[INFO] fetching crate rust_poker 0.1.14...
[INFO] testing rust_poker-0.1.14 against 1.60.0 for beta-1.61-1
[INFO] extracting crate rust_poker 0.1.14 into /workspace/builds/worker-20/source
[INFO] validating manifest of crates.io crate rust_poker 0.1.14 on toolchain 1.60.0
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.60.0" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate rust_poker 0.1.14
[INFO] finished tweaking crates.io crate rust_poker 0.1.14
[INFO] tweaked toml for crates.io crate rust_poker 0.1.14 written to /workspace/builds/worker-20/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.60.0" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.60.0" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded bindgen v0.49.4
[INFO] [stderr]   Downloaded fastdivide v0.2.0
[INFO] [stderr]   Downloaded hand_indexer v0.1.2
[INFO] [stderr]   Downloaded read_write v0.1.2
[INFO] [stderr]   Downloaded gen_eval_table v0.1.2
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-20/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-20/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:b0c94ce3c1162fcb8e57cac5b65ec2f72eabb1eebea4fcc35e269e823f681646" "/opt/rustwide/cargo-home/bin/cargo" "+1.60.0" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 7cfb7fe10b710abd5d5324a6757e3fca4a48773f0f8292ff56655c0517273a6a
[INFO] running `Command { std: "docker" "start" "-a" "7cfb7fe10b710abd5d5324a6757e3fca4a48773f0f8292ff56655c0517273a6a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "7cfb7fe10b710abd5d5324a6757e3fca4a48773f0f8292ff56655c0517273a6a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "7cfb7fe10b710abd5d5324a6757e3fca4a48773f0f8292ff56655c0517273a6a", kill_on_drop: false }`
[INFO] [stdout] 7cfb7fe10b710abd5d5324a6757e3fca4a48773f0f8292ff56655c0517273a6a
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-20/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-20/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" "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:b0c94ce3c1162fcb8e57cac5b65ec2f72eabb1eebea4fcc35e269e823f681646" "/opt/rustwide/cargo-home/bin/cargo" "+1.60.0" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 42eb7fc58aede34bf8f7b49681ecf4339b17c280be575edec13391b69d9ca994
[INFO] running `Command { std: "docker" "start" "-a" "42eb7fc58aede34bf8f7b49681ecf4339b17c280be575edec13391b69d9ca994", kill_on_drop: false }`
[INFO] [stderr]    Compiling read_write v0.1.2
[INFO] [stderr]    Compiling fastdivide v0.2.0
[INFO] [stderr]    Compiling crossbeam-channel v0.4.4
[INFO] [stderr]    Compiling serde v1.0.136
[INFO] [stderr]    Compiling rand v0.7.3
[INFO] [stderr]    Compiling gen_eval_table v0.1.2
[INFO] [stderr]    Compiling rust_poker v0.1.14 (/opt/rustwide/workdir)
[INFO] [stderr]    Compiling crossbeam v0.7.3
[INFO] [stderr]    Compiling serde_json v1.0.79
[INFO] [stdout] warning: unused import: `std::error::Error`
[INFO] [stdout]  --> src/equity_calculator/simulator.rs:8:5
[INFO] [stdout]   |
[INFO] [stdout] 8 | use std::error::Error;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field is never read: `hand_ranges`
[INFO] [stdout]    --> src/equity_calculator/simulator.rs:289:5
[INFO] [stdout]     |
[INFO] [stdout] 289 |     hand_ranges: Vec<HandRange>,
[INFO] [stdout]     |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] note: `Simulator` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stdout]    --> src/equity_calculator/simulator.rs:287:10
[INFO] [stdout]     |
[INFO] [stdout] 287 | #[derive(Debug)]
[INFO] [stdout]     |          ^^^^^
[INFO] [stdout]     = note: this warning originates in the derive macro `Debug` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0554]: `#![feature]` may not be used on the stable release channel
[INFO] [stdout]  --> src/lib.rs:1:12
[INFO] [stdout]   |
[INFO] [stdout] 1 | #![feature(test)]
[INFO] [stdout]   |            ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to previous error; 2 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] For more information about this error, try `rustc --explain E0554`.
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `rust_poker` due to 2 previous errors; 2 warnings emitted
[INFO] running `Command { std: "docker" "inspect" "42eb7fc58aede34bf8f7b49681ecf4339b17c280be575edec13391b69d9ca994", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "42eb7fc58aede34bf8f7b49681ecf4339b17c280be575edec13391b69d9ca994", kill_on_drop: false }`
[INFO] [stdout] 42eb7fc58aede34bf8f7b49681ecf4339b17c280be575edec13391b69d9ca994