]    Compiling serde_json v1.0.140
[INFO] [stderr]    Compiling memchr v2.7.4
[INFO] [stderr]    Compiling num-traits v0.2.19
[INFO] [stderr]    Compiling matrixmultiply v0.3.10
[INFO] [stderr]    Compiling tracing-core v0.1.33
[INFO] [stderr]    Compiling syn v2.0.101
[INFO] [stderr]    Compiling num-complex v0.4.6
[INFO] [stderr]    Compiling num-integer v0.1.46
[INFO] [stderr]    Compiling rand_core v0.9.3
[INFO] [stderr]    Compiling ndarray v0.16.1
[INFO] [stderr]    Compiling ppv-lite86 v0.2.21
[INFO] [stderr]    Compiling rand_chacha v0.9.0
[INFO] [stderr]    Compiling rand v0.9.1
[INFO] [stderr]    Compiling rand_distr v0.5.1
[INFO] [stderr]    Compiling thiserror-impl v2.0.12
[INFO] [stderr]    Compiling serde_derive v1.0.219
[INFO] [stderr]    Compiling tracing-attributes v0.1.28
[INFO] [stderr]    Compiling tracing v0.1.41
[INFO] [stderr]    Compiling thiserror v2.0.12
[INFO] [stderr]    Compiling little-sorry v1.1.0
[INFO] [stderr]    Compiling serde v1.0.219
[INFO] [stderr]    Compiling rs_poker v4.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] error[E0554]: `#![feature]` may not be used on the stable release channel
[INFO] [stdout]    --> src/lib.rs:190:32
[INFO] [stdout]     |
[INFO] [stdout] 190 | #![cfg_attr(feature = "arena", feature(assert_matches))]
[INFO] [stdout]     |                                ^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0554]: `#![feature]` may not be used on the stable release channel
[INFO] [stdout]    --> src/lib.rs:191:32
[INFO] [stdout]     |
[INFO] [stdout] 191 | #![cfg_attr(feature = "arena", feature(mapped_lock_guards))]
[INFO] [stdout]     |                                ^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] For more information about this error, try `rustc --explain E0554`.
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `rs_poker` (lib) due to 2 previous errors
[INFO] running `Command { std: "docker" "inspect" "13d18910efdfe88abd5e0b00355285b5d6fd569c58d0bdd933feb56b3ed78862", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "13d18910efdfe88abd5e0b00355285b5d6fd569c58d0bdd933feb56b3ed78862", kill_on_drop: false }`
[INFO] [stdout] 13d18910efdfe88abd5e0b00355285b5d6fd569c58d0bdd933feb56b3ed78862