[INFO] fetching crate rs_handstrength 0.4.3...
[INFO] testing rs_handstrength-0.4.3 against 1.91.0 for beta-1.92-2
[INFO] extracting crate rs_handstrength 0.4.3 into /workspace/builds/worker-6-tc1/source
[INFO] started tweaking crates.io crate rs_handstrength 0.4.3
[INFO] finished tweaking crates.io crate rs_handstrength 0.4.3
[INFO] tweaked toml for crates.io crate rs_handstrength 0.4.3 written to /workspace/builds/worker-6-tc1/source/Cargo.toml
[INFO] validating manifest of crates.io crate rs_handstrength 0.4.3 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] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+1.91.0" "generate-lockfile" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr]      Locking 24 packages to latest compatible versions
[INFO] [stderr]       Adding itertools v0.12.1 (available: v0.14.0)
[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] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-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] d5532816e9f37e8752794ccb8abcd045a7cf47d9d5ee37395788f9c55bdee600
[INFO] running `Command { std: "docker" "start" "-a" "d5532816e9f37e8752794ccb8abcd045a7cf47d9d5ee37395788f9c55bdee600", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "d5532816e9f37e8752794ccb8abcd045a7cf47d9d5ee37395788f9c55bdee600", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "d5532816e9f37e8752794ccb8abcd045a7cf47d9d5ee37395788f9c55bdee600", kill_on_drop: false }`
[INFO] [stdout] d5532816e9f37e8752794ccb8abcd045a7cf47d9d5ee37395788f9c55bdee600
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-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] 441582f5eb1f9de2fb7b95fa26277ebedd641fe37b90e93d7c239cb54327f8cd
[INFO] running `Command { std: "docker" "start" "-a" "441582f5eb1f9de2fb7b95fa26277ebedd641fe37b90e93d7c239cb54327f8cd", kill_on_drop: false }`
[INFO] [stderr]    Compiling similar v2.7.0
[INFO] [stderr]    Compiling console v0.15.11
[INFO] [stderr]    Compiling insta v1.43.2
[INFO] [stderr]    Compiling rs_handstrength v0.4.3 (/opt/rustwide/workdir)
[INFO] [stdout] error[E0554]: `#![feature]` may not be used on the stable release channel
[INFO] [stdout]  --> src/lib.rs:1:1
[INFO] [stdout]   |
[INFO] [stdout] 1 | #![feature(test)]
[INFO] [stdout]   | ^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `GroupBy`
[INFO] [stdout]  --> src/pf_rank.rs:1:28
[INFO] [stdout]   |
[INFO] [stdout] 1 | use itertools::{Itertools, GroupBy};
[INFO] [stdout]   |                            ^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `Suit`
[INFO] [stdout]  --> src/pf_rank.rs:3:25
[INFO] [stdout]   |
[INFO] [stdout] 3 | use crate::card::{Card, Suit};
[INFO] [stdout]   |                         ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `hithc`
[INFO] [stdout]   --> src/get_nut_rank.rs:83:10
[INFO] [stdout]    |
[INFO] [stdout] 83 |     let (hithc, rankhc) = is_subset(hand, can_hc, relative); 
[INFO] [stdout]    |          ^^^^^ help: if this is intentional, prefix it with an underscore: `_hithc`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `cal_eq_start`
[INFO] [stdout]    --> src/equity.rs:124:9
[INFO] [stdout]     |
[INFO] [stdout] 124 |     let cal_eq_start = std::time::Instant::now();
[INFO] [stdout]     |         ^^^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_cal_eq_start`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `cal_eq_end`
[INFO] [stdout]    --> src/equity.rs:126:9
[INFO] [stdout]     |
[INFO] [stdout] 126 |     let cal_eq_end = std::time::Instant::now();
[INFO] [stdout]     |         ^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_cal_eq_end`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `rs_handstrength` (lib) due to 1 previous error; 5 warnings emitted
[INFO] [stdout] For more information about this error, try `rustc --explain E0554`.
[INFO] [stdout] 
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] running `Command { std: "docker" "inspect" "441582f5eb1f9de2fb7b95fa26277ebedd641fe37b90e93d7c239cb54327f8cd", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "441582f5eb1f9de2fb7b95fa26277ebedd641fe37b90e93d7c239cb54327f8cd", kill_on_drop: false }`
[INFO] [stdout] 441582f5eb1f9de2fb7b95fa26277ebedd641fe37b90e93d7c239cb54327f8cd