[INFO] cloning repository https://github.com/ejaszewski/ruthless
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/ejaszewski/ruthless" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fejaszewski%2Fruthless", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fejaszewski%2Fruthless'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 5ba817ddd873bef08af4957a65f6c9479c2362a6
[INFO] checking ejaszewski/ruthless against beta for pr-78714
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fejaszewski%2Fruthless" "/workspace/builds/worker-7/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-7/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/ejaszewski/ruthless on toolchain beta
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta" "read-manifest" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[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-7/source/Cargo.toml
[INFO] crate git repo https://github.com/ejaszewski/ruthless already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/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" "rustops/crates-build-env@sha256:6eabd152ff4036248d66efda456a36cb33d24b7291b33f25f75140726c88da35" "/opt/rustwide/cargo-home/bin/cargo" "+beta" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] d5a13f52b89d7ecf9462383b669c8f0e98ac7d4e917031f1da9a77cb92075be5
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] running `Command { std: "docker" "start" "-a" "d5a13f52b89d7ecf9462383b669c8f0e98ac7d4e917031f1da9a77cb92075be5", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "d5a13f52b89d7ecf9462383b669c8f0e98ac7d4e917031f1da9a77cb92075be5", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "d5a13f52b89d7ecf9462383b669c8f0e98ac7d4e917031f1da9a77cb92075be5", kill_on_drop: false }`
[INFO] [stdout] d5a13f52b89d7ecf9462383b669c8f0e98ac7d4e917031f1da9a77cb92075be5
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/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=forbid" "-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" "rustops/crates-build-env@sha256:6eabd152ff4036248d66efda456a36cb33d24b7291b33f25f75140726c88da35" "/opt/rustwide/cargo-home/bin/cargo" "+beta" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] fd39932c2dd4ae7c1eefd35b856b41117a947c0520b5072312698c7c25ea322a
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] running `Command { std: "docker" "start" "-a" "fd39932c2dd4ae7c1eefd35b856b41117a947c0520b5072312698c7c25ea322a", kill_on_drop: false }`
[INFO] [stderr]    Compiling syn v0.15.42
[INFO] [stderr]    Compiling serde v1.0.97
[INFO] [stderr]    Compiling rayon-core v1.5.0
[INFO] [stderr]     Checking crossbeam-utils v0.6.6
[INFO] [stderr]     Checking clap v2.33.0
[INFO] [stderr]     Checking crossbeam-epoch v0.7.2
[INFO] [stderr]     Checking crossbeam-queue v0.1.2
[INFO] [stderr]     Checking crossbeam-deque v0.6.3
[INFO] [stderr]     Checking rayon v1.1.0
[INFO] [stderr]    Compiling serde_derive v1.0.97
[INFO] [stderr]     Checking serde_json v1.0.40
[INFO] [stderr]     Checking ruthless v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused import: `Move`
[INFO] [stdout]  --> src/search/hashtable.rs:1:28
[INFO] [stdout]   |
[INFO] [stdout] 1 | use crate::board::{ Board, Move };
[INFO] [stdout]   |                            ^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `Move`
[INFO] [stdout]  --> src/search/hashtable.rs:1:28
[INFO] [stdout]   |
[INFO] [stdout] 1 | use crate::board::{ Board, Move };
[INFO] [stdout]   |                            ^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `nodes`
[INFO] [stdout]    --> src/search/negamax.rs:202:26
[INFO] [stdout]     |
[INFO] [stdout] 202 |             let (result, nodes) = negamax_impl(board, -beta, -alpha, half_depth, evaluator);
[INFO] [stdout]     |                          ^^^^^ help: if this is intentional, prefix it with an underscore: `_nodes`
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]   --> src/ml/mod.rs:44:65
[INFO] [stdout]    |
[INFO] [stdout] 44 | pub fn self_play<E: Evaluator + Trainable + Clone>(mut eval: E, mut lr: f32, mut e: f32, batch_size: usize, rounds: usize) -> E {
[INFO] [stdout]    |                                                                 ----^^
[INFO] [stdout]    |                                                                 |
[INFO] [stdout]    |                                                                 help: remove this `mut`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_mut)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]   --> src/ml/mod.rs:44:78
[INFO] [stdout]    |
[INFO] [stdout] 44 | pub fn self_play<E: Evaluator + Trainable + Clone>(mut eval: E, mut lr: f32, mut e: f32, batch_size: usize, rounds: usize) -> E {
[INFO] [stdout]    |                                                                              ----^
[INFO] [stdout]    |                                                                              |
[INFO] [stdout]    |                                                                              help: remove this `mut`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: constant is never used: `PROBCUT_DEPTH`
[INFO] [stdout]   --> src/search/nm_new.rs:15:1
[INFO] [stdout]    |
[INFO] [stdout] 15 | const PROBCUT_DEPTH: u8 = 7;
[INFO] [stdout]    | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: constant is never used: `PROBCUT_SHALLOW`
[INFO] [stdout]   --> src/search/nm_new.rs:16:1
[INFO] [stdout]    |
[INFO] [stdout] 16 | const PROBCUT_SHALLOW: u8 = 1;
[INFO] [stdout]    | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: constant is never used: `PROBCUT_SIGMA`
[INFO] [stdout]   --> src/search/nm_new.rs:17:1
[INFO] [stdout]    |
[INFO] [stdout] 17 | const PROBCUT_SIGMA: f32 = 642.0;
[INFO] [stdout]    | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: constant is never used: `PROBCUT_THRESHOLD`
[INFO] [stdout]   --> src/search/nm_new.rs:18:1
[INFO] [stdout]    |
[INFO] [stdout] 18 | const PROBCUT_THRESHOLD: f32 = 1.645;
[INFO] [stdout]    | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: constant is never used: `PROBCUT_BIAS_MAX`
[INFO] [stdout]   --> src/search/nm_new.rs:19:1
[INFO] [stdout]    |
[INFO] [stdout] 19 | const PROBCUT_BIAS_MAX: f32 = PROBCUT_SIGMA * PROBCUT_THRESHOLD;
[INFO] [stdout]    | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: constant is never used: `PROBCUT_A`
[INFO] [stdout]   --> src/search/nm_new.rs:20:1
[INFO] [stdout]    |
[INFO] [stdout] 20 | const PROBCUT_A: f32 = 1.12749;
[INFO] [stdout]    | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: constant is never used: `PROBCUT_B`
[INFO] [stdout]   --> src/search/nm_new.rs:21:1
[INFO] [stdout]    |
[INFO] [stdout] 21 | const PROBCUT_B: f32 = -3.6805;
[INFO] [stdout]    | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `nodes`
[INFO] [stdout]    --> src/search/negamax.rs:202:26
[INFO] [stdout]     |
[INFO] [stdout] 202 |             let (result, nodes) = negamax_impl(board, -beta, -alpha, half_depth, evaluator);
[INFO] [stdout]     |                          ^^^^^ help: if this is intentional, prefix it with an underscore: `_nodes`
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 11 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `RLPatternEvaluator`
[INFO] [stdout]   --> src/main.rs:18:61
[INFO] [stdout]    |
[INFO] [stdout] 18 | use ruthless::ml::{ self, eval::{ StagedRLPatternEvaluator, RLPatternEvaluator } };
[INFO] [stdout]    |                                                             ^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `RLPatternEvaluator`
[INFO] [stdout]   --> src/main.rs:18:61
[INFO] [stdout]    |
[INFO] [stdout] 18 | use ruthless::ml::{ self, eval::{ StagedRLPatternEvaluator, RLPatternEvaluator } };
[INFO] [stdout]    |                                                             ^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]   --> src/ml/mod.rs:44:65
[INFO] [stdout]    |
[INFO] [stdout] 44 | pub fn self_play<E: Evaluator + Trainable + Clone>(mut eval: E, mut lr: f32, mut e: f32, batch_size: usize, rounds: usize) -> E {
[INFO] [stdout]    |                                                                 ----^^
[INFO] [stdout]    |                                                                 |
[INFO] [stdout]    |                                                                 help: remove this `mut`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_mut)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]   --> src/ml/mod.rs:44:78
[INFO] [stdout]    |
[INFO] [stdout] 44 | pub fn self_play<E: Evaluator + Trainable + Clone>(mut eval: E, mut lr: f32, mut e: f32, batch_size: usize, rounds: usize) -> E {
[INFO] [stdout]    |                                                                              ----^
[INFO] [stdout]    |                                                                              |
[INFO] [stdout]    |                                                                              help: remove this `mut`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: constant is never used: `PROBCUT_DEPTH`
[INFO] [stdout]   --> src/search/nm_new.rs:15:1
[INFO] [stdout]    |
[INFO] [stdout] 15 | const PROBCUT_DEPTH: u8 = 7;
[INFO] [stdout]    | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: constant is never used: `PROBCUT_SHALLOW`
[INFO] [stdout]   --> src/search/nm_new.rs:16:1
[INFO] [stdout]    |
[INFO] [stdout] 16 | const PROBCUT_SHALLOW: u8 = 1;
[INFO] [stdout]    | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: constant is never used: `PROBCUT_SIGMA`
[INFO] [stdout]   --> src/search/nm_new.rs:17:1
[INFO] [stdout]    |
[INFO] [stdout] 17 | const PROBCUT_SIGMA: f32 = 642.0;
[INFO] [stdout]    | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: constant is never used: `PROBCUT_THRESHOLD`
[INFO] [stdout]   --> src/search/nm_new.rs:18:1
[INFO] [stdout]    |
[INFO] [stdout] 18 | const PROBCUT_THRESHOLD: f32 = 1.645;
[INFO] [stdout]    | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: constant is never used: `PROBCUT_BIAS_MAX`
[INFO] [stdout]   --> src/search/nm_new.rs:19:1
[INFO] [stdout]    |
[INFO] [stdout] 19 | const PROBCUT_BIAS_MAX: f32 = PROBCUT_SIGMA * PROBCUT_THRESHOLD;
[INFO] [stdout]    | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: constant is never used: `PROBCUT_A`
[INFO] [stdout]   --> src/search/nm_new.rs:20:1
[INFO] [stdout]    |
[INFO] [stdout] 20 | const PROBCUT_A: f32 = 1.12749;
[INFO] [stdout]    | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: constant is never used: `PROBCUT_B`
[INFO] [stdout]   --> src/search/nm_new.rs:21:1
[INFO] [stdout]    |
[INFO] [stdout] 21 | const PROBCUT_B: f32 = -3.6805;
[INFO] [stdout]    | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 11 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 44.49s
[INFO] running `Command { std: "docker" "inspect" "fd39932c2dd4ae7c1eefd35b856b41117a947c0520b5072312698c7c25ea322a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "fd39932c2dd4ae7c1eefd35b856b41117a947c0520b5072312698c7c25ea322a", kill_on_drop: false }`
[INFO] [stdout] fd39932c2dd4ae7c1eefd35b856b41117a947c0520b5072312698c7c25ea322a