[INFO] updating cached repository https://github.com/ejaszewski/ruthless
[INFO] running `"git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "-c" "remote.origin.fetch=refs/heads/*:refs/heads/*" "fetch" "origin" "--force" "--prune"`
[INFO] [stderr] From https://github.com/ejaszewski/ruthless
[INFO] [stderr]    8c2152f..f99bd02  master     -> master
[INFO] running `"git" "rev-parse" "HEAD"`
[INFO] [stdout] f99bd02416cf6a36af88ac805dd7161fda37d3d9
[INFO] checking ejaszewski/ruthless against try#e6563ac70cbfd3196492061900e9e9793e065e4d for pr-69410
[INFO] running `"git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fejaszewski%2Fruthless" "/workspace/builds/worker-2/source"`
[INFO] [stderr] Cloning into '/workspace/builds/worker-2/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/ejaszewski/ruthless on toolchain e6563ac70cbfd3196492061900e9e9793e065e4d
[INFO] running `"/workspace/cargo-home/bin/cargo" "+e6563ac70cbfd3196492061900e9e9793e065e4d" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] started tweaking git repo https://github.com/ejaszewski/ruthless
[INFO] finished tweaking git repo https://github.com/ejaszewski/ruthless
[INFO] tweaked toml for git repo https://github.com/ejaszewski/ruthless written to /workspace/builds/worker-2/source/Cargo.toml
[INFO] crate git repo https://github.com/ejaszewski/ruthless already has a lockfile, it will not be regenerated
[INFO] running `"/workspace/cargo-home/bin/cargo" "+e6563ac70cbfd3196492061900e9e9793e065e4d" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] running `"docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/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" "MAP_USER_ID=0" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=forbid" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--network" "none" "rustops/crates-build-env" "/opt/rustwide/cargo-home/bin/cargo" "+e6563ac70cbfd3196492061900e9e9793e065e4d" "check" "--frozen" "--all" "--all-targets"`
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] [stdout] 483e39764a3bab0d58894f1bc6c8838afb8082e7f196d3d41c53a31cf9995b0a
[INFO] running `"docker" "start" "-a" "483e39764a3bab0d58894f1bc6c8838afb8082e7f196d3d41c53a31cf9995b0a"`
[INFO] [stderr]    Compiling syn v0.15.42
[INFO] [stderr]     Checking clap v2.33.0
[INFO] [stderr]     Checking rayon-core v1.5.0
[INFO] [stderr]     Checking rayon v1.1.0
[INFO] [stderr]    Compiling serde_derive v1.0.97
[INFO] [stderr]     Checking serde v1.0.97
[INFO] [stderr]     Checking serde_json v1.0.40
[INFO] [stderr]     Checking ruthless v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr] warning: unused import: `Move`
[INFO] [stderr]  --> src/search/hashtable.rs:1:28
[INFO] [stderr]   |
[INFO] [stderr] 1 | use crate::board::{ Board, Move };
[INFO] [stderr]   |                            ^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `Move`
[INFO] [stderr]  --> src/search/hashtable.rs:1:28
[INFO] [stderr]   |
[INFO] [stderr] 1 | use crate::board::{ Board, Move };
[INFO] [stderr]   |                            ^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `nodes`
[INFO] [stderr]    --> src/search/negamax.rs:197:26
[INFO] [stderr]     |
[INFO] [stderr] 197 |             let (result, nodes) = negamax_impl(board, -beta, -alpha, half_depth, evaluator);
[INFO] [stderr]     |                          ^^^^^ help: consider prefixing with an underscore: `_nodes`
[INFO] [stderr]     |
[INFO] [stderr]     = note: `#[warn(unused_variables)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `nodes`
[INFO] [stderr]    --> src/search/negamax.rs:197:26
[INFO] [stderr]     |
[INFO] [stderr] 197 |             let (result, nodes) = negamax_impl(board, -beta, -alpha, half_depth, evaluator);
[INFO] [stderr]     |                          ^^^^^ help: consider prefixing with an underscore: `_nodes`
[INFO] [stderr]     |
[INFO] [stderr]     = note: `#[warn(unused_variables)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `nm_new`
[INFO] [stderr]   --> src/main.rs:16:59
[INFO] [stderr]    |
[INFO] [stderr] 16 | use ruthless::search::{ endgame, negamax, bns, iterative, nm_new, eval::{ PatternEvaluator, StagedPatternEvaluator } };
[INFO] [stderr]    |                                                           ^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(unused_imports)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `nm_new`
[INFO] [stderr]   --> src/main.rs:16:59
[INFO] [stderr]    |
[INFO] [stderr] 16 | use ruthless::search::{ endgame, negamax, bns, iterative, nm_new, eval::{ PatternEvaluator, StagedPatternEvaluator } };
[INFO] [stderr]    |                                                           ^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(unused_imports)]` on by default
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 59.37s
[INFO] running `"docker" "inspect" "483e39764a3bab0d58894f1bc6c8838afb8082e7f196d3d41c53a31cf9995b0a"`
[INFO] running `"docker" "rm" "-f" "483e39764a3bab0d58894f1bc6c8838afb8082e7f196d3d41c53a31cf9995b0a"`
[INFO] [stdout] 483e39764a3bab0d58894f1bc6c8838afb8082e7f196d3d41c53a31cf9995b0a